Annotations: 3N7N

Domain Annotation: SCOP2 Classification SCOP2 Database Homepage

Chains	Type	Family Name	Domain Identifier	Family Identifier	Provenance Source (Version)
A	SCOP2B Superfamily	RWD domain-like	8103665	3000774	SCOP2B (2022-06-29)
B	SCOP2B Superfamily	RWD domain-like	8103665	3000774	SCOP2B (2022-06-29)
C	SCOP2B Superfamily	RWD domain-like	8103665	3000774	SCOP2B (2022-06-29)
D	SCOP2B Superfamily	RWD domain-like	8103665	3000774	SCOP2B (2022-06-29)
E	SCOP2B Superfamily	LRS4-like	8053354	3002179	SCOP2B (2022-06-29)
F	SCOP2 Family	LRS4-like	8044827	4004160	SCOP2 (2022-06-29)
F	SCOP2 Superfamily	LRS4-like	8053354	3002179	SCOP2 (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	Csm1	e3n7nA1	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)
B	Csm1	e3n7nB1	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)
C	Csm1	e3n7nC1	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)
D	Csm1	e3n7nD1	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)
A	1.20.5.340	Mainly Alpha	Up-down Bundle	Single alpha-helices involved in coiled-coils or other helix-helix interfaces		CATH (4.3.0)
A	3.90.1150.80	Alpha Beta	Alpha-Beta Complex	Aspartate Aminotransferase, domain 1		CATH (4.3.0)
B	1.20.5.340	Mainly Alpha	Up-down Bundle	Single alpha-helices involved in coiled-coils or other helix-helix interfaces		CATH (4.3.0)
B	3.90.1150.80	Alpha Beta	Alpha-Beta Complex	Aspartate Aminotransferase, domain 1		CATH (4.3.0)
C	1.20.5.340	Mainly Alpha	Up-down Bundle	Single alpha-helices involved in coiled-coils or other helix-helix interfaces		CATH (4.3.0)
C	3.90.1150.80	Alpha Beta	Alpha-Beta Complex	Aspartate Aminotransferase, domain 1		CATH (4.3.0)
D	1.20.5.340	Mainly Alpha	Up-down Bundle	Single alpha-helices involved in coiled-coils or other helix-helix interfaces		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
A, B, C, D	PF18504	Csm1 N-terminal domain (Csm1_N)	Csm1 N-terminal domain	-	Coiled-coil
E, F	PF10422	Monopolin complex subunit LRS4 (LRS4)	Monopolin complex subunit LRS4	-	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	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 protein-containing complex organization nucleolar chromatin organization protein-DNA complex 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
E, F	Monopolin complex subunit LRS4	-	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 cellular process meiotic nuclear division cell cycle cellular component organization or biogenesis 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 cellular process meiotic nuclear division cell cycle cellular component organization or biogenesis chromosome segregation cell cycle process cellular response to stimulus response to stimulus nucleobase-containing compound metabolic process organic substance metabolic process replication-born double-strand break repair via sister chromatid exchange heterocycle metabolic process cellular response to stress response to stress nitrogen compound metabolic process recombinational repair double-strand break repair via homologous recombination DNA repair double-strand break repair cellular metabolic process DNA recombination cellular nitrogen compound metabolic process primary metabolic process DNA metabolic process nucleic acid metabolic process organic cyclic compound metabolic process DNA damage response metabolic process macromolecule metabolic process cellular aromatic compound metabolic process rDNA chromatin condensation protein-containing complex organization nucleolar chromatin organization chromosome organization protein-DNA complex organization nucleus organization nucleolus organization chromatin organization chromosome condensation establishment of organelle localization cellular localization attachment of meiotic spindle microtubules to kinetochore metaphase chromosome alignment localization meiotic metaphase I homologous chromosome alignment meiosis I chromosome localization organelle localization establishment of localization in cell attachment of spindle microtubules to kinetochore spindle attachment to meiosis I kinetochore establishment of localization meiosis I cell cycle process meiotic metaphase chromosome alignment homologous chromosome segregation establishment of chromosome localization regulation of cellular process cellular biosynthetic process negative regulation of biological process negative regulation of cellular metabolic process organic substance biosynthetic process negative regulation of cellular process chromatin remodeling rDNA heterochromatin formation negative regulation of macromolecule metabolic process regulation of biosynthetic process regulation of biological process heterochromatin formation epigenetic regulation of gene expression negative regulation of metabolic process biological regulation regulation of cellular metabolic process regulation of macromolecule metabolic process gene expression macromolecule biosynthetic process negative regulation of cellular biosynthetic process regulation of cellular biosynthetic process regulation of gene expression negative regulation of gene expression biosynthetic process negative regulation of biosynthetic process negative regulation of macromolecule biosynthetic process facultative heterochromatin formation negative regulation of gene expression, epigenetic regulation of macromolecule biosynthetic process regulation of metabolic process protein localization protein localization to nucleolar rDNA repeats protein localization to chromosome protein localization to organelle cellular macromolecule localization macromolecule 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 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, 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
E, F	IPR018479	Monopolin complex subunit Lrs4/Mde4	Family

RCSB PDB Core Operations are funded by the National Science Foundation (DBI-1832184), 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.