7NZ4

Cryo-EM structure of the MukBEF dimer

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)
E [auth C1]	PF03882	e7nz4C12	A: alpha arrays	X: HTH	H: HTH	T: winged	F: PF03882	ECOD (1.6)
E [auth C1]	PF17193	e7nz4C13	A: alpha arrays	X: HTH	H: HTH	T: winged	F: PF17193	ECOD (1.6)
E [auth C1]	PF17192,PF17193	e7nz4C11	A: alpha bundles	X: STAT-like	H: MukF C-terminal domain-like (From Topology)	T: MukF C-terminal domain-like	F: PF17192,PF17193	ECOD (1.6)
F [auth D1]	PF03882	e7nz4D12	A: alpha arrays	X: HTH	H: HTH	T: winged	F: PF03882	ECOD (1.6)
F [auth D1]	PF17193	e7nz4D13	A: alpha arrays	X: HTH	H: HTH	T: winged	F: PF17193	ECOD (1.6)
F [auth D1]	PF17192,PF17193	e7nz4D11	A: alpha bundles	X: STAT-like	H: MukF C-terminal domain-like (From Topology)	T: MukF C-terminal domain-like	F: PF17192,PF17193	ECOD (1.6)
I [auth F1]	PF04288	e7nz4F12	A: alpha arrays	X: HTH	H: HTH	T: winged	F: PF04288	ECOD (1.6)
I [auth F1]	PF04288	e7nz4F11	A: a+b two layers	X: Chromosome partition protein mukE N-terminal domain (From Topology)	H: Chromosome partition protein mukE N-terminal domain (From Topology)	T: Chromosome partition protein mukE N-terminal domain	F: PF04288	ECOD (1.6)
G [auth E1]	PF04288	e7nz4E12	A: alpha arrays	X: HTH	H: HTH	T: winged	F: PF04288	ECOD (1.6)
G [auth E1]	PF04288	e7nz4E11	A: a+b two layers	X: Chromosome partition protein mukE N-terminal domain (From Topology)	H: Chromosome partition protein mukE N-terminal domain (From Topology)	T: Chromosome partition protein mukE N-terminal domain	F: PF04288	ECOD (1.6)
H [auth E2]	PF04288	e7nz4E21	A: alpha arrays	X: HTH	H: HTH	T: winged	F: PF04288	ECOD (1.6)
H [auth E2]	PF04288	e7nz4E22	A: a+b two layers	X: Chromosome partition protein mukE N-terminal domain (From Topology)	H: Chromosome partition protein mukE N-terminal domain (From Topology)	T: Chromosome partition protein mukE N-terminal domain	F: PF04288	ECOD (1.6)
J [auth F2]	PF04288	e7nz4F22	A: alpha arrays	X: HTH	H: HTH	T: winged	F: PF04288	ECOD (1.6)
J [auth F2]	PF04288	e7nz4F21	A: a+b two layers	X: Chromosome partition protein mukE N-terminal domain (From Topology)	H: Chromosome partition protein mukE N-terminal domain (From Topology)	T: Chromosome partition protein mukE N-terminal domain	F: PF04288	ECOD (1.6)
K [auth G1]	PF00550	e7nz4G11	A: alpha bundles	X: ACP-like	H: Acyl-carrier protein (ACP) (From Topology)	T: Acyl-carrier protein (ACP)	F: PF00550	ECOD (1.6)
L [auth G2]	PF00550	e7nz4G21	A: alpha bundles	X: ACP-like	H: Acyl-carrier protein (ACP) (From Topology)	T: Acyl-carrier protein (ACP)	F: PF00550	ECOD (1.6)
M [auth H1]	PF00550	e7nz4H11	A: alpha bundles	X: ACP-like	H: Acyl-carrier protein (ACP) (From Topology)	T: Acyl-carrier protein (ACP)	F: PF00550	ECOD (1.6)
N [auth H2]	PF00550	e7nz4H21	A: alpha bundles	X: ACP-like	H: Acyl-carrier protein (ACP) (From Topology)	T: Acyl-carrier protein (ACP)	F: PF00550	ECOD (1.6)

Protein Family Annotation Pfam Database Homepage

Chains	Accession	Name	Description	Comments	Source
A [auth A1], B [auth A2], C [auth B1], D [auth B2]	PF13558	SbcC/RAD50-like, Walker B motif (SbcC_Walker_B)	SbcC/RAD50-like, Walker B motif	This entry represents the Walker B domain of RAD50 from eukaryotes and the prokaryotic homologue SbcCD complex subunit C. RAD50-ATPase forms a complex with Mre11-nuclease that detects and processes diverse and obstructed DNA ends. This domain is sepa ...	This entry represents the Walker B domain of RAD50 from eukaryotes and the prokaryotic homologue SbcCD complex subunit C. RAD50-ATPase forms a complex with Mre11-nuclease that detects and processes diverse and obstructed DNA ends. This domain is separated of the Walker A domain by a long coiled-coil domain and forms the nucleotide-binding domain (NBD) when the coiled coils fold back on themselves and bring together Walker A and B domains [1,2,3,4]. Two RAD50-NBDs forms heterotetramers with a Mre11 nuclease dimer that assemble as catalytic head module that binds and cleaves DNA in an ATP-dependent reaction. Through secondary structural analysis, it has been suggested that there is a wide structural conservation in the Rad50/SMC protein family as seen in structural similarities between RAD50's hook and ABC-ATPase MukB's elbow region [4].	Domain
A [auth A1], B [auth A2], C [auth B1], D [auth B2]	PF16330	MukB hinge domain (MukB_hinge)	MukB hinge domain	The hinge domain of chromosome partition protein MukB is responsible for dimerisation and is also involved in protein-DNA interactions and conformational flexibility [1].	Domain
A [auth A1], B [auth A2], C [auth B1], D [auth B2]	PF04310	MukB N-terminal (MukB)	MukB N-terminal	This family represents the N-terminal region of MukB, one of a group of bacterial proteins essential for the movement of nucleoids from mid-cell towards the cell quarters (i.e. chromosome partitioning). The structure of the N-terminal domain consist ...	This family represents the N-terminal region of MukB, one of a group of bacterial proteins essential for the movement of nucleoids from mid-cell towards the cell quarters (i.e. chromosome partitioning). The structure of the N-terminal domain consists of an antiparallel six-stranded beta sheet surrounded by one helix on one side and by five helices on the other side [1]. It contains an exposed Walker A loop in an unexpected helix-loop-helix motif (in other proteins, Walker A motifs generally adopt a P loop conformation as part of a strand-loop-helix motif embedded in a conserved topology of alternating helices and (parallel) beta strands)[1].	Domain
E [auth C1], F [auth D1]	PF03882	MukF winged-helix domain (KicB)	MukF winged-helix domain	The kicA and kicB genes are found upstream of mukB. It has been suggested that the kicB gene encodes a killing factor and the kicA gene codes for a protein that suppresses the killing function of the kicB gene product [1]. It was also demonstrated th ...	The kicA and kicB genes are found upstream of mukB. It has been suggested that the kicB gene encodes a killing factor and the kicA gene codes for a protein that suppresses the killing function of the kicB gene product [1]. It was also demonstrated that KicA and KicB can function as a post-segregational killing system, when the genes are transferred from the E. coli chromosome onto a plasmid [1].	Domain
E [auth C1], F [auth D1]	PF17193	MukF C-terminal domain (MukF_C)	MukF C-terminal domain	This presumed domain is found at the C-terminus of the MukF protein.	Domain
E [auth C1], F [auth D1]	PF17192	MukF middle domain (MukF_M)	MukF middle domain	The kicA and kicB genes are found upstream of mukB. It has been suggested that the kicB gene encodes a killing factor and the kicA gene codes for a protein that suppresses the killing function of the kicB gene product [1]. It was also demonstrated th ...	The kicA and kicB genes are found upstream of mukB. It has been suggested that the kicB gene encodes a killing factor and the kicA gene codes for a protein that suppresses the killing function of the kicB gene product [1]. It was also demonstrated that KicA and KicB can function as a post-segregational killing system, when the genes are transferred from the E. coli chromosome onto a plasmid [1].	Domain
G [auth E1], H [auth E2], I [auth F1], J [auth F2]	PF04288	MukE-like family (MukE)	MukE-like family	-	Family

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
A [auth A1], B [auth A2], C [auth B1], D [auth B2]	Chromosome partition protein MukB	binding adenyl ribonucleotide binding nucleotide binding purine ribonucleotide binding purine ribonucleoside triphosphate binding nucleoside phosphate binding ion binding purine nucleotide binding organic cyclic compound binding anion binding adenyl nucleotide binding ATP binding heterocyclic compound binding carbohydrate derivative binding binding adenyl ribonucleotide binding nucleotide binding purine ribonucleotide binding purine ribonucleoside triphosphate binding nucleoside phosphate binding ion binding purine nucleotide binding organic cyclic compound binding anion binding adenyl nucleotide binding ATP binding heterocyclic compound binding carbohydrate derivative binding ribonucleotide binding small molecule binding DNA binding nucleic acid binding	nucleobase-containing compound metabolic process organic cyclic compound metabolic process DNA replication organic substance metabolic process metabolic process primary metabolic process DNA metabolic process macromolecule metabolic process nucleic acid metabolic process cellular process cell division cell cycle chromosome segregation cell cycle process nucleobase-containing compound metabolic process organic cyclic compound metabolic process DNA replication organic substance metabolic process metabolic process primary metabolic process DNA metabolic process macromolecule metabolic process nucleic acid metabolic process cellular process cell division cell cycle chromosome segregation cell cycle process cellular component organization organelle organization chromosome condensation chromosome organization cellular component organization or biogenesis	nucleoid cellular anatomical entity intracellular anatomical structure cytoplasm
E [auth C1], F [auth D1]	Chromosome partition protein MukF	cation binding ion binding binding calcium ion binding metal ion binding small molecule binding	nucleobase-containing compound metabolic process organic cyclic compound metabolic process DNA replication organic substance metabolic process metabolic process primary metabolic process DNA metabolic process macromolecule metabolic process nucleic acid metabolic process cellular process cell division cell cycle chromosome segregation cell cycle process nucleobase-containing compound metabolic process organic cyclic compound metabolic process DNA replication organic substance metabolic process metabolic process primary metabolic process DNA metabolic process macromolecule metabolic process nucleic acid metabolic process cellular process cell division cell cycle chromosome segregation cell cycle process cellular component organization organelle organization chromosome condensation chromosome organization cellular component organization or biogenesis	nucleoid cellular anatomical entity intracellular anatomical structure cytoplasm
G [auth E1], H [auth E2], I [auth F1], J [auth F2]	Chromosome partition protein MukE	-	nucleobase-containing compound metabolic process organic cyclic compound metabolic process DNA replication organic substance metabolic process metabolic process primary metabolic process DNA metabolic process macromolecule metabolic process nucleic acid metabolic process cellular process cell division cell cycle chromosome segregation cell cycle process nucleobase-containing compound metabolic process organic cyclic compound metabolic process DNA replication organic substance metabolic process metabolic process primary metabolic process DNA metabolic process macromolecule metabolic process nucleic acid metabolic process cellular process cell division cell cycle chromosome segregation cell cycle process cellular component organization organelle organization chromosome condensation chromosome organization cellular component organization or biogenesis	nucleoid cellular anatomical entity intracellular anatomical structure cytoplasm
K [auth G1], L [auth G2], M [auth H1], N [auth H2]	Acyl carrier protein	-	-	-

InterPro: Protein Family Classification InterPro Database Homepage

Chains	Accession	Name	Type
A [auth A1], B [auth A2], C [auth B1], D [auth B2]	IPR042501	MukB, hinge domain superfamily	Homologous Superfamily
A [auth A1], B [auth A2], C [auth B1], D [auth B2]	IPR007406	MukB, N-terminal domain	Domain
A [auth A1], B [auth A2], C [auth B1], D [auth B2]	IPR032520	MukB, hinge domain	Domain
A [auth A1], B [auth A2], C [auth B1], D [auth B2]	IPR012090	Chromosome partition protein MukB	Family
A [auth A1], B [auth A2], C [auth B1], D [auth B2]	IPR027417	P-loop containing nucleoside triphosphate hydrolase	Homologous Superfamily
E [auth C1], F [auth D1]	IPR005582	Chromosome partition protein MukF	Family
E [auth C1], F [auth D1]	IPR036388	Winged helix-like DNA-binding domain superfamily	Homologous Superfamily
E [auth C1], F [auth D1]	IPR036141	MukF, middle domain superfamily	Homologous Superfamily
E [auth C1], F [auth D1]	IPR036390	Winged helix DNA-binding domain superfamily	Homologous Superfamily
E [auth C1], F [auth D1]	IPR033439	Chromosome partition protein MukF, winged-helix domain	Domain
E [auth C1], F [auth D1]	IPR038198	MukF, C-terminal domain superfamily	Homologous Superfamily
E [auth C1], F [auth D1]	IPR033441	Chromosome partition protein MukF, C-terminal domain	Domain
E [auth C1], F [auth D1]	IPR033440	Chromosome partition protein MukF, middle domain	Domain
G [auth E1], H [auth E2], I [auth F1], J [auth F2]	IPR042038	MukE, N-terminal domain	Homologous Superfamily
G [auth E1], H [auth E2], I [auth F1], J [auth F2]	IPR042037	MukE, C-terminal domain	Homologous Superfamily
G [auth E1], H [auth E2], I [auth F1], J [auth F2]	IPR007385	Prokaryotic chromosome segregation/condensation protein MukE	Family

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 R01GM133198.