9UBX | pdb_00009ubx

The atomic coordinates of the mouse CatSper trimer

External Resource: Annotation

Domain Annotation: ECOD Classification
Protein Family Annotation
Gene Ontology: Gene Product Annotation
InterPro: Protein Family Classification

Domain Annotation: ECOD Classification ECOD Database Homepage

Chains	Family Name	Domain Identifier	Architecture	Possible Homology	Homology	Topology	Family	Provenance Source (Version)
PA [auth Q]	Fusion_gly	e9ubxQ1	A: alpha arrays	X: Hypothetical protein YqbG-like	H: Hypothetical protein YqbG-like	T: alpha/beta-Hydrolases	F: Fusion_gly	ECOD (v295.2)
JA [auth i]	Fusion_gly	e9ubxi1	A: alpha arrays	X: Hypothetical protein YqbG-like	H: Hypothetical protein YqbG-like	T: alpha/beta-Hydrolases	F: Fusion_gly	ECOD (v295.2)
I	Fusion_gly	e9ubxI1	A: alpha arrays	X: Hypothetical protein YqbG-like	H: Hypothetical protein YqbG-like	T: alpha/beta-Hydrolases	F: Fusion_gly	ECOD (v295.2)
R [auth q]	Fusion_gly	e9ubxq1	A: alpha arrays	X: Hypothetical protein YqbG-like	H: Hypothetical protein YqbG-like	T: alpha/beta-Hydrolases	F: Fusion_gly	ECOD (v295.2)
EA [auth d]	Fusion_gly	e9ubxd1	A: alpha arrays	X: Hypothetical protein YqbG-like	H: Hypothetical protein YqbG-like	T: alpha/beta-Hydrolases	F: Fusion_gly	ECOD (v295.2)
D	Fusion_gly	e9ubxD1	A: alpha arrays	X: Hypothetical protein YqbG-like	H: Hypothetical protein YqbG-like	T: alpha/beta-Hydrolases	F: Fusion_gly	ECOD (v295.2)
Q [auth p]	Fusion_gly	e9ubxp1	A: alpha arrays	X: Hypothetical protein YqbG-like	H: Hypothetical protein YqbG-like	T: alpha/beta-Hydrolases	F: Fusion_gly	ECOD (v295.2)
DA [auth c]	Fusion_gly	e9ubxc1	A: alpha arrays	X: Hypothetical protein YqbG-like	H: Hypothetical protein YqbG-like	T: alpha/beta-Hydrolases	F: Fusion_gly	ECOD (v295.2)
C	Fusion_gly	e9ubxC1	A: alpha arrays	X: Hypothetical protein YqbG-like	H: Hypothetical protein YqbG-like	T: alpha/beta-Hydrolases	F: Fusion_gly	ECOD (v295.2)
P [auth o]	Fusion_gly	e9ubxo1	A: alpha arrays	X: Hypothetical protein YqbG-like	H: Hypothetical protein YqbG-like	T: alpha/beta-Hydrolases	F: Fusion_gly	ECOD (v295.2)
CA [auth b]	Fusion_gly	e9ubxb1	A: alpha arrays	X: Hypothetical protein YqbG-like	H: Hypothetical protein YqbG-like	T: alpha/beta-Hydrolases	F: Fusion_gly	ECOD (v295.2)
B	Fusion_gly	e9ubxB1	A: alpha arrays	X: Hypothetical protein YqbG-like	H: Hypothetical protein YqbG-like	T: alpha/beta-Hydrolases	F: Fusion_gly	ECOD (v295.2)
Y [auth y]	Fusion_gly	e9ubxy1	A: alpha arrays	X: Hypothetical protein YqbG-like	H: Hypothetical protein YqbG-like	T: alpha/beta-Hydrolases	F: Fusion_gly	ECOD (v295.2)
MA [auth l]	Fusion_gly	e9ubxl1	A: alpha arrays	X: Hypothetical protein YqbG-like	H: Hypothetical protein YqbG-like	T: alpha/beta-Hydrolases	F: Fusion_gly	ECOD (v295.2)
L	Fusion_gly	e9ubxL1	A: alpha arrays	X: Hypothetical protein YqbG-like	H: Hypothetical protein YqbG-like	T: alpha/beta-Hydrolases	F: Fusion_gly	ECOD (v295.2)
O [auth n]	Fusion_gly	e9ubxn1	A: alpha arrays	X: Hypothetical protein YqbG-like	H: Hypothetical protein YqbG-like	T: alpha/beta-Hydrolases	F: Fusion_gly	ECOD (v295.2)
BA [auth a]	Fusion_gly	e9ubxa1	A: alpha arrays	X: Hypothetical protein YqbG-like	H: Hypothetical protein YqbG-like	T: alpha/beta-Hydrolases	F: Fusion_gly	ECOD (v295.2)
A	Fusion_gly	e9ubxA1	A: alpha arrays	X: Hypothetical protein YqbG-like	H: Hypothetical protein YqbG-like	T: alpha/beta-Hydrolases	F: Fusion_gly	ECOD (v295.2)

Protein Family Annotation Pfam Database Homepage

Chains	Accession	Name	Description	Comments	Source
I, JA [auth i], PA [auth Q]	PF00520	Ion transport protein (Ion_trans)	Ion transport protein	-	Family
H, IA [auth h], V [auth u]	PF22850	CATSPERD/E C-terminal domain (CATSPERD-E_C)	CATSPERD/E C-terminal domain	The CATSPER (cation channel of sperm) complex is a tetrameric complex consisting of CATSPER1, CATSPER2, CATSPER3 and CATSPER4, it functions as an alkalinisation-activated calcium channel. This complex is involved in sperm cell hyperactivation, a proc ...	The CATSPER (cation channel of sperm) complex is a tetrameric complex consisting of CATSPER1, CATSPER2, CATSPER3 and CATSPER4, it functions as an alkalinisation-activated calcium channel. This complex is involved in sperm cell hyperactivation, a process needed for sperm motility, which is essential late in the preparation of sperm for fertilisation [1]. This complex requires four auxiliary subunits (beta, gamma, delta and epsilon), which play a role in channel assembly [1]. These are multidomain proteins which share a similar domain organisation. This entry represents the C-terminal domain of delta and epsilon subunits, which covers the stem domain and the transmembrane helix, which are involved in the association with the channel domain [1].	Domain
H, IA [auth h], V [auth u]	PF22841	CATSPERE first N-terminal domain (CATSPERE_NTD1)	CATSPERE first N-terminal domain	This entry includes CATSPERE, the auxiliary subunit epsilon of the CatSper complex, a complex involved in sperm cell hyperactivation. This process is needed for sperm motility, which is essential late in the preparation of sperm for fertilisation [1, ...	This entry includes CATSPERE, the auxiliary subunit epsilon of the CatSper complex, a complex involved in sperm cell hyperactivation. This process is needed for sperm motility, which is essential late in the preparation of sperm for fertilisation [1,2]. This is a multi-domain protein which has a similar domain organisation as the other auxiliary subunits, beta, gamma and delta. The epsilon subunit has an additional N-terminal domain (NTD2). This entry represents the first N-terminal domain [1].	Domain
H, IA [auth h], V [auth u]	PF22849	CATSPERE Ig-like domain (CATSPERE_Ig-like)	CATSPERE Ig-like domain	The CATSPER (cation channel of sperm) complex is a tetrameric complex consisting of CATSPER1, CATSPER2, CATSPER3 and CATSPER4, it functions as an alkalinisation-activated calcium channel. This complex is involved in sperm cell hyperactivation, a proc ...	The CATSPER (cation channel of sperm) complex is a tetrameric complex consisting of CATSPER1, CATSPER2, CATSPER3 and CATSPER4, it functions as an alkalinisation-activated calcium channel. This complex is involved in sperm cell hyperactivation, a process needed for sperm motility, which is essential late in the preparation of sperm for fertilisation [1]. This complex requires four auxiliary subunits (beta, gamma, delta and epsilon), which play a role in channel assembly [1]. These are multidomain proteins which share a similar domain organisation. This entry represents the Ig-like domain of CATSPERE (epsilon subunit).	Domain
H, IA [auth h], V [auth u]	PF22843	CATSPERE second N-terminal domain (CATSPERE_NTD2)	CATSPERE second N-terminal domain	This entry includes CATSPERE, the auxiliary subunit epsilon of the CatSper complex, a complex involved in sperm cell hyperactivation. This process is needed for sperm motility, which is essential late in the preparation of sperm for fertilisation [1, ...	This entry includes CATSPERE, the auxiliary subunit epsilon of the CatSper complex, a complex involved in sperm cell hyperactivation. This process is needed for sperm motility, which is essential late in the preparation of sperm for fertilisation [1,2]. This is a multi-domain protein which has a similar domain organisation as the other auxiliary subunits, beta, gamma and delta. The epsilon subunit has two N-terminal domains (NTD1/2). This entry represents the second N-terminal domain [1].	Domain
H, IA [auth h], V [auth u]	PF22844	CATSPERE beta-propeller domain (Beta-prop_CATSPERE)	CATSPERE beta-propeller domain	-	Repeat
G, HA [auth g], U [auth t]	PF22850	CATSPERD/E C-terminal domain (CATSPERD-E_C)	CATSPERD/E C-terminal domain	The CATSPER (cation channel of sperm) complex is a tetrameric complex consisting of CATSPER1, CATSPER2, CATSPER3 and CATSPER4, it functions as an alkalinisation-activated calcium channel. This complex is involved in sperm cell hyperactivation, a proc ...	The CATSPER (cation channel of sperm) complex is a tetrameric complex consisting of CATSPER1, CATSPER2, CATSPER3 and CATSPER4, it functions as an alkalinisation-activated calcium channel. This complex is involved in sperm cell hyperactivation, a process needed for sperm motility, which is essential late in the preparation of sperm for fertilisation [1]. This complex requires four auxiliary subunits (beta, gamma, delta and epsilon), which play a role in channel assembly [1]. These are multidomain proteins which share a similar domain organisation. This entry represents the C-terminal domain of delta and epsilon subunits, which covers the stem domain and the transmembrane helix, which are involved in the association with the channel domain [1].	Domain
G, HA [auth g], U [auth t]	PF15020	CATSPERD, beta-propeller domain (Beta-prop_CATSPERD)	CATSPERD, beta-propeller domain	-	Repeat
G, HA [auth g], U [auth t]	PF23747	CATSPERD Ig-like domain (Ig-like_CATSPERD)	CATSPERD Ig-like domain	The CATSPER (cation channel of sperm) complex is a tetrameric complex consisting of CATSPER1, CATSPER2, CATSPER3 and CATSPER4, it functions as an alkalinisation-activated calcium channel. This complex is involved in sperm cell hyperactivation, a proc ...	The CATSPER (cation channel of sperm) complex is a tetrameric complex consisting of CATSPER1, CATSPER2, CATSPER3 and CATSPER4, it functions as an alkalinisation-activated calcium channel. This complex is involved in sperm cell hyperactivation, a process needed for sperm motility, which is essential late in the preparation of sperm for fertilisation [1]. This complex requires four auxiliary subunits (beta, gamma, delta and epsilon), which play a role in channel assembly [1,2]. These are multidomain proteins which share a similar domain organisation. This entry represents a Ig-like domain found in the central region of the delta subunit (CATSPERD) [2].	Domain
F, GA [auth s], T [auth f]	PF22851	CATSPERG Ig-like domain (CATSPERG_Ig-like)	CATSPERG Ig-like domain	The CATSPER (cation channel of sperm) complex is a tetrameric complex consisting of CATSPER1, CATSPER2, CATSPER3 and CATSPER4, it functions as an alkalinisation-activated calcium channel. This complex is involved in sperm cell hyperactivation, a proc ...	The CATSPER (cation channel of sperm) complex is a tetrameric complex consisting of CATSPER1, CATSPER2, CATSPER3 and CATSPER4, it functions as an alkalinisation-activated calcium channel. This complex is involved in sperm cell hyperactivation, a process needed for sperm motility, which is essential late in the preparation of sperm for fertilisation [1]. This complex requires four auxiliary subunits (beta, gamma, delta and epsilon), which play a role in channel assembly [1]. These are multidomain proteins which share a similar domain organisation. This entry represents the Ig-like domain of CATSPERG (gamma subunit).	Domain
F, GA [auth s], T [auth f]	PF22840	CATSPERG N-terminal domain (CATSPERG_NTD)	CATSPERG N-terminal domain	This entry includes CATSPERG, an auxiliary subunit of the CatSper complex, a complex involved in sperm cell hyperactivation. This process is needed for sperm motility, which is essential late in the preparation of sperm for fertilisation [1,2]. This ...	This entry includes CATSPERG, an auxiliary subunit of the CatSper complex, a complex involved in sperm cell hyperactivation. This process is needed for sperm motility, which is essential late in the preparation of sperm for fertilisation [1,2]. This is a multi-domain protein; this entry represents the N-terminal domain [1].	Domain
F, GA [auth s], T [auth f]	PF15064	CATSPERG beta-propeller domain (CATSPERG_beta-prop)	CATSPERG beta-propeller domain	-	Repeat
F, GA [auth s], T [auth f]	PF22846	CATSPERG C-terminal domain (CATSPERG_C)	CATSPERG C-terminal domain	The CATSPER (cation channel of sperm) complex is a tetrameric complex consisting of CATSPER1, CATSPER2, CATSPER3 and CATSPER4, it functions as an alkalinisation-activated calcium channel. This complex is involved in sperm cell hyperactivation, a proc ...	The CATSPER (cation channel of sperm) complex is a tetrameric complex consisting of CATSPER1, CATSPER2, CATSPER3 and CATSPER4, it functions as an alkalinisation-activated calcium channel. This complex is involved in sperm cell hyperactivation, a process needed for sperm motility, which is essential late in the preparation of sperm for fertilisation [1]. This complex requires four auxiliary subunits (beta, gamma, delta and epsilon), which play a role in channel assembly [1]. These are multidomain proteins which share a similar domain organisation. This entry represents the C-terminal domain of CATSPERG, which covers the Stem domain and the transmembrane helix, involved in the association with the channel domain [1].	Domain
E, FA [auth e], S [auth r]	PF21541	CATSPER protein subunit beta protein 1st domain (CATSPERB_1st)	CATSPER protein subunit beta protein 1st domain	This entry represents the N-terminal domain from the Cation channel sperm-associated protein subunit beta protein.	Domain
E, FA [auth e], S [auth r]	PF22830	CATSPERB head domain (CATSPERB_head)	CATSPERB head domain	CATSPERB (Cation channel sperm-associated protein subunit beta) is an auxiliary subunit of the CatSper complex which is involved in sperm cell hyperactivation, a process needed for sperm motility which is essential late in the preparation of sperm fo ...	CATSPERB (Cation channel sperm-associated protein subunit beta) is an auxiliary subunit of the CatSper complex which is involved in sperm cell hyperactivation, a process needed for sperm motility which is essential late in the preparation of sperm for fertilisation. This is a multi-domain protein which consists of an N-terminal domain (Pfam:PF21541), followed by a beta-propeller (Pfam:PF21548) that is also present in the other auxiliary subunits gamma, delta and epsilon. This entry represents the head domain, only present in the beta subunit [1].	Domain
E, FA [auth e], S [auth r]	PF21548	CATSPER subunit beta protein 2nd domain (CATSPERB_2nd)	CATSPER subunit beta protein 2nd domain	-	Repeat
E, FA [auth e], S [auth r]	PF22831	CATSPERB Ig-like domain (CATSPERB_Ig-like)	CATSPERB Ig-like domain	CATSPERB (Cation channel sperm-associated protein subunit beta) is an auxiliary subunit of the CatSper complex which is involved in sperm cell hyperactivation, a process needed for sperm motility which is essential late in the preparation of sperm fo ...	CATSPERB (Cation channel sperm-associated protein subunit beta) is an auxiliary subunit of the CatSper complex which is involved in sperm cell hyperactivation, a process needed for sperm motility which is essential late in the preparation of sperm for fertilisation. This is a multi-domain protein which consists of an N-terminal domain (Pfam:PF21541), followed by a beta-propeller (Pfam:PF21548) that is also present in the other auxiliary subunits gamma, delta and epsilon. This entry represents the Ig-like domain of CATSPERB [1], which, seals the top of the channel together with the Ig-like domains of the other auxiliary subunits [1].	Domain
E, FA [auth e], S [auth r]	PF15149	CATSPERB, C-terminal domain (CATSPERB_C)	CATSPERB, C-terminal domain	This entry includes CATSPERB, an auxiliary subunit of the CatSper complex, a complex involved in sperm cell hyperactivation. This process is needed for sperm motility, which is essential late in the preparation of sperm for fertilisation [1,2]. This ...	This entry includes CATSPERB, an auxiliary subunit of the CatSper complex, a complex involved in sperm cell hyperactivation. This process is needed for sperm motility, which is essential late in the preparation of sperm for fertilisation [1,2]. This is a multi-domain protein; this entry represents the C-terminal domain which covers the Stem domain and the transmembrane helix, which are involved in the association with the channel domain [2].	Domain
D, EA [auth d], R [auth q]	PF00520	Ion transport protein (Ion_trans)	Ion transport protein	-	Family
C, DA [auth c], Q [auth p]	PF00520	Ion transport protein (Ion_trans)	Ion transport protein	-	Family
B, CA [auth b], P [auth o]	PF00520	Ion transport protein (Ion_trans)	Ion transport protein	-	Family
L, MA [auth l], Y [auth y]	PF03137	Organic Anion Transporter Polypeptide (OATP) family (OATP)	Organic Anion Transporter Polypeptide (OATP) family	-	Family
L, MA [auth l], Y [auth y]	PF07648	Kazal-type serine protease inhibitor domain (Kazal_2)	Kazal-type serine protease inhibitor domain	Usually indicative of serine protease inhibitors. However, kazal-like domains are also seen in the extracellular part of agrins, which are not known to be protease inhibitors. Kazal domains often occur in tandem arrays. Small alpha+beta fold containi ...	Usually indicative of serine protease inhibitors. However, kazal-like domains are also seen in the extracellular part of agrins, which are not known to be protease inhibitors. Kazal domains often occur in tandem arrays. Small alpha+beta fold containing three disulphides.	Domain
J, KA [auth j], W [auth w]	PF15158	Cation channel sperm-associated auxiliary subunit TMEM249 (TMEM249)	Cation channel sperm-associated auxiliary subunit TMEM249	-	Family
A, BA [auth a], O [auth n]	PF00520	Ion transport protein (Ion_trans)	Ion transport protein	-	Family

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
I, JA [auth i], PA [auth Q]	EF-hand calcium-binding domain-containing protein 9	molecular sensor activity calcium ion sensor activity molecular function regulator activity metal ion sensor activity protein binding binding calmodulin binding cation binding ion binding calcium ion binding metal ion binding small molecule binding	developmental process spermatogenesis sexual reproduction reproductive process multicellular organismal reproductive process developmental process involved in reproduction male gamete generation gamete generation spermatid development spermatid differentiation cellular developmental process cell development cellular process involved in reproduction in multicellular organism developmental maturation developmental process spermatogenesis sexual reproduction reproductive process multicellular organismal reproductive process developmental process involved in reproduction male gamete generation gamete generation spermatid development spermatid differentiation cellular developmental process cell development cellular process involved in reproduction in multicellular organism developmental maturation sperm capacitation anatomical structure maturation cell differentiation anatomical structure development germ cell development cellular process cell maturation sperm motility cilium movement involved in cell motility cilium or flagellum-dependent cell motility cilium-dependent cell motility flagellated sperm motility microtubule-based movement microtubule-based process cilium movement cell motility	membrane-bounded organelle cell projection cellular anatomical structure sperm principal piece organelle cilium 9+2 motile cilium sperm flagellum motile cilium plasma membrane bounded cell projection intracellular anatomical structure cytoplasm protein-containing complex plasma membrane protein complex membrane-bounded organelle cell projection cellular anatomical structure sperm principal piece organelle cilium 9+2 motile cilium sperm flagellum motile cilium plasma membrane bounded cell projection intracellular anatomical structure cytoplasm protein-containing complex plasma membrane protein complex voltage-gated calcium channel complex membrane plasma membrane membrane protein complex cation channel complex transporter complex cell periphery transmembrane transporter complex calcium channel complex CatSper complex monoatomic ion channel complex
H, IA [auth h], V [auth u]	Cation channel sperm-associated auxiliary subunit epsilon	-	developmental process spermatogenesis sexual reproduction reproductive process multicellular organismal reproductive process developmental process involved in reproduction male gamete generation gamete generation spermatid development spermatid differentiation cellular developmental process cell development cellular process involved in reproduction in multicellular organism developmental maturation developmental process spermatogenesis sexual reproduction reproductive process multicellular organismal reproductive process developmental process involved in reproduction male gamete generation gamete generation spermatid development spermatid differentiation cellular developmental process cell development cellular process involved in reproduction in multicellular organism developmental maturation sperm capacitation anatomical structure maturation cell differentiation anatomical structure development germ cell development cellular process cell maturation sperm motility cilium movement involved in cell motility cilium or flagellum-dependent cell motility cilium-dependent cell motility flagellated sperm motility microtubule-based movement microtubule-based process cilium movement cell motility	membrane-bounded organelle cell projection cellular anatomical structure sperm principal piece organelle cilium 9+2 motile cilium sperm flagellum motile cilium plasma membrane bounded cell projection protein-containing complex plasma membrane protein complex voltage-gated calcium channel complex membrane membrane-bounded organelle cell projection cellular anatomical structure sperm principal piece organelle cilium 9+2 motile cilium sperm flagellum motile cilium plasma membrane bounded cell projection protein-containing complex plasma membrane protein complex voltage-gated calcium channel complex membrane plasma membrane membrane protein complex cation channel complex transporter complex cell periphery transmembrane transporter complex calcium channel complex CatSper complex monoatomic ion channel complex
G, HA [auth g], U [auth t]	Cation channel sperm-associated auxiliary subunit delta	-	developmental process spermatogenesis sexual reproduction reproductive process multicellular organismal reproductive process developmental process involved in reproduction male gamete generation gamete generation spermatid development spermatid differentiation cellular developmental process cell development cellular process involved in reproduction in multicellular organism developmental maturation developmental process spermatogenesis sexual reproduction reproductive process multicellular organismal reproductive process developmental process involved in reproduction male gamete generation gamete generation spermatid development spermatid differentiation cellular developmental process cell development cellular process involved in reproduction in multicellular organism developmental maturation sperm capacitation anatomical structure maturation cell differentiation anatomical structure development germ cell development cellular process cell maturation sperm motility cilium movement involved in cell motility cilium or flagellum-dependent cell motility cilium-dependent cell motility flagellated sperm motility microtubule-based movement microtubule-based process cilium movement cell motility	membrane-bounded organelle cell projection cellular anatomical structure sperm principal piece organelle cilium 9+2 motile cilium sperm flagellum motile cilium plasma membrane bounded cell projection protein-containing complex plasma membrane protein complex voltage-gated calcium channel complex membrane membrane-bounded organelle cell projection cellular anatomical structure sperm principal piece organelle cilium 9+2 motile cilium sperm flagellum motile cilium plasma membrane bounded cell projection protein-containing complex plasma membrane protein complex voltage-gated calcium channel complex membrane plasma membrane membrane protein complex cation channel complex transporter complex cell periphery transmembrane transporter complex calcium channel complex CatSper complex monoatomic ion channel complex
F, GA [auth s], T [auth f]	Cation channel sperm-associated auxiliary subunit gamma 2	-	developmental process spermatogenesis sexual reproduction reproductive process multicellular organismal reproductive process developmental process involved in reproduction male gamete generation gamete generation spermatid development spermatid differentiation cellular developmental process cell development cellular process involved in reproduction in multicellular organism developmental maturation developmental process spermatogenesis sexual reproduction reproductive process multicellular organismal reproductive process developmental process involved in reproduction male gamete generation gamete generation spermatid development spermatid differentiation cellular developmental process cell development cellular process involved in reproduction in multicellular organism developmental maturation sperm capacitation anatomical structure maturation cell differentiation anatomical structure development germ cell development cellular process cell maturation sperm motility cilium movement involved in cell motility cilium or flagellum-dependent cell motility cilium-dependent cell motility flagellated sperm motility microtubule-based movement microtubule-based process cilium movement cell motility	membrane-bounded organelle cell projection cellular anatomical structure sperm principal piece organelle cilium 9+2 motile cilium sperm flagellum motile cilium plasma membrane bounded cell projection protein-containing complex plasma membrane protein complex voltage-gated calcium channel complex membrane membrane-bounded organelle cell projection cellular anatomical structure sperm principal piece organelle cilium 9+2 motile cilium sperm flagellum motile cilium plasma membrane bounded cell projection protein-containing complex plasma membrane protein complex voltage-gated calcium channel complex membrane plasma membrane membrane protein complex cation channel complex transporter complex cell periphery transmembrane transporter complex calcium channel complex CatSper complex monoatomic ion channel complex
E, FA [auth e], S [auth r]	Cation channel sperm-associated auxiliary subunit beta	-	developmental process spermatogenesis sexual reproduction reproductive process multicellular organismal reproductive process developmental process involved in reproduction male gamete generation gamete generation spermatid development spermatid differentiation cellular developmental process cell development cellular process involved in reproduction in multicellular organism developmental maturation developmental process spermatogenesis sexual reproduction reproductive process multicellular organismal reproductive process developmental process involved in reproduction male gamete generation gamete generation spermatid development spermatid differentiation cellular developmental process cell development cellular process involved in reproduction in multicellular organism developmental maturation sperm capacitation anatomical structure maturation cell differentiation anatomical structure development germ cell development cellular process cell maturation sperm motility cilium movement involved in cell motility cilium or flagellum-dependent cell motility cilium-dependent cell motility flagellated sperm motility microtubule-based movement microtubule-based process cilium movement cell motility	membrane-bounded organelle cell projection cellular anatomical structure organelle cilium plasma membrane bounded cell projection protein-containing complex plasma membrane protein complex voltage-gated calcium channel complex membrane plasma membrane membrane protein complex cation channel complex transporter complex membrane-bounded organelle cell projection cellular anatomical structure organelle cilium plasma membrane bounded cell projection protein-containing complex plasma membrane protein complex voltage-gated calcium channel complex membrane plasma membrane membrane protein complex cation channel complex transporter complex cell periphery transmembrane transporter complex calcium channel complex CatSper complex monoatomic ion channel complex sperm principal piece 9+2 motile cilium sperm flagellum motile cilium
D, EA [auth d], R [auth q]	Cation channel sperm-associated protein 4	monoatomic cation transmembrane transporter activity calcium-activated cation channel activity gated channel activity monoatomic ion channel activity monoatomic ion-gated channel activity ligand-gated channel activity ligand-gated monoatomic ion channel activity monoatomic cation channel activity passive transmembrane transporter activity channel activity monoatomic ion transmembrane transporter activity transporter activity ligand-gated monoatomic cation channel activity transmembrane transporter activity monoatomic cation transmembrane transporter activity calcium-activated cation channel activity gated channel activity monoatomic ion channel activity monoatomic ion-gated channel activity ligand-gated channel activity ligand-gated monoatomic ion channel activity monoatomic cation channel activity passive transmembrane transporter activity channel activity monoatomic ion transmembrane transporter activity transporter activity ligand-gated monoatomic cation channel activity transmembrane transporter activity calcium channel activity voltage-gated calcium channel activity voltage-gated channel activity voltage-gated monoatomic ion channel activity voltage-gated monoatomic cation channel activity calcium ion transmembrane transporter activity metal ion transmembrane transporter activity	developmental process spermatogenesis sexual reproduction reproductive process multicellular organismal reproductive process developmental process involved in reproduction male gamete generation gamete generation spermatid development spermatid differentiation cellular developmental process cell development cellular process involved in reproduction in multicellular organism developmental maturation developmental process spermatogenesis sexual reproduction reproductive process multicellular organismal reproductive process developmental process involved in reproduction male gamete generation gamete generation spermatid development spermatid differentiation cellular developmental process cell development cellular process involved in reproduction in multicellular organism developmental maturation sperm capacitation anatomical structure maturation cell differentiation anatomical structure development germ cell development cellular process cell maturation sperm motility cilium movement involved in cell motility cilium or flagellum-dependent cell motility cilium-dependent cell motility flagellated sperm motility microtubule-based movement microtubule-based process cilium movement cell motility localization transport monoatomic ion transport monoatomic cation transport establishment of localization sodium ion transport metal ion transport	membrane-bounded organelle cell projection cellular anatomical structure sperm principal piece organelle cilium 9+2 motile cilium sperm flagellum motile cilium plasma membrane bounded cell projection protein-containing complex plasma membrane protein complex voltage-gated calcium channel complex membrane membrane-bounded organelle cell projection cellular anatomical structure sperm principal piece organelle cilium 9+2 motile cilium sperm flagellum motile cilium plasma membrane bounded cell projection protein-containing complex plasma membrane protein complex voltage-gated calcium channel complex membrane plasma membrane membrane protein complex cation channel complex transporter complex cell periphery transmembrane transporter complex calcium channel complex CatSper complex monoatomic ion channel complex acrosomal vesicle intracellular anatomical structure intracellular vesicle intracellular membrane-bounded organelle endomembrane system intracellular organelle cytoplasmic vesicle secretory granule secretory vesicle cytoplasm vesicle
C, DA [auth c], Q [auth p]	Cation channel sperm-associated protein 3	calcium channel activity monoatomic cation transmembrane transporter activity voltage-gated calcium channel activity gated channel activity monoatomic ion channel activity voltage-gated channel activity voltage-gated monoatomic ion channel activity voltage-gated monoatomic cation channel activity monoatomic cation channel activity passive transmembrane transporter activity calcium ion transmembrane transporter activity channel activity monoatomic ion transmembrane transporter activity transporter activity metal ion transmembrane transporter activity calcium channel activity monoatomic cation transmembrane transporter activity voltage-gated calcium channel activity gated channel activity monoatomic ion channel activity voltage-gated channel activity voltage-gated monoatomic ion channel activity voltage-gated monoatomic cation channel activity monoatomic cation channel activity passive transmembrane transporter activity calcium ion transmembrane transporter activity channel activity monoatomic ion transmembrane transporter activity transporter activity metal ion transmembrane transporter activity transmembrane transporter activity	developmental process spermatogenesis sexual reproduction reproductive process multicellular organismal reproductive process developmental process involved in reproduction male gamete generation gamete generation spermatid development spermatid differentiation cellular developmental process cell development cellular process involved in reproduction in multicellular organism developmental maturation developmental process spermatogenesis sexual reproduction reproductive process multicellular organismal reproductive process developmental process involved in reproduction male gamete generation gamete generation spermatid development spermatid differentiation cellular developmental process cell development cellular process involved in reproduction in multicellular organism developmental maturation sperm capacitation anatomical structure maturation cell differentiation anatomical structure development germ cell development cellular process cell maturation sperm motility cilium movement involved in cell motility cilium or flagellum-dependent cell motility cilium-dependent cell motility flagellated sperm motility microtubule-based movement microtubule-based process cilium movement cell motility localization transport monoatomic ion transport monoatomic cation transport establishment of localization sodium ion transport metal ion transport	membrane-bounded organelle cell projection cellular anatomical structure sperm principal piece organelle cilium 9+2 motile cilium sperm flagellum motile cilium plasma membrane bounded cell projection sperm midpiece protein-containing complex plasma membrane protein complex voltage-gated calcium channel complex membrane-bounded organelle cell projection cellular anatomical structure sperm principal piece organelle cilium 9+2 motile cilium sperm flagellum motile cilium plasma membrane bounded cell projection sperm midpiece protein-containing complex plasma membrane protein complex voltage-gated calcium channel complex membrane plasma membrane membrane protein complex cation channel complex transporter complex cell periphery transmembrane transporter complex calcium channel complex CatSper complex monoatomic ion channel complex acrosomal vesicle intracellular anatomical structure intracellular vesicle intracellular membrane-bounded organelle endomembrane system intracellular organelle cytoplasmic vesicle secretory granule secretory vesicle cytoplasm vesicle endoplasmic reticulum
B, CA [auth b], P [auth o]	Cation channel sperm-associated protein 2	calcium channel activity monoatomic cation transmembrane transporter activity voltage-gated calcium channel activity gated channel activity monoatomic ion channel activity voltage-gated channel activity voltage-gated monoatomic ion channel activity voltage-gated monoatomic cation channel activity monoatomic cation channel activity passive transmembrane transporter activity calcium ion transmembrane transporter activity channel activity monoatomic ion transmembrane transporter activity transporter activity metal ion transmembrane transporter activity calcium channel activity monoatomic cation transmembrane transporter activity voltage-gated calcium channel activity gated channel activity monoatomic ion channel activity voltage-gated channel activity voltage-gated monoatomic ion channel activity voltage-gated monoatomic cation channel activity monoatomic cation channel activity passive transmembrane transporter activity calcium ion transmembrane transporter activity channel activity monoatomic ion transmembrane transporter activity transporter activity metal ion transmembrane transporter activity transmembrane transporter activity calcium-activated cation channel activity monoatomic ion-gated channel activity ligand-gated channel activity ligand-gated monoatomic ion channel activity ligand-gated monoatomic cation channel activity	developmental process spermatogenesis sexual reproduction reproductive process multicellular organismal reproductive process developmental process involved in reproduction male gamete generation gamete generation spermatid development spermatid differentiation cellular developmental process cell development cellular process involved in reproduction in multicellular organism developmental maturation developmental process spermatogenesis sexual reproduction reproductive process multicellular organismal reproductive process developmental process involved in reproduction male gamete generation gamete generation spermatid development spermatid differentiation cellular developmental process cell development cellular process involved in reproduction in multicellular organism developmental maturation sperm capacitation anatomical structure maturation cell differentiation anatomical structure development germ cell development cellular process cell maturation fertilization localization transport monoatomic ion transport monoatomic cation transport establishment of localization calcium ion transport metal ion transport sperm motility cilium movement involved in cell motility cilium or flagellum-dependent cell motility cilium-dependent cell motility flagellated sperm motility microtubule-based movement microtubule-based process cilium movement cell motility	protein-containing complex plasma membrane protein complex voltage-gated calcium channel complex membrane plasma membrane membrane protein complex cation channel complex transporter complex cell periphery cellular anatomical structure transmembrane transporter complex calcium channel complex CatSper complex monoatomic ion channel complex protein-containing complex plasma membrane protein complex voltage-gated calcium channel complex membrane plasma membrane membrane protein complex cation channel complex transporter complex cell periphery cellular anatomical structure transmembrane transporter complex calcium channel complex CatSper complex monoatomic ion channel complex membrane-bounded organelle cell projection organelle cilium 9+2 motile cilium sperm flagellum motile cilium plasma membrane bounded cell projection sperm principal piece
AA [auth P], N, OA [auth O]	Unknown protein	-	-	-
M, NA [auth m], Z [auth z]	Cation channel sperm-associated auxiliary subunit TMEM262	-	developmental process spermatogenesis sexual reproduction reproductive process multicellular organismal reproductive process developmental process involved in reproduction male gamete generation gamete generation spermatid development spermatid differentiation cellular developmental process cell development cellular process involved in reproduction in multicellular organism developmental maturation developmental process spermatogenesis sexual reproduction reproductive process multicellular organismal reproductive process developmental process involved in reproduction male gamete generation gamete generation spermatid development spermatid differentiation cellular developmental process cell development cellular process involved in reproduction in multicellular organism developmental maturation sperm capacitation anatomical structure maturation cell differentiation anatomical structure development germ cell development cellular process cell maturation sperm motility cilium movement involved in cell motility cilium or flagellum-dependent cell motility cilium-dependent cell motility flagellated sperm motility microtubule-based movement microtubule-based process cilium movement cell motility	membrane-bounded organelle cell projection cellular anatomical structure sperm principal piece organelle cilium 9+2 motile cilium sperm flagellum motile cilium plasma membrane bounded cell projection protein-containing complex plasma membrane protein complex voltage-gated calcium channel complex membrane membrane-bounded organelle cell projection cellular anatomical structure sperm principal piece organelle cilium 9+2 motile cilium sperm flagellum motile cilium plasma membrane bounded cell projection protein-containing complex plasma membrane protein complex voltage-gated calcium channel complex membrane plasma membrane membrane protein complex cation channel complex transporter complex cell periphery transmembrane transporter complex calcium channel complex CatSper complex monoatomic ion channel complex
L, MA [auth l], Y [auth y]	Solute carrier organic anion transporter family member 6C1	transporter activity transmembrane transporter activity	developmental process spermatogenesis sexual reproduction reproductive process multicellular organismal reproductive process developmental process involved in reproduction male gamete generation gamete generation spermatid development spermatid differentiation cellular developmental process cell development cellular process involved in reproduction in multicellular organism developmental maturation developmental process spermatogenesis sexual reproduction reproductive process multicellular organismal reproductive process developmental process involved in reproduction male gamete generation gamete generation spermatid development spermatid differentiation cellular developmental process cell development cellular process involved in reproduction in multicellular organism developmental maturation sperm capacitation anatomical structure maturation cell differentiation anatomical structure development germ cell development cellular process cell maturation thyroid hormone transport localization transport regulation of hormone levels biological regulation hormone transport regulation of biological quality establishment of localization transmembrane transport sodium-independent organic anion transport sperm motility cilium movement involved in cell motility cilium or flagellum-dependent cell motility cilium-dependent cell motility flagellated sperm motility microtubule-based movement microtubule-based process cilium movement cell motility	protein-containing complex plasma membrane protein complex voltage-gated calcium channel complex membrane plasma membrane membrane protein complex cation channel complex transporter complex cell periphery cellular anatomical structure transmembrane transporter complex calcium channel complex CatSper complex monoatomic ion channel complex protein-containing complex plasma membrane protein complex voltage-gated calcium channel complex membrane plasma membrane membrane protein complex cation channel complex transporter complex cell periphery cellular anatomical structure transmembrane transporter complex calcium channel complex CatSper complex monoatomic ion channel complex basal part of cell basal plasma membrane plasma membrane region basolateral plasma membrane membrane-bounded organelle cell projection sperm principal piece organelle cilium 9+2 motile cilium sperm flagellum motile cilium plasma membrane bounded cell projection
K, LA [auth k], X [auth x]	Cation channel sperm-associated auxiliary subunit zeta	-	developmental process spermatogenesis sexual reproduction reproductive process multicellular organismal reproductive process developmental process involved in reproduction male gamete generation gamete generation spermatid development spermatid differentiation cellular developmental process cell development cellular process involved in reproduction in multicellular organism developmental maturation developmental process spermatogenesis sexual reproduction reproductive process multicellular organismal reproductive process developmental process involved in reproduction male gamete generation gamete generation spermatid development spermatid differentiation cellular developmental process cell development cellular process involved in reproduction in multicellular organism developmental maturation sperm capacitation anatomical structure maturation cell differentiation anatomical structure development germ cell development cellular process cell maturation organelle fission meiotic cell cycle male meiotic nuclear division meiotic cell cycle process cellular component organization nuclear division organelle organization meiotic nuclear division cellular component organization or biogenesis cell cycle cell cycle process sperm motility cilium movement involved in cell motility cilium or flagellum-dependent cell motility cilium-dependent cell motility flagellated sperm motility microtubule-based movement microtubule-based process cilium movement cell motility	membrane-bounded organelle cell projection cellular anatomical structure sperm principal piece organelle cilium 9+2 motile cilium sperm flagellum motile cilium plasma membrane bounded cell projection sperm midpiece intracellular anatomical structure cytoplasm protein-containing complex membrane-bounded organelle cell projection cellular anatomical structure sperm principal piece organelle cilium 9+2 motile cilium sperm flagellum motile cilium plasma membrane bounded cell projection sperm midpiece intracellular anatomical structure cytoplasm protein-containing complex plasma membrane protein complex voltage-gated calcium channel complex membrane plasma membrane membrane protein complex cation channel complex transporter complex cell periphery transmembrane transporter complex calcium channel complex CatSper complex monoatomic ion channel complex
J, KA [auth j], W [auth w]	Cation channel sperm-associated auxiliary subunit TMEM249	-	developmental process spermatogenesis sexual reproduction reproductive process multicellular organismal reproductive process developmental process involved in reproduction male gamete generation gamete generation spermatid development spermatid differentiation cellular developmental process cell development cellular process involved in reproduction in multicellular organism developmental maturation developmental process spermatogenesis sexual reproduction reproductive process multicellular organismal reproductive process developmental process involved in reproduction male gamete generation gamete generation spermatid development spermatid differentiation cellular developmental process cell development cellular process involved in reproduction in multicellular organism developmental maturation sperm capacitation anatomical structure maturation cell differentiation anatomical structure development germ cell development cellular process cell maturation sperm motility cilium movement involved in cell motility cilium or flagellum-dependent cell motility cilium-dependent cell motility flagellated sperm motility microtubule-based movement microtubule-based process cilium movement cell motility	membrane-bounded organelle cell projection cellular anatomical structure sperm principal piece organelle cilium 9+2 motile cilium sperm flagellum motile cilium plasma membrane bounded cell projection protein-containing complex plasma membrane protein complex voltage-gated calcium channel complex membrane membrane-bounded organelle cell projection cellular anatomical structure sperm principal piece organelle cilium 9+2 motile cilium sperm flagellum motile cilium plasma membrane bounded cell projection protein-containing complex plasma membrane protein complex voltage-gated calcium channel complex membrane plasma membrane membrane protein complex cation channel complex transporter complex cell periphery transmembrane transporter complex calcium channel complex CatSper complex monoatomic ion channel complex
A, BA [auth a], O [auth n]	Cation channel sperm-associated protein 1	calcium channel activity monoatomic cation transmembrane transporter activity voltage-gated calcium channel activity gated channel activity monoatomic ion channel activity voltage-gated channel activity voltage-gated monoatomic ion channel activity voltage-gated monoatomic cation channel activity monoatomic cation channel activity passive transmembrane transporter activity calcium ion transmembrane transporter activity channel activity monoatomic ion transmembrane transporter activity transporter activity metal ion transmembrane transporter activity calcium channel activity monoatomic cation transmembrane transporter activity voltage-gated calcium channel activity gated channel activity monoatomic ion channel activity voltage-gated channel activity voltage-gated monoatomic ion channel activity voltage-gated monoatomic cation channel activity monoatomic cation channel activity passive transmembrane transporter activity calcium ion transmembrane transporter activity channel activity monoatomic ion transmembrane transporter activity transporter activity metal ion transmembrane transporter activity transmembrane transporter activity calcium-activated cation channel activity monoatomic ion-gated channel activity ligand-gated channel activity ligand-gated monoatomic ion channel activity ligand-gated monoatomic cation channel activity	fusion of sperm to egg plasma membrane involved in single fertilization sexual reproduction reproductive process fertilization multicellular organismal reproductive process cellular process involved in reproduction in multicellular organism cellular process single fertilization developmental process spermatogenesis developmental process involved in reproduction male gamete generation gamete generation spermatid development fusion of sperm to egg plasma membrane involved in single fertilization sexual reproduction reproductive process fertilization multicellular organismal reproductive process cellular process involved in reproduction in multicellular organism cellular process single fertilization developmental process spermatogenesis developmental process involved in reproduction male gamete generation gamete generation spermatid development spermatid differentiation cellular developmental process cell development developmental maturation sperm capacitation anatomical structure maturation cell differentiation anatomical structure development germ cell development cell maturation regulation of calcium ion transport regulation of localization regulation of biological process transport regulation of transport regulation of monoatomic ion transport biological regulation establishment of localization metal ion transport calcium ion transport localization monoatomic ion transport regulation of metal ion transport monoatomic cation transport sperm motility cilium movement involved in cell motility cilium or flagellum-dependent cell motility cilium-dependent cell motility flagellated sperm motility microtubule-based movement microtubule-based process cilium movement cell motility regulation of cellular process regulation of cell motility regulation of microtubule-based process regulation of microtubule-based movement regulation of cilium-dependent cell motility regulation of cilium movement regulation of cilium beat frequency regulation of locomotion regulation of cilium beat frequency involved in ciliary motility regulation of biological quality regulation of cilium movement involved in cell motility locomotion	protein-containing complex plasma membrane protein complex voltage-gated calcium channel complex membrane plasma membrane membrane protein complex cation channel complex transporter complex cell periphery cellular anatomical structure transmembrane transporter complex calcium channel complex CatSper complex monoatomic ion channel complex protein-containing complex plasma membrane protein complex voltage-gated calcium channel complex membrane plasma membrane membrane protein complex cation channel complex transporter complex cell periphery cellular anatomical structure transmembrane transporter complex calcium channel complex CatSper complex monoatomic ion channel complex membrane-bounded organelle cell projection organelle cilium 9+2 motile cilium sperm flagellum motile cilium plasma membrane bounded cell projection sperm principal piece

InterPro: Protein Family Classification InterPro Database Homepage

Chains	Accession	Name	Type
I, JA [auth i], PA [auth Q]	IPR002048	EF-hand domain	Domain
I, JA [auth i], PA [auth Q]	IPR011992	EF-hand domain pair	Homologous Superfamily
I, JA [auth i], PA [auth Q]	IPR042798	EF-hand calcium-binding domain-containing protein 9	Family
H, IA [auth h], V [auth u]	IPR053814	CATSPERD/E, C-terminal domain	Domain
H, IA [auth h], V [auth u]	IPR053817	CATSPERE, second N-terminal domain	Domain
H, IA [auth h], V [auth u]	IPR028751	Cation channel sperm-associated auxiliary subunit delta/epsilon	Family
H, IA [auth h], V [auth u]	IPR053818	CATSPERE, first N-terminal domain	Domain
H, IA [auth h], V [auth u]	IPR053816	CATSPERE, beta-propeller domain	Domain
H, IA [auth h], V [auth u]	IPR053815	CATSPERE, Ig-like domain	Domain
G, HA [auth g], U [auth t]	IPR053814	CATSPERD/E, C-terminal domain	Domain
G, HA [auth g], U [auth t]	IPR055451	CATSPERD, Ig-like domain	Domain
G, HA [auth g], U [auth t]	IPR028751	Cation channel sperm-associated auxiliary subunit delta/epsilon	Family
G, HA [auth g], U [auth t]	IPR053813	CATSPERD, beta-propeller domain	Domain
F, GA [auth s], T [auth f]	IPR053873	CATSPERG, C-terminal domain	Domain
F, GA [auth s], T [auth f]	IPR053874	CATSPERG, Ig-like domain	Domain
F, GA [auth s], T [auth f]	IPR053872	CATSPERG, N-terminal domain	Domain
F, GA [auth s], T [auth f]	IPR053871	CATSPERG, beta-propeller domain	Domain
F, GA [auth s], T [auth f]	IPR028246	Cation channel sperm-associated auxiliary subunit gamma	Family
E, FA [auth e], S [auth r]	IPR053903	CATSPERB, head domain	Domain
E, FA [auth e], S [auth r]	IPR053904	CATSPERB, Ig-like domain	Domain
E, FA [auth e], S [auth r]	IPR028748	Cation channel sperm-associated auxiliary subunit beta	Family
E, FA [auth e], S [auth r]	IPR048789	Cation channel sperm-associated protein subunit beta, C-terminal domain	Domain
E, FA [auth e], S [auth r]	IPR048788	Cation channel sperm-associated auxiliary subunit beta, 2nd domain	Domain
E, FA [auth e], S [auth r]	IPR048786	Cation channel sperm-associated auxiliary subunit beta, N-terminal domain	Domain
D, EA [auth d], R [auth q]	IPR005821	Ion transport domain	Domain
D, EA [auth d], R [auth q]	IPR028744	Cation channel sperm-associated protein 4	Family
D, EA [auth d], R [auth q]	IPR027359	Voltage-dependent channel domain superfamily	Homologous Superfamily
C, DA [auth c], Q [auth p]	IPR005821	Ion transport domain	Domain
C, DA [auth c], Q [auth p]	IPR027359	Voltage-dependent channel domain superfamily	Homologous Superfamily
B, CA [auth b], P [auth o]	IPR005821	Ion transport domain	Domain
B, CA [auth b], P [auth o]	IPR028747	Cation channel sperm-associated protein 2	Family
B, CA [auth b], P [auth o]	IPR027359	Voltage-dependent channel domain superfamily	Homologous Superfamily
M, NA [auth m], Z [auth z]	IPR040431	Cation channel sperm-associated auxiliary subunit TMEM262	Family
L, MA [auth l], Y [auth y]	IPR036058	Kazal domain superfamily	Homologous Superfamily
L, MA [auth l], Y [auth y]	IPR004156	Organic anion transporter polypeptide	Family
L, MA [auth l], Y [auth y]	IPR036259	MFS transporter superfamily	Homologous Superfamily
L, MA [auth l], Y [auth y]	IPR002350	Kazal domain	Domain
K, LA [auth k], X [auth x]	IPR039019	Cation channel sperm-associated auxiliary subunit zeta	Family
J, KA [auth j], W [auth w]	IPR027861	Cation channel sperm-associated auxiliary subunit TMEM249	Family
A, BA [auth a], O [auth n]	IPR005821	Ion transport domain	Domain
A, BA [auth a], O [auth n]	IPR028746	Cation channel sperm-associated protein 1	Family
A, BA [auth a], O [auth n]	IPR027359	Voltage-dependent channel domain superfamily	Homologous Superfamily

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RCSB PDB Core Operations are funded by the U.S. National Science Foundation (DBI-2321666), the US Department of Energy (DE-SC0019749), and the National Cancer Institute, National Institute of Allergy and Infectious Diseases, and National Institute of General Medical Sciences of the National Institutes of Health under grant R01GM157729. RCSB PDB uses resources of the National Energy Research Scientific Computing Center (NERSC), a Department of Energy User Facility.