Annotations: 3L51

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

Chains	Domain Info	Class	Fold	Superfamily	Family	Domain	Species	Provenance Source (Version)
B	d3l51b1	Alpha and beta proteins (a+b)	Smc hinge domain	Smc hinge domain	automated matches	automated matches	mouse (Mus musculus ) [TaxId: 10090 ],	SCOPe (2.08)
B	d3l51b2	Artifacts	Tags	Tags	Tags	C-terminal Tags	mouse (Mus musculus ) [TaxId: 10090 ],	SCOPe (2.08)

Domain Annotation: ECOD Classification ECOD Database Homepage

Chains	Family Name	Domain Identifier	Architecture	Possible Homology	Homology	Topology	Family	Provenance Source (Version)
A	PF06470	e3l51A1	A: a+b duplicates or obligate multimers	X: Smc hinge domain (From Topology)	H: Smc hinge domain (From Topology)	T: Smc hinge domain	F: PF06470	ECOD (1.6)
B	PF06470	e3l51B1	A: a+b duplicates or obligate multimers	X: Smc hinge domain (From Topology)	H: Smc hinge domain (From Topology)	T: Smc hinge domain	F: PF06470	ECOD (1.6)

Protein Family Annotation Pfam Database Homepage

Chains	Accession	Name	Description	Comments	Source
A	PF06470	SMC proteins Flexible Hinge Domain (SMC_hinge)	SMC proteins Flexible Hinge Domain	This family represents the hinge region of the SMC (Structural Maintenance of Chromosomes) family of proteins. The hinge region is responsible for formation of the DNA interacting dimer. It is also possible that the precise structure of it is an esse ...	This family represents the hinge region of the SMC (Structural Maintenance of Chromosomes) family of proteins. The hinge region is responsible for formation of the DNA interacting dimer. It is also possible that the precise structure of it is an essential determinant of the specificity of the DNA-protein interaction ([1]).	Domain
B	PF06470	SMC proteins Flexible Hinge Domain (SMC_hinge)	SMC proteins Flexible Hinge Domain	This family represents the hinge region of the SMC (Structural Maintenance of Chromosomes) family of proteins. The hinge region is responsible for formation of the DNA interacting dimer. It is also possible that the precise structure of it is an esse ...	This family represents the hinge region of the SMC (Structural Maintenance of Chromosomes) family of proteins. The hinge region is responsible for formation of the DNA interacting dimer. It is also possible that the precise structure of it is an essential determinant of the specificity of the DNA-protein interaction ([1]).	Domain

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
A	Structural maintenance of chromosomes protein 2	protein-containing complex binding chromatin 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 protein-containing complex binding chromatin 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 DNA binding single-stranded DNA binding nucleic acid binding	regulation of chromosome segregation regulation of biological process regulation of cellular process regulation of cell cycle process biological regulation positive regulation of biological process positive regulation of cell cycle chromosome separation positive regulation of chromosome separation positive regulation of cell cycle process cellular process regulation of chromosome separation cell cycle regulation of cell cycle regulation of chromosome segregation regulation of biological process regulation of cellular process regulation of cell cycle process biological regulation positive regulation of biological process positive regulation of cell cycle chromosome separation positive regulation of chromosome separation positive regulation of cell cycle process cellular process regulation of chromosome separation cell cycle regulation of cell cycle chromosome segregation positive regulation of cellular process cell cycle process cell division mitotic nuclear division mitotic chromosome condensation organelle fission chromosome organization sister chromatid segregation mitotic cell cycle cellular component organization organelle organization nuclear division mitotic cell cycle process chromosome condensation mitotic sister chromatid segregation nuclear chromosome segregation cellular component organization or biogenesis positive regulation of chromosome segregation positive regulation of organelle organization regulation of cellular component organization positive regulation of cellular component organization regulation of chromosome condensation regulation of chromosome organization regulation of organelle organization positive regulation of chromosome organization positive regulation of chromosome condensation kinetochore organization cellular response to stimulus response to stimulus single strand break repair primary metabolic process DNA metabolic process nucleic acid metabolic process nucleobase-containing compound metabolic process cellular response to stress DNA damage response response to stress metabolic process macromolecule metabolic process DNA repair meiotic chromosome segregation sexual reproduction reproductive process meiotic cell cycle meiotic cell cycle process meiotic nuclear division meiotic chromosome condensation chromosome organization involved in meiotic cell cycle	membrane-bounded organelle intracellular anatomical structure nucleus membrane-enclosed lumen intracellular membrane-bounded organelle cellular anatomical entity nucleolus intracellular organelle lumen intracellular organelle organelle lumen organelle intracellular non-membrane-bounded organelle nuclear lumen non-membrane-bounded organelle membrane-bounded organelle intracellular anatomical structure nucleus membrane-enclosed lumen intracellular membrane-bounded organelle cellular anatomical entity nucleolus intracellular organelle lumen intracellular organelle organelle lumen organelle intracellular non-membrane-bounded organelle nuclear lumen non-membrane-bounded organelle chromosome condensed chromosome condensed nuclear chromosome nuclear chromosome cytoplasm protein-containing complex condensin complex nucleoplasm protein-DNA complex chromatin
B	Structural maintenance of chromosomes protein 4	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 protein-containing complex binding chromatin 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 DNA binding single-stranded DNA binding nucleic acid binding	regulation of chromosome segregation regulation of biological process regulation of cellular process regulation of cell cycle process biological regulation positive regulation of biological process positive regulation of cell cycle chromosome separation positive regulation of chromosome separation positive regulation of cell cycle process cellular process regulation of chromosome separation cell cycle regulation of cell cycle regulation of chromosome segregation regulation of biological process regulation of cellular process regulation of cell cycle process biological regulation positive regulation of biological process positive regulation of cell cycle chromosome separation positive regulation of chromosome separation positive regulation of cell cycle process cellular process regulation of chromosome separation cell cycle regulation of cell cycle chromosome segregation positive regulation of cellular process cell cycle process cellular response to stimulus response to stimulus single strand break repair primary metabolic process DNA metabolic process nucleic acid metabolic process nucleobase-containing compound metabolic process cellular response to stress DNA damage response response to stress metabolic process macromolecule metabolic process DNA repair cell division meiotic chromosome segregation sexual reproduction reproductive process meiotic cell cycle organelle fission meiotic cell cycle process cellular component organization nuclear division organelle organization nuclear chromosome segregation meiotic nuclear division cellular component organization or biogenesis mitotic nuclear division mitotic chromosome condensation chromosome organization sister chromatid segregation mitotic cell cycle mitotic cell cycle process chromosome condensation mitotic sister chromatid segregation positive regulation of chromosome segregation meiotic chromosome condensation chromosome organization involved in meiotic cell cycle positive regulation of organelle organization regulation of cellular component organization positive regulation of cellular component organization regulation of chromosome condensation regulation of chromosome organization regulation of organelle organization positive regulation of chromosome organization positive regulation of chromosome condensation kinetochore organization	membrane-bounded organelle intracellular anatomical structure nucleus membrane-enclosed lumen cellular anatomical entity intracellular membrane-bounded organelle intracellular organelle lumen nuclear speck nuclear body intracellular organelle nucleoplasm organelle lumen organelle nuclear lumen membrane-bounded organelle intracellular anatomical structure nucleus membrane-enclosed lumen cellular anatomical entity intracellular membrane-bounded organelle intracellular organelle lumen nuclear speck nuclear body intracellular organelle nucleoplasm organelle lumen organelle nuclear lumen condensed nuclear chromosome nuclear chromosome chromosome intracellular non-membrane-bounded organelle condensed chromosome non-membrane-bounded organelle cytoplasm cytosol chromosome, centromeric region chromosomal region protein-containing complex condensin complex

InterPro: Protein Family Classification InterPro Database Homepage

Chains	Accession	Name	Type
A	IPR027120	Smc2, ATP-binding cassette domain	Domain
A	IPR027417	P-loop containing nucleoside triphosphate hydrolase	Homologous Superfamily
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
B	IPR010935	SMCs flexible hinge	Domain
B	IPR036277	SMCs flexible hinge superfamily	Homologous Superfamily
B	IPR003395	RecF/RecN/SMC, N-terminal	Domain
B	IPR024704	Structural maintenance of chromosomes protein	Family
B	IPR027417	P-loop containing nucleoside triphosphate hydrolase	Homologous Superfamily

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.