Annotations: 3N4R

Domain Annotation: ECOD Classification ECOD Database Homepage

Chains	Family Name	Domain Identifier	Architecture	Possible Homology	Homology	Topology	Family	Provenance Source (Version)
A	PF12539	e3n4rA1	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: PF12539	ECOD (1.6)
B	PF12539	e3n4rB1	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: PF12539	ECOD (1.6)
C	PF12539	e3n4rC1	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: PF12539	ECOD (1.6)
D	PF12539	e3n4rD1	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: PF12539	ECOD (1.6)

Domain Annotation: CATH CATH Database Homepage

Chain	Domain	Class	Architecture	Topology	Homology	Provenance Source (Version)
A	3.90.1150.80	Alpha Beta	Alpha-Beta Complex	Aspartate Aminotransferase, domain 1		CATH (4.3.0)
B	3.90.1150.80	Alpha Beta	Alpha-Beta Complex	Aspartate Aminotransferase, domain 1		CATH (4.3.0)
C	3.90.1150.80	Alpha Beta	Alpha-Beta Complex	Aspartate Aminotransferase, domain 1		CATH (4.3.0)
D	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
A, B, C, D	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, B, C, D	Monopolin complex subunit CSM1	microtubule site clamp protein-macromolecule adaptor activity molecular adaptor activity 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 establishment of organelle localization mitotic metaphase chromosome alignment mitotic cell cycle metaphase chromosome alignment chromosome localization organelle localization establishment of localization in cell mitotic sister chromatid segregation chromosome segregation mitotic nuclear division attachment of spindle microtubules to kinetochore organelle fission attachment of mitotic spindle microtubules to kinetochore sister chromatid segregation establishment of localization nuclear division mitotic cell cycle process nuclear chromosome segregation establishment of chromosome localization meiotic chromosome segregation sexual reproduction reproductive process meiotic cell cycle meiotic cell cycle process meiosis I meiosis I cell cycle process meiotic nuclear division homologous chromosome segregation rDNA chromatin condensation protein-containing complex organization nucleolar chromatin organization protein-DNA complex organization chromatin organization chromosome condensation attachment of meiotic spindle microtubules to kinetochore meiotic metaphase I homologous chromosome alignment spindle attachment to meiosis I kinetochore meiotic metaphase chromosome alignment meiosis II cell cycle process chromosome organization involved in meiotic cell cycle meiotic sister chromatid segregation meiosis II	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, centromeric core domain chromosome, centromeric region chromosome chromosomal region organelle envelope nuclear envelope endomembrane system monopolin complex protein-containing complex kinetochore condensed chromosome, centromeric region supramolecular complex condensed chromosome mitotic spindle cytoskeleton spindle microtubule cytoskeleton

InterPro: Protein Family Classification InterPro Database Homepage

Chains	Accession	Name	Type
A, B, C, D	IPR038608	Csm1/Pcs1, C-terminal domain superfamily	Homologous Superfamily
A, B, C, D	IPR041671	Csm1 N-terminal domain	Domain
A, B, C, D	IPR020981	Monopolin complex subunit Csm1/Pcs1, C-terminal	Domain
A, B, C, D	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 R01GM133198.