Annotations: 1KYI

Domain Annotation: SCOP/SCOPe Classification SCOP-e Database Homepage

Chains	Domain Info	Class	Fold	Superfamily	Family	Domain	Species	Provenance Source (Version)
A	d1kyia_	Alpha and beta proteins (a/b)	P-loop containing nucleoside triphosphate hydrolases	P-loop containing nucleoside triphosphate hydrolases	Extended AAA-ATPase domain	HslU	(Haemophilus influenzae Rd KW20 ) [TaxId: 71421 ],	SCOPe (2.08)
B	d1kyib_	Alpha and beta proteins (a/b)	P-loop containing nucleoside triphosphate hydrolases	P-loop containing nucleoside triphosphate hydrolases	Extended AAA-ATPase domain	HslU	(Haemophilus influenzae Rd KW20 ) [TaxId: 71421 ],	SCOPe (2.08)
C	d1kyic_	Alpha and beta proteins (a/b)	P-loop containing nucleoside triphosphate hydrolases	P-loop containing nucleoside triphosphate hydrolases	Extended AAA-ATPase domain	HslU	(Haemophilus influenzae Rd KW20 ) [TaxId: 71421 ],	SCOPe (2.08)
E	d1kyie_	Alpha and beta proteins (a/b)	P-loop containing nucleoside triphosphate hydrolases	P-loop containing nucleoside triphosphate hydrolases	Extended AAA-ATPase domain	HslU	(Haemophilus influenzae Rd KW20 ) [TaxId: 71421 ],	SCOPe (2.08)
F	d1kyif_	Alpha and beta proteins (a/b)	P-loop containing nucleoside triphosphate hydrolases	P-loop containing nucleoside triphosphate hydrolases	Extended AAA-ATPase domain	HslU	(Haemophilus influenzae Rd KW20 ) [TaxId: 71421 ],	SCOPe (2.08)
S	d1kyis_	Alpha and beta proteins (a/b)	P-loop containing nucleoside triphosphate hydrolases	P-loop containing nucleoside triphosphate hydrolases	Extended AAA-ATPase domain	HslU	(Haemophilus influenzae Rd KW20 ) [TaxId: 71421 ],	SCOPe (2.08)
T	d1kyit_	Alpha and beta proteins (a/b)	P-loop containing nucleoside triphosphate hydrolases	P-loop containing nucleoside triphosphate hydrolases	Extended AAA-ATPase domain	HslU	(Haemophilus influenzae Rd KW20 ) [TaxId: 71421 ],	SCOPe (2.08)
V	d1kyiv_	Alpha and beta proteins (a/b)	P-loop containing nucleoside triphosphate hydrolases	P-loop containing nucleoside triphosphate hydrolases	Extended AAA-ATPase domain	HslU	(Haemophilus influenzae Rd KW20 ) [TaxId: 71421 ],	SCOPe (2.08)
W	d1kyiw_	Alpha and beta proteins (a/b)	P-loop containing nucleoside triphosphate hydrolases	P-loop containing nucleoside triphosphate hydrolases	Extended AAA-ATPase domain	HslU	(Haemophilus influenzae Rd KW20 ) [TaxId: 71421 ],	SCOPe (2.08)
X	d1kyix_	Alpha and beta proteins (a/b)	P-loop containing nucleoside triphosphate hydrolases	P-loop containing nucleoside triphosphate hydrolases	Extended AAA-ATPase domain	HslU	(Haemophilus influenzae Rd KW20 ) [TaxId: 71421 ],	SCOPe (2.08)
U	d1kyiu_	Alpha and beta proteins (a/b)	P-loop containing nucleoside triphosphate hydrolases	P-loop containing nucleoside triphosphate hydrolases	Extended AAA-ATPase domain	HslU	(Haemophilus influenzae Rd KW20 ) [TaxId: 71421 ],	SCOPe (2.08)
D	d1kyid_	Alpha and beta proteins (a/b)	P-loop containing nucleoside triphosphate hydrolases	P-loop containing nucleoside triphosphate hydrolases	Extended AAA-ATPase domain	HslU	(Haemophilus influenzae Rd KW20 ) [TaxId: 71421 ],	SCOPe (2.08)
G	d1kyig_	Alpha and beta proteins (a+b)	Ntn hydrolase-like	N-terminal nucleophile aminohydrolases (Ntn hydrolases)	Proteasome subunits	HslV (ClpQ) protease	(Haemophilus influenzae Rd KW20 ) [TaxId: 71421 ],	SCOPe (2.08)
H	d1kyih_	Alpha and beta proteins (a+b)	Ntn hydrolase-like	N-terminal nucleophile aminohydrolases (Ntn hydrolases)	Proteasome subunits	HslV (ClpQ) protease	(Haemophilus influenzae Rd KW20 ) [TaxId: 71421 ],	SCOPe (2.08)
I	d1kyii_	Alpha and beta proteins (a+b)	Ntn hydrolase-like	N-terminal nucleophile aminohydrolases (Ntn hydrolases)	Proteasome subunits	HslV (ClpQ) protease	(Haemophilus influenzae Rd KW20 ) [TaxId: 71421 ],	SCOPe (2.08)
L	d1kyil_	Alpha and beta proteins (a+b)	Ntn hydrolase-like	N-terminal nucleophile aminohydrolases (Ntn hydrolases)	Proteasome subunits	HslV (ClpQ) protease	(Haemophilus influenzae Rd KW20 ) [TaxId: 71421 ],	SCOPe (2.08)
M	d1kyim_	Alpha and beta proteins (a+b)	Ntn hydrolase-like	N-terminal nucleophile aminohydrolases (Ntn hydrolases)	Proteasome subunits	HslV (ClpQ) protease	(Haemophilus influenzae Rd KW20 ) [TaxId: 71421 ],	SCOPe (2.08)
P	d1kyip_	Alpha and beta proteins (a+b)	Ntn hydrolase-like	N-terminal nucleophile aminohydrolases (Ntn hydrolases)	Proteasome subunits	HslV (ClpQ) protease	(Haemophilus influenzae Rd KW20 ) [TaxId: 71421 ],	SCOPe (2.08)
Q	d1kyiq_	Alpha and beta proteins (a+b)	Ntn hydrolase-like	N-terminal nucleophile aminohydrolases (Ntn hydrolases)	Proteasome subunits	HslV (ClpQ) protease	(Haemophilus influenzae Rd KW20 ) [TaxId: 71421 ],	SCOPe (2.08)
R	d1kyir_	Alpha and beta proteins (a+b)	Ntn hydrolase-like	N-terminal nucleophile aminohydrolases (Ntn hydrolases)	Proteasome subunits	HslV (ClpQ) protease	(Haemophilus influenzae Rd KW20 ) [TaxId: 71421 ],	SCOPe (2.08)
O	d1kyio_	Alpha and beta proteins (a+b)	Ntn hydrolase-like	N-terminal nucleophile aminohydrolases (Ntn hydrolases)	Proteasome subunits	HslV (ClpQ) protease	(Haemophilus influenzae Rd KW20 ) [TaxId: 71421 ],	SCOPe (2.08)
N	d1kyin_	Alpha and beta proteins (a+b)	Ntn hydrolase-like	N-terminal nucleophile aminohydrolases (Ntn hydrolases)	Proteasome subunits	HslV (ClpQ) protease	(Haemophilus influenzae Rd KW20 ) [TaxId: 71421 ],	SCOPe (2.08)
K	d1kyik_	Alpha and beta proteins (a+b)	Ntn hydrolase-like	N-terminal nucleophile aminohydrolases (Ntn hydrolases)	Proteasome subunits	HslV (ClpQ) protease	(Haemophilus influenzae Rd KW20 ) [TaxId: 71421 ],	SCOPe (2.08)
J	d1kyij_	Alpha and beta proteins (a+b)	Ntn hydrolase-like	N-terminal nucleophile aminohydrolases (Ntn hydrolases)	Proteasome subunits	HslV (ClpQ) protease	(Haemophilus influenzae Rd KW20 ) [TaxId: 71421 ],	SCOPe (2.08)

Domain Annotation: SCOP2 Classification SCOP2 Database Homepage

Chains	Type	Family Name	Domain Identifier	Family Identifier	Provenance Source (Version)
G	SCOP2B Superfamily	Class II glutamine amidotransferases	8036903	3000131	SCOP2B (2022-06-29)
H	SCOP2B Superfamily	Class II glutamine amidotransferases	8036903	3000131	SCOP2B (2022-06-29)
I	SCOP2B Superfamily	Class II glutamine amidotransferases	8036903	3000131	SCOP2B (2022-06-29)
L	SCOP2B Superfamily	Class II glutamine amidotransferases	8036903	3000131	SCOP2B (2022-06-29)
M	SCOP2B Superfamily	Class II glutamine amidotransferases	8036903	3000131	SCOP2B (2022-06-29)
P	SCOP2B Superfamily	Class II glutamine amidotransferases	8036903	3000131	SCOP2B (2022-06-29)
Q	SCOP2B Superfamily	Class II glutamine amidotransferases	8036903	3000131	SCOP2B (2022-06-29)
R	SCOP2B Superfamily	Class II glutamine amidotransferases	8036903	3000131	SCOP2B (2022-06-29)
O	SCOP2B Superfamily	Class II glutamine amidotransferases	8036903	3000131	SCOP2B (2022-06-29)
N	SCOP2B Superfamily	Class II glutamine amidotransferases	8036903	3000131	SCOP2B (2022-06-29)
K	SCOP2B Superfamily	Class II glutamine amidotransferases	8036903	3000131	SCOP2B (2022-06-29)
J	SCOP2B Superfamily	Class II glutamine amidotransferases	8036903	3000131	SCOP2B (2022-06-29)

Domain Annotation: ECOD Classification ECOD Database Homepage

Chains	Family Name	Domain Identifier	Architecture	Possible Homology	Homology	Topology	Family	Provenance Source (Version)
A	Acyl-CoA_dh_M	e1kyiA3	A: a/b three-layered sandwiches	X: DEATH domain	H: Ten stranded beta/alpha barrel	T: Ten stranded beta/alpha barrel	F: Acyl-CoA_dh_M	ECOD (v294.1)
B	Acyl-CoA_dh_M	e1kyiB3	A: a/b three-layered sandwiches	X: DEATH domain	H: Ten stranded beta/alpha barrel	T: Ten stranded beta/alpha barrel	F: Acyl-CoA_dh_M	ECOD (v294.1)
C	Acyl-CoA_dh_M	e1kyiC3	A: a/b three-layered sandwiches	X: DEATH domain	H: Ten stranded beta/alpha barrel	T: Ten stranded beta/alpha barrel	F: Acyl-CoA_dh_M	ECOD (v294.1)
E	Acyl-CoA_dh_M	e1kyiE3	A: a/b three-layered sandwiches	X: DEATH domain	H: Ten stranded beta/alpha barrel	T: Ten stranded beta/alpha barrel	F: Acyl-CoA_dh_M	ECOD (v294.1)
F	Acyl-CoA_dh_M	e1kyiF3	A: a/b three-layered sandwiches	X: DEATH domain	H: Ten stranded beta/alpha barrel	T: Ten stranded beta/alpha barrel	F: Acyl-CoA_dh_M	ECOD (v294.1)
S	Acyl-CoA_dh_M	e1kyiS3	A: a/b three-layered sandwiches	X: DEATH domain	H: Ten stranded beta/alpha barrel	T: Ten stranded beta/alpha barrel	F: Acyl-CoA_dh_M	ECOD (v294.1)
T	Acyl-CoA_dh_M	e1kyiT3	A: a/b three-layered sandwiches	X: DEATH domain	H: Ten stranded beta/alpha barrel	T: Ten stranded beta/alpha barrel	F: Acyl-CoA_dh_M	ECOD (v294.1)
V	Acyl-CoA_dh_M	e1kyiV3	A: a/b three-layered sandwiches	X: DEATH domain	H: Ten stranded beta/alpha barrel	T: Ten stranded beta/alpha barrel	F: Acyl-CoA_dh_M	ECOD (v294.1)
W	Acyl-CoA_dh_M	e1kyiW3	A: a/b three-layered sandwiches	X: DEATH domain	H: Ten stranded beta/alpha barrel	T: Ten stranded beta/alpha barrel	F: Acyl-CoA_dh_M	ECOD (v294.1)
X	Acyl-CoA_dh_M	e1kyiX3	A: a/b three-layered sandwiches	X: DEATH domain	H: Ten stranded beta/alpha barrel	T: Ten stranded beta/alpha barrel	F: Acyl-CoA_dh_M	ECOD (v294.1)
U	Acyl-CoA_dh_M	e1kyiU3	A: a/b three-layered sandwiches	X: DEATH domain	H: Ten stranded beta/alpha barrel	T: Ten stranded beta/alpha barrel	F: Acyl-CoA_dh_M	ECOD (v294.1)
D	Acyl-CoA_dh_M	e1kyiD3	A: a/b three-layered sandwiches	X: DEATH domain	H: Ten stranded beta/alpha barrel	T: Ten stranded beta/alpha barrel	F: Acyl-CoA_dh_M	ECOD (v294.1)
G	CBAH	e1kyiG1	A: a/b three-layered sandwiches	X: ETN0001 domain-like	H: ETN0001 domain-like	T: Mss4-like	F: CBAH	ECOD (v294.1)
H	CBAH	e1kyiH1	A: a/b three-layered sandwiches	X: ETN0001 domain-like	H: ETN0001 domain-like	T: Mss4-like	F: CBAH	ECOD (v294.1)
I	CBAH	e1kyiI1	A: a/b three-layered sandwiches	X: ETN0001 domain-like	H: ETN0001 domain-like	T: Mss4-like	F: CBAH	ECOD (v294.1)
L	CBAH	e1kyiL1	A: a/b three-layered sandwiches	X: ETN0001 domain-like	H: ETN0001 domain-like	T: Mss4-like	F: CBAH	ECOD (v294.1)
M	CBAH	e1kyiM1	A: a/b three-layered sandwiches	X: ETN0001 domain-like	H: ETN0001 domain-like	T: Mss4-like	F: CBAH	ECOD (v294.1)
P	CBAH	e1kyiP1	A: a/b three-layered sandwiches	X: ETN0001 domain-like	H: ETN0001 domain-like	T: Mss4-like	F: CBAH	ECOD (v294.1)
Q	CBAH	e1kyiQ1	A: a/b three-layered sandwiches	X: ETN0001 domain-like	H: ETN0001 domain-like	T: Mss4-like	F: CBAH	ECOD (v294.1)
R	CBAH	e1kyiR1	A: a/b three-layered sandwiches	X: ETN0001 domain-like	H: ETN0001 domain-like	T: Mss4-like	F: CBAH	ECOD (v294.1)
O	CBAH	e1kyiO1	A: a/b three-layered sandwiches	X: ETN0001 domain-like	H: ETN0001 domain-like	T: Mss4-like	F: CBAH	ECOD (v294.1)
N	CBAH	e1kyiN1	A: a/b three-layered sandwiches	X: ETN0001 domain-like	H: ETN0001 domain-like	T: Mss4-like	F: CBAH	ECOD (v294.1)
K	CBAH	e1kyiK1	A: a/b three-layered sandwiches	X: ETN0001 domain-like	H: ETN0001 domain-like	T: Mss4-like	F: CBAH	ECOD (v294.1)
J	CBAH	e1kyiJ1	A: a/b three-layered sandwiches	X: ETN0001 domain-like	H: ETN0001 domain-like	T: Mss4-like	F: CBAH	ECOD (v294.1)

Domain Annotation: CATH CATH Database Homepage

Chain	Domain	Class	Architecture	Topology	Homology	Provenance Source (Version)
A	3.40.50.300	Alpha Beta	3-Layer(aba) Sandwich	Rossmann fold	P-loop containing nucleotide triphosphate hydrolases	CATH (4.3.0)
A	1.10.8.10	Mainly Alpha	Orthogonal Bundle	Helicase, Ruva Protein	domain 3	CATH (4.3.0)
A	1.10.8.60	Mainly Alpha	Orthogonal Bundle	Helicase, Ruva Protein	domain 3	CATH (4.3.0)
B	3.40.50.300	Alpha Beta	3-Layer(aba) Sandwich	Rossmann fold	P-loop containing nucleotide triphosphate hydrolases	CATH (4.3.0)
B	1.10.8.10	Mainly Alpha	Orthogonal Bundle	Helicase, Ruva Protein	domain 3	CATH (4.3.0)
B	1.10.8.60	Mainly Alpha	Orthogonal Bundle	Helicase, Ruva Protein	domain 3	CATH (4.3.0)
C	3.40.50.300	Alpha Beta	3-Layer(aba) Sandwich	Rossmann fold	P-loop containing nucleotide triphosphate hydrolases	CATH (4.3.0)
C	1.10.8.10	Mainly Alpha	Orthogonal Bundle	Helicase, Ruva Protein	domain 3	CATH (4.3.0)
C	1.10.8.60	Mainly Alpha	Orthogonal Bundle	Helicase, Ruva Protein	domain 3	CATH (4.3.0)
E	3.40.50.300	Alpha Beta	3-Layer(aba) Sandwich	Rossmann fold	P-loop containing nucleotide triphosphate hydrolases	CATH (4.3.0)
E	1.10.8.10	Mainly Alpha	Orthogonal Bundle	Helicase, Ruva Protein	domain 3	CATH (4.3.0)
E	1.10.8.60	Mainly Alpha	Orthogonal Bundle	Helicase, Ruva Protein	domain 3	CATH (4.3.0)
F	3.40.50.300	Alpha Beta	3-Layer(aba) Sandwich	Rossmann fold	P-loop containing nucleotide triphosphate hydrolases	CATH (4.3.0)
F	1.10.8.10	Mainly Alpha	Orthogonal Bundle	Helicase, Ruva Protein	domain 3	CATH (4.3.0)
F	1.10.8.60	Mainly Alpha	Orthogonal Bundle	Helicase, Ruva Protein	domain 3	CATH (4.3.0)
S	3.40.50.300	Alpha Beta	3-Layer(aba) Sandwich	Rossmann fold	P-loop containing nucleotide triphosphate hydrolases	CATH (4.3.0)
S	1.10.8.10	Mainly Alpha	Orthogonal Bundle	Helicase, Ruva Protein	domain 3	CATH (4.3.0)
S	1.10.8.60	Mainly Alpha	Orthogonal Bundle	Helicase, Ruva Protein	domain 3	CATH (4.3.0)
T	3.40.50.300	Alpha Beta	3-Layer(aba) Sandwich	Rossmann fold	P-loop containing nucleotide triphosphate hydrolases	CATH (4.3.0)
T	1.10.8.10	Mainly Alpha	Orthogonal Bundle	Helicase, Ruva Protein	domain 3	CATH (4.3.0)
T	1.10.8.60	Mainly Alpha	Orthogonal Bundle	Helicase, Ruva Protein	domain 3	CATH (4.3.0)
V	3.40.50.300	Alpha Beta	3-Layer(aba) Sandwich	Rossmann fold	P-loop containing nucleotide triphosphate hydrolases	CATH (4.3.0)
V	1.10.8.10	Mainly Alpha	Orthogonal Bundle	Helicase, Ruva Protein	domain 3	CATH (4.3.0)
V	1.10.8.60	Mainly Alpha	Orthogonal Bundle	Helicase, Ruva Protein	domain 3	CATH (4.3.0)
W	3.40.50.300	Alpha Beta	3-Layer(aba) Sandwich	Rossmann fold	P-loop containing nucleotide triphosphate hydrolases	CATH (4.3.0)
W	1.10.8.10	Mainly Alpha	Orthogonal Bundle	Helicase, Ruva Protein	domain 3	CATH (4.3.0)
W	1.10.8.60	Mainly Alpha	Orthogonal Bundle	Helicase, Ruva Protein	domain 3	CATH (4.3.0)
X	3.40.50.300	Alpha Beta	3-Layer(aba) Sandwich	Rossmann fold	P-loop containing nucleotide triphosphate hydrolases	CATH (4.3.0)
X	1.10.8.10	Mainly Alpha	Orthogonal Bundle	Helicase, Ruva Protein	domain 3	CATH (4.3.0)
X	1.10.8.60	Mainly Alpha	Orthogonal Bundle	Helicase, Ruva Protein	domain 3	CATH (4.3.0)
U	3.40.50.300	Alpha Beta	3-Layer(aba) Sandwich	Rossmann fold	P-loop containing nucleotide triphosphate hydrolases	CATH (4.3.0)
U	1.10.8.10	Mainly Alpha	Orthogonal Bundle	Helicase, Ruva Protein	domain 3	CATH (4.3.0)
U	1.10.8.60	Mainly Alpha	Orthogonal Bundle	Helicase, Ruva Protein	domain 3	CATH (4.3.0)
D	3.40.50.300	Alpha Beta	3-Layer(aba) Sandwich	Rossmann fold	P-loop containing nucleotide triphosphate hydrolases	CATH (4.3.0)
D	1.10.8.10	Mainly Alpha	Orthogonal Bundle	Helicase, Ruva Protein	domain 3	CATH (4.3.0)
D	1.10.8.60	Mainly Alpha	Orthogonal Bundle	Helicase, Ruva Protein	domain 3	CATH (4.3.0)
G	3.60.20.10	Alpha Beta	4-Layer Sandwich	Glutamine Phosphoribosylpyrophosphate, subunit 1, domain 1	Aminohydrolase, N-terminal nucleophile (Ntn) domain	CATH (4.3.0)
H	3.60.20.10	Alpha Beta	4-Layer Sandwich	Glutamine Phosphoribosylpyrophosphate, subunit 1, domain 1	Aminohydrolase, N-terminal nucleophile (Ntn) domain	CATH (4.3.0)
I	3.60.20.10	Alpha Beta	4-Layer Sandwich	Glutamine Phosphoribosylpyrophosphate, subunit 1, domain 1	Aminohydrolase, N-terminal nucleophile (Ntn) domain	CATH (4.3.0)
L	3.60.20.10	Alpha Beta	4-Layer Sandwich	Glutamine Phosphoribosylpyrophosphate, subunit 1, domain 1	Aminohydrolase, N-terminal nucleophile (Ntn) domain	CATH (4.3.0)
M	3.60.20.10	Alpha Beta	4-Layer Sandwich	Glutamine Phosphoribosylpyrophosphate, subunit 1, domain 1	Aminohydrolase, N-terminal nucleophile (Ntn) domain	CATH (4.3.0)
P	3.60.20.10	Alpha Beta	4-Layer Sandwich	Glutamine Phosphoribosylpyrophosphate, subunit 1, domain 1	Aminohydrolase, N-terminal nucleophile (Ntn) domain	CATH (4.3.0)
Q	3.60.20.10	Alpha Beta	4-Layer Sandwich	Glutamine Phosphoribosylpyrophosphate, subunit 1, domain 1	Aminohydrolase, N-terminal nucleophile (Ntn) domain	CATH (4.3.0)
R	3.60.20.10	Alpha Beta	4-Layer Sandwich	Glutamine Phosphoribosylpyrophosphate, subunit 1, domain 1	Aminohydrolase, N-terminal nucleophile (Ntn) domain	CATH (4.3.0)
O	3.60.20.10	Alpha Beta	4-Layer Sandwich	Glutamine Phosphoribosylpyrophosphate, subunit 1, domain 1	Aminohydrolase, N-terminal nucleophile (Ntn) domain	CATH (4.3.0)
N	3.60.20.10	Alpha Beta	4-Layer Sandwich	Glutamine Phosphoribosylpyrophosphate, subunit 1, domain 1	Aminohydrolase, N-terminal nucleophile (Ntn) domain	CATH (4.3.0)
K	3.60.20.10	Alpha Beta	4-Layer Sandwich	Glutamine Phosphoribosylpyrophosphate, subunit 1, domain 1	Aminohydrolase, N-terminal nucleophile (Ntn) domain	CATH (4.3.0)
J	3.60.20.10	Alpha Beta	4-Layer Sandwich	Glutamine Phosphoribosylpyrophosphate, subunit 1, domain 1	Aminohydrolase, N-terminal nucleophile (Ntn) domain	CATH (4.3.0)

Protein Family Annotation Pfam Database Homepage

Chains	Accession	Name	Description	Comments	Source
A, B, C, D, E A, B, C, D, E, F, S, T, U, V, W, X	PF00004	ATPase family associated with various cellular activities (AAA) (AAA)	ATPase family associated with various cellular activities (AAA)	AAA family proteins often perform chaperone-like functions that assist in the assembly, operation, or disassembly of protein complexes [2].	Domain
G, H, I, J, K G, H, I, J, K, L, M, N, O, P, Q, R	PF00227	Proteasome subunit (Proteasome)	Proteasome subunit	The proteasome is a multisubunit structure that degrades proteins. Protein degradation is an essential component of regulation because proteins can become misfolded, damaged, or unnecessary. Proteasomes and their homologues vary greatly in complexity ...	The proteasome is a multisubunit structure that degrades proteins. Protein degradation is an essential component of regulation because proteins can become misfolded, damaged, or unnecessary. Proteasomes and their homologues vary greatly in complexity: from HslV (heat shock locus v), which is encoded by 1 gene in bacteria, to the eukaryotic 20S proteasome, which is encoded by more than 14 genes [1]. Recently evidence of two novel groups of bacterial proteasomes was proposed. The first is Anbu, which is sparsely distributed among cyanobacteria and proteobacteria [1]. The second is call beta-proteobacteria proteasome homologue (BPH) [1].	Domain

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
A, B, C, D, E A, B, C, D, E, F, S, T, U, V, W, X	ATP-dependent hsl protease ATP-binding subunit hslU	binding adenyl ribonucleotide binding nucleotide binding purine ribonucleotide binding purine ribonucleoside triphosphate binding nucleoside phosphate binding ion binding purine nucleotide binding anion binding adenyl nucleotide binding ATP binding heterocyclic compound binding carbohydrate derivative binding ribonucleotide binding binding adenyl ribonucleotide binding nucleotide binding purine ribonucleotide binding purine ribonucleoside triphosphate binding nucleoside phosphate binding ion binding purine nucleotide binding anion binding adenyl nucleotide binding ATP binding heterocyclic compound binding carbohydrate derivative binding ribonucleotide binding small molecule binding peptidase activity catalytic activity, acting on a protein hydrolase activity catalytic activity pyrophosphatase activity ATP hydrolysis activity ribonucleoside triphosphate phosphatase activity hydrolase activity, acting on acid anhydrides, in phosphorus-containing anhydrides hydrolase activity, acting on acid anhydrides ATP-dependent activity polypeptide conformation or assembly isomerase activity isomerase activity proteasome-activating activity macromolecular conformation isomerase activity	cellular process protein unfolding	protein-containing complex intracellular anatomical structure catalytic complex peptidase complex cytosolic proteasome complex HslUV protease complex cellular anatomical structure proteasome complex endopeptidase complex cytoplasm cytosol intracellular protein-containing complex
G, H, I, J, K G, H, I, J, K, L, M, N, O, P, Q, R	ATP-dependent protease hslV	peptidase activity catalytic activity, acting on a protein threonine-type peptidase activity hydrolase activity catalytic activity endopeptidase activity threonine-type endopeptidase activity cation binding ion binding binding metal ion binding small molecule binding	-	cellular anatomical structure intracellular anatomical structure cytoplasm protein-containing complex catalytic complex peptidase complex cytosolic proteasome complex HslUV protease complex proteasome complex endopeptidase complex cytosol intracellular protein-containing complex proteasome core complex

InterPro: Protein Family Classification InterPro Database Homepage

Chains	Accession	Name	Type
A, B, C, D, E A, B, C, D, E, F, S, T, U, V, W, X	IPR050052	ATP-dependent Clp protease ATP-binding subunit ClpX	Family
A, B, C, D, E A, B, C, D, E, F, S, T, U, V, W, X	IPR003593	AAA+ ATPase domain	Domain
A, B, C, D, E A, B, C, D, E, F, S, T, U, V, W, X	IPR003959	ATPase, AAA-type, core	Domain
A, B, C, D, E A, B, C, D, E, F, S, T, U, V, W, X	IPR004491	Heat shock protein HslU	Family
A, B, C, D, E A, B, C, D, E, F, S, T, U, V, W, X	IPR019489	Clp ATPase, C-terminal	Domain
A, B, C, D, E A, B, C, D, E, F, S, T, U, V, W, X	IPR027417	P-loop containing nucleoside triphosphate hydrolase	Homologous Superfamily
G, H, I, J, K G, H, I, J, K, L, M, N, O, P, Q, R	IPR023333	Proteasome B-type subunit	Family
G, H, I, J, K G, H, I, J, K, L, M, N, O, P, Q, R	IPR029055	Nucleophile aminohydrolases, N-terminal	Homologous Superfamily
G, H, I, J, K G, H, I, J, K, L, M, N, O, P, Q, R	IPR001353	Proteasome, subunit alpha/beta	Family
G, H, I, J, K G, H, I, J, K, L, M, N, O, P, Q, R	IPR022281	ATP-dependent protease subunit HslV	Family