Annotations: 6QPW

Domain Annotation: SCOP2 Classification SCOP2 Database Homepage

Chains	Type	Family Name	Domain Identifier	Family Identifier	Provenance Source (Version)
B	SCOP2B Superfamily	Winged helix DNA-binding domain	8003274	3000034	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	SMC_N	e6qpwA1	A: a/b three-layered sandwiches	X: P-loop domains-like	H: P-loop domains-related	T: P-loop containing nucleoside triphosphate hydrolases	F: SMC_N	ECOD (1.6)
B	Rad21_Rec8	e6qpwB1	A: alpha arrays	X: HTH	H: HTH	T: winged	F: Rad21_Rec8	ECOD (1.6)
C	KOG0964	e6qpwC1	A: alpha bundles	X: Helical domain in structural maintenance of chromosomes protein 3 (From Topology)	H: Helical domain in structural maintenance of chromosomes protein 3 (From Topology)	T: Helical domain in structural maintenance of chromosomes protein 3	F: KOG0964	ECOD (1.6)
C	SMC_N	e6qpwC2	A: a/b three-layered sandwiches	X: P-loop domains-like	H: P-loop domains-related	T: P-loop containing nucleoside triphosphate hydrolases	F: SMC_N	ECOD (1.6)

Domain Annotation: CATH CATH Database Homepage

Chain	Domain	Class	Architecture	Topology	Homology	Provenance Source (Version)
B	1.10.10.580	Mainly Alpha	Orthogonal Bundle	Arc Repressor Mutant, subunit A	Structural maintenance of chromosome 1. Chain E	CATH (utative)

Protein Family Annotation Pfam Database Homepage

Chains	Accession	Name	Description	Comments	Source
A	PF02463	RecF/RecN/SMC N terminal domain (SMC_N)	RecF/RecN/SMC N terminal domain	This domain is found at the N terminus of SMC proteins. The SMC (structural maintenance of chromosomes) superfamily proteins have ATP-binding domains at the N- and C-termini, and two extended coiled-coil domains separated by a hinge in the middle. T ...	This domain is found at the N terminus of SMC proteins. The SMC (structural maintenance of chromosomes) superfamily proteins have ATP-binding domains at the N- and C-termini, and two extended coiled-coil domains separated by a hinge in the middle. The eukaryotic SMC proteins form two kind of heterodimers: the SMC1/SMC3 and the SMC2/SMC4 types. These heterodimers constitute an essential part of higher order complexes, which are involved in chromatin and DNA dynamics [1]. This family also includes the RecF and RecN proteins that are involved in DNA metabolism and recombination.	Domain
B	PF04824	Conserved region of Rad21 / Rec8 like protein (Rad21_Rec8)	Conserved region of Rad21 / Rec8 like protein	-	Family
C	PF02463	RecF/RecN/SMC N terminal domain (SMC_N)	RecF/RecN/SMC N terminal domain	This domain is found at the N terminus of SMC proteins. The SMC (structural maintenance of chromosomes) superfamily proteins have ATP-binding domains at the N- and C-termini, and two extended coiled-coil domains separated by a hinge in the middle. T ...	This domain is found at the N terminus of SMC proteins. The SMC (structural maintenance of chromosomes) superfamily proteins have ATP-binding domains at the N- and C-termini, and two extended coiled-coil domains separated by a hinge in the middle. The eukaryotic SMC proteins form two kind of heterodimers: the SMC1/SMC3 and the SMC2/SMC4 types. These heterodimers constitute an essential part of higher order complexes, which are involved in chromatin and DNA dynamics [1]. This family also includes the RecF and RecN proteins that are involved in DNA metabolism and recombination.	Domain
D [auth E]	PF02463	RecF/RecN/SMC N terminal domain (SMC_N)	RecF/RecN/SMC N terminal domain	This domain is found at the N terminus of SMC proteins. The SMC (structural maintenance of chromosomes) superfamily proteins have ATP-binding domains at the N- and C-termini, and two extended coiled-coil domains separated by a hinge in the middle. T ...	This domain is found at the N terminus of SMC proteins. The SMC (structural maintenance of chromosomes) superfamily proteins have ATP-binding domains at the N- and C-termini, and two extended coiled-coil domains separated by a hinge in the middle. The eukaryotic SMC proteins form two kind of heterodimers: the SMC1/SMC3 and the SMC2/SMC4 types. These heterodimers constitute an essential part of higher order complexes, which are involved in chromatin and DNA dynamics [1]. This family also includes the RecF and RecN proteins that are involved in DNA metabolism and recombination.	Domain

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
A	Structural maintenance of chromosomes protein,Structural maintenance of chromosomes protein	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 pyrophosphatase activity ATP hydrolysis activity ribonucleoside triphosphate phosphatase activity hydrolase activity, acting on acid anhydrides, in phosphorus-containing anhydrides hydrolase activity hydrolase activity, acting on acid anhydrides catalytic activity ATP-dependent activity	cellular component organization organelle organization chromosome organization sister chromatid cohesion cellular process cellular component organization or biogenesis cell cycle cell cycle process cell division	intracellular organelle protein-containing complex intracellular anatomical structure organelle intracellular non-membrane-bounded organelle chromosome cellular anatomical entity non-membrane-bounded organelle cohesin complex membrane-bounded organelle nucleus intracellular membrane-bounded organelle
B	Sister chromatid cohesion protein 1	protein binding binding kinase binding enzyme binding protein kinase binding protein-containing complex binding chromatin binding	cellular response to stimulus cellular response to stress response to stimulus DNA damage response response to stress cellular process double-strand break repair DNA recombination primary metabolic process DNA metabolic process nucleic acid metabolic process nucleobase-containing compound metabolic process organic cyclic compound metabolic process organic substance metabolic process cellular response to stimulus cellular response to stress response to stimulus DNA damage response response to stress cellular process double-strand break repair DNA recombination primary metabolic process DNA metabolic process nucleic acid metabolic process nucleobase-containing compound metabolic process organic cyclic compound metabolic process organic substance metabolic process replication-born double-strand break repair via sister chromatid exchange recombinational repair metabolic process macromolecule metabolic process double-strand break repair via homologous recombination DNA repair protein acetylation organonitrogen compound metabolic process macromolecule modification protein metabolic process protein modification process protein acylation cell division cellular component organization organelle organization mitotic sister chromatid cohesion chromosome organization sister chromatid cohesion cellular component organization or biogenesis cell cycle cell cycle process apoptotic process cell death programmed cell death mitotic nuclear division mitotic chromosome condensation organelle fission sister chromatid segregation mitotic cell cycle nuclear division mitotic cell cycle process chromosome condensation mitotic sister chromatid segregation nuclear chromosome segregation chromosome segregation establishment of mitotic sister chromatid cohesion establishment of sister chromatid cohesion	membrane-bounded organelle intracellular organelle intracellular anatomical structure mitochondrion organelle cytoplasm cellular anatomical entity intracellular membrane-bounded organelle condensed nuclear chromosome nucleus membrane-enclosed lumen nuclear chromosome chromosome intracellular organelle lumen membrane-bounded organelle intracellular organelle intracellular anatomical structure mitochondrion organelle cytoplasm cellular anatomical entity intracellular membrane-bounded organelle condensed nuclear chromosome nucleus membrane-enclosed lumen nuclear chromosome chromosome intracellular organelle lumen organelle lumen intracellular non-membrane-bounded organelle condensed chromosome non-membrane-bounded organelle nuclear lumen chromosome, centromeric region chromosomal region protein-containing complex cohesin complex mitotic cohesin complex
C	Structural maintenance of chromosomes protein 3,Structural maintenance of chromosomes protein 3	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 double-stranded DNA binding nucleic acid binding protein binding kinase binding enzyme binding protein kinase binding cohesin loader activity catalytic activity, acting on DNA catalytic activity, acting on a nucleic acid catalytic activity pyrophosphatase activity ATP hydrolysis activity ribonucleoside triphosphate phosphatase activity hydrolase activity, acting on acid anhydrides, in phosphorus-containing anhydrides hydrolase activity hydrolase activity, acting on acid anhydrides ATP-dependent activity identical protein binding	cellular component organization organelle organization chromosome organization sister chromatid cohesion cellular process cellular component organization or biogenesis cell cycle meiotic sister chromatid cohesion cell cycle process cellular response to stimulus double-strand break repair response to stimulus DNA recombination primary metabolic process cellular component organization organelle organization chromosome organization sister chromatid cohesion cellular process cellular component organization or biogenesis cell cycle meiotic sister chromatid cohesion cell cycle process cellular response to stimulus double-strand break repair response to stimulus DNA recombination primary metabolic process DNA metabolic process nucleic acid metabolic process nucleobase-containing compound metabolic process organic cyclic compound metabolic process organic substance metabolic process replication-born double-strand break repair via sister chromatid exchange cellular response to stress DNA damage response response to stress recombinational repair metabolic process macromolecule metabolic process double-strand break repair via homologous recombination DNA repair homologous recombination sexual reproduction reproductive process meiotic cell cycle process meiosis I meiotic nuclear division reciprocal homologous recombination meiotic cell cycle organelle fission reciprocal meiotic recombination nuclear division meiosis I cell cycle process cell division mitotic sister chromatid cohesion meiotic chromosome segregation synaptonemal complex assembly cellular component biogenesis cellular component assembly synaptonemal complex organization chromosome segregation chromosome organization involved in meiotic cell cycle homologous chromosome pairing at meiosis nuclear chromosome segregation homologous chromosome segregation establishment of meiotic sister chromatid cohesion establishment of sister chromatid cohesion establishment of mitotic sister chromatid cohesion mitotic cell cycle mitotic cell cycle process	intracellular organelle protein-containing complex intracellular anatomical structure organelle intracellular non-membrane-bounded organelle chromosome cellular anatomical entity meiotic cohesin complex non-membrane-bounded organelle cohesin complex mitotic cohesin complex membrane-bounded organelle nucleus intracellular membrane-bounded organelle
D [auth E]	Sister chromatid cohesion protein 1,Structural maintenance of chromosomes protein	protein binding binding kinase binding enzyme binding protein kinase binding protein-containing complex binding chromatin binding adenyl ribonucleotide binding nucleotide binding purine ribonucleotide binding purine ribonucleoside triphosphate binding nucleoside phosphate binding ion binding purine nucleotide binding protein binding binding kinase binding enzyme binding protein kinase binding protein-containing complex binding chromatin 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 pyrophosphatase activity ATP hydrolysis activity ribonucleoside triphosphate phosphatase activity hydrolase activity, acting on acid anhydrides, in phosphorus-containing anhydrides hydrolase activity hydrolase activity, acting on acid anhydrides catalytic activity ATP-dependent activity	cellular response to stimulus cellular response to stress response to stimulus DNA damage response response to stress cellular process double-strand break repair DNA recombination primary metabolic process DNA metabolic process nucleic acid metabolic process nucleobase-containing compound metabolic process organic cyclic compound metabolic process organic substance metabolic process cellular response to stimulus cellular response to stress response to stimulus DNA damage response response to stress cellular process double-strand break repair DNA recombination primary metabolic process DNA metabolic process nucleic acid metabolic process nucleobase-containing compound metabolic process organic cyclic compound metabolic process organic substance metabolic process replication-born double-strand break repair via sister chromatid exchange recombinational repair metabolic process macromolecule metabolic process double-strand break repair via homologous recombination DNA repair protein acetylation organonitrogen compound metabolic process macromolecule modification protein metabolic process protein modification process protein acylation cell division cellular component organization organelle organization mitotic sister chromatid cohesion chromosome organization sister chromatid cohesion cellular component organization or biogenesis cell cycle cell cycle process apoptotic process cell death programmed cell death mitotic nuclear division mitotic chromosome condensation organelle fission sister chromatid segregation mitotic cell cycle nuclear division mitotic cell cycle process chromosome condensation mitotic sister chromatid segregation nuclear chromosome segregation chromosome segregation establishment of mitotic sister chromatid cohesion establishment of sister chromatid cohesion	membrane-bounded organelle intracellular organelle intracellular anatomical structure mitochondrion organelle cytoplasm cellular anatomical entity intracellular membrane-bounded organelle condensed nuclear chromosome nucleus membrane-enclosed lumen nuclear chromosome chromosome intracellular organelle lumen membrane-bounded organelle intracellular organelle intracellular anatomical structure mitochondrion organelle cytoplasm cellular anatomical entity intracellular membrane-bounded organelle condensed nuclear chromosome nucleus membrane-enclosed lumen nuclear chromosome chromosome intracellular organelle lumen organelle lumen intracellular non-membrane-bounded organelle condensed chromosome non-membrane-bounded organelle nuclear lumen chromosome, centromeric region chromosomal region protein-containing complex cohesin complex mitotic cohesin complex

InterPro: Protein Family Classification InterPro Database Homepage

Chains	Accession	Name	Type
A	IPR028468	Smc1, ATP-binding cassette domain	Domain
A	IPR010935	SMCs flexible hinge	Domain
A	IPR036277	SMCs flexible hinge superfamily	Homologous Superfamily
A	IPR003395	RecF/RecN/SMC, N-terminal	Domain
A	IPR024704	Structural maintenance of chromosomes protein	Family
A	IPR027417	P-loop containing nucleoside triphosphate hydrolase	Homologous Superfamily
B	IPR039781	Rad21/Rec8-like protein	Family
B	IPR006910	Rad21/Rec8-like protein, N-terminal	Domain
B	IPR036390	Winged helix DNA-binding domain superfamily	Homologous Superfamily
B	IPR023093	ScpA-like, C-terminal	Homologous Superfamily
B	IPR006909	Rad21/Rec8-like protein, C-terminal, eukaryotic	Domain
C	IPR041741	Structural maintenance of chromosomes 3, ABC domain, eukaryotic	Domain
C	IPR010935	SMCs flexible hinge	Domain
C	IPR036277	SMCs flexible hinge superfamily	Homologous Superfamily
C	IPR003395	RecF/RecN/SMC, N-terminal	Domain
C	IPR024704	Structural maintenance of chromosomes protein	Family
C	IPR027417	P-loop containing nucleoside triphosphate hydrolase	Homologous Superfamily
D [auth E]	IPR039781	Rad21/Rec8-like protein	Family
D [auth E]	IPR006910	Rad21/Rec8-like protein, N-terminal	Domain
D [auth E]	IPR036390	Winged helix DNA-binding domain superfamily	Homologous Superfamily
D [auth E]	IPR023093	ScpA-like, C-terminal	Homologous Superfamily
D [auth E]	IPR006909	Rad21/Rec8-like protein, C-terminal, eukaryotic	Domain
D [auth E]	IPR028468	Smc1, ATP-binding cassette domain	Domain
D [auth E]	IPR010935	SMCs flexible hinge	Domain
D [auth E]	IPR036277	SMCs flexible hinge superfamily	Homologous Superfamily
D [auth E]	IPR003395	RecF/RecN/SMC, N-terminal	Domain
D [auth E]	IPR024704	Structural maintenance of chromosomes protein	Family
D [auth E]	IPR027417	P-loop containing nucleoside triphosphate hydrolase	Homologous Superfamily