Annotations: 5V1A

Domain Annotation: SCOP2 Classification SCOP2 Database Homepage

Chains	Type	Family Name	Domain Identifier	Family Identifier	Provenance Source (Version)
B [auth A]	SCOP2B Superfamily	RWD domain-like	8103665	3000774	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)
B [auth A]	Csm1	e5v1aA1	A: a+b two layers	X: Kinetochore globular domain-like (From Topology)	H: Kinetochore globular domain-like (From Topology)	T: Kinetochore globular domain-like	F: Csm1	ECOD (1.6)

Domain Annotation: CATH CATH Database Homepage

Chain	Domain	Class	Architecture	Topology	Homology	Provenance Source (Version)
B [auth A]	3.90.1150.80	Alpha Beta	Alpha-Beta Complex	Aspartate Aminotransferase, domain 1		CATH (4.3.0)

Protein Family Annotation Pfam Database Homepage

Chains	Accession	Name	Description	Comments	Source
B [auth A]	PF12539	Chromosome segregation protein Csm1/Pcs1 (Csm1)	Chromosome segregation protein Csm1/Pcs1	-	Family

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
A [auth B]	Ubiquitin-like-specific protease 2	transcription regulator activity transcription elongation factor activity cysteine-type peptidase activity peptidase activity catalytic activity, acting on a protein hydrolase activity catalytic activity deSUMOylase activity ubiquitin-like protein peptidase activity	cellular response to stimulus regulation of cellular process regulation of cell cycle phase transition response to stimulus negative regulation of biological process spindle checkpoint signaling negative regulation of cell cycle regulation of mitotic nuclear division intracellular signal transduction negative regulation of mitotic cell cycle cell communication negative regulation of mitotic sister chromatid segregation negative regulation of chromosome organization negative regulation of cell cycle phase transition cellular response to stimulus regulation of cellular process regulation of cell cycle phase transition response to stimulus negative regulation of biological process spindle checkpoint signaling negative regulation of cell cycle regulation of mitotic nuclear division intracellular signal transduction negative regulation of mitotic cell cycle cell communication negative regulation of mitotic sister chromatid segregation negative regulation of chromosome organization negative regulation of cell cycle phase transition mitotic spindle checkpoint signaling signal transduction cell cycle mitotic sister chromatid separation chromosome segregation negative regulation of sister chromatid segregation mitotic spindle assembly checkpoint signaling regulation of biological process negative regulation of cellular component organization regulation of cell cycle process sister chromatid segregation regulation of chromosome organization regulation of organelle organization regulation of mitotic cell cycle phase transition regulation of mitotic sister chromatid segregation mitotic cell cycle process regulation of chromosome separation negative regulation of mitotic nuclear division regulation of chromosome segregation regulation of cellular component organization regulation of mitotic sister chromatid separation regulation of metaphase/anaphase transition of cell cycle signaling spindle assembly checkpoint signaling cell cycle phase transition regulation of mitotic metaphase/anaphase transition mitotic cell cycle cellular component organization regulation of mitotic cell cycle negative regulation of cellular process mitotic sister chromatid segregation negative regulation of mitotic metaphase/anaphase transition cellular component organization or biogenesis regulation of cell cycle negative regulation of chromosome separation cell cycle process mitotic nuclear division negative regulation of mitotic cell cycle phase transition organelle fission biological regulation chromosome organization negative regulation of cell cycle process cell cycle checkpoint signaling mitotic cell cycle checkpoint signaling organelle organization nuclear division negative regulation of chromosome segregation chromosome separation negative regulation of organelle organization negative regulation of nuclear division regulation of sister chromatid segregation negative regulation of mitotic sister chromatid separation regulation of nuclear division negative regulation of metaphase/anaphase transition of cell cycle nuclear chromosome segregation metaphase/anaphase transition of mitotic cell cycle cellular process metaphase/anaphase transition of cell cycle mitotic cell cycle phase transition plasmid maintenance peptidyl-lysine modification protein desumoylation primary metabolic process protein modification by small protein removal macromolecule modification peptidyl-amino acid modification metabolic process protein metabolic process macromolecule metabolic process post-translational protein modification protein modification process protein modification by small protein conjugation or removal proteolysis chromosome condensation	intracellular organelle intracellular anatomical structure organelle intracellular non-membrane-bounded organelle chromatin chromosome cellular anatomical entity non-membrane-bounded organelle membrane-bounded organelle nucleus intracellular membrane-bounded organelle
B [auth A]	Monopolin complex subunit CSM1	identical protein binding protein binding binding	chromosome organization sister chromatid cohesion meiotic sister chromatid cohesion, centromeric cellular component organization centromeric sister chromatid cohesion organelle organization cellular process cellular component organization or biogenesis cell cycle meiotic sister chromatid cohesion cell cycle process protein localization cellular localization protein localization to nucleolar rDNA repeats chromosome organization sister chromatid cohesion meiotic sister chromatid cohesion, centromeric cellular component organization centromeric sister chromatid cohesion organelle organization cellular process cellular component organization or biogenesis cell cycle meiotic sister chromatid cohesion cell cycle process protein localization cellular localization protein localization to nucleolar rDNA repeats localization nucleus organization protein localization to chromosome nucleolus organization protein localization to organelle cellular macromolecule localization macromolecule localization meiotic chromosome segregation sexual reproduction reproductive process meiotic cell cycle organelle fission meiotic cell cycle process nuclear division meiosis I meiosis I cell cycle process nuclear chromosome segregation meiotic nuclear division homologous chromosome segregation chromosome segregation rDNA chromatin condensation nucleolar chromatin organization chromatin organization chromosome condensation establishment of organelle localization attachment of meiotic spindle microtubules to kinetochore metaphase chromosome alignment meiotic metaphase I homologous chromosome alignment chromosome localization organelle localization establishment of localization in cell attachment of spindle microtubules to kinetochore spindle attachment to meiosis I kinetochore establishment of localization meiotic metaphase chromosome alignment establishment of chromosome localization	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 organelle envelope nuclear envelope endomembrane system monopolin complex protein-containing complex chromosome chromosomal region kinetochore chromosome, centromeric region condensed chromosome, centromeric region supramolecular complex condensed chromosome

InterPro: Protein Family Classification InterPro Database Homepage

Chains	Accession	Name	Type
A [auth B]	IPR038765	Papain-like cysteine peptidase superfamily	Homologous Superfamily
A [auth B]	IPR003653	Ulp1 protease family, C-terminal catalytic domain	Domain
B [auth A]	IPR038608	Csm1/Pcs1, C-terminal domain superfamily	Homologous Superfamily
B [auth A]	IPR041671	Csm1 N-terminal domain	Domain
B [auth A]	IPR020981	Monopolin complex subunit Csm1/Pcs1, C-terminal	Domain
B [auth A]	IPR040349	Monopolin complex subunit Csm1/Pcs1	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 R01GM157729.