3ZXU | pdb_00003zxu

Crystal structure of the Ctf19-Mcm21 kinetochore heterodimer from yeast

External Resource: Annotation

Domain Annotation: SCOP2 Classification
Domain Annotation: ECOD Classification
Domain Annotation: CATH
Protein Family Annotation
Gene Ontology: Gene Product Annotation
InterPro: Protein Family Classification

Domain Annotation: SCOP2 Classification SCOP2 Database Homepage

Chains	Type	Family Name	Domain Identifier	Family Identifier	Provenance Source (Version)
D	SCOP2B Superfamily	RWD domain-like	8053996	3000774	SCOP2B (2022-06-29)
D	SCOP2B Superfamily	RWD domain-like	8053997	3000774	SCOP2B (2022-06-29)
B	SCOP2 Family	CENP-P domain-like	8053992	4007624	SCOP2 (2022-06-29)
B	SCOP2 Superfamily	RWD domain-like	8053996	3000774	SCOP2 (2022-06-29)
B	SCOP2 Superfamily	RWD domain-like	8053997	3000774	SCOP2 (2022-06-29)
C	SCOP2 Family	CENP-O domain-like	8044992	4004240	SCOP2 (2022-06-29)
C	SCOP2 Superfamily	RWD domain-like	8053988	3000774	SCOP2 (2022-06-29)
A	SCOP2B Superfamily	RWD domain-like	8053988	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)
D	EUF08434	e3zxuD1	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: EUF08434	ECOD (1.6)
D	EUF08436	e3zxuD2	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: EUF08436	ECOD (1.6)
B	EUF08434	e3zxuB1	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: EUF08434	ECOD (1.6)
B	EUF08436	e3zxuB2	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: EUF08436	ECOD (1.6)
C	CENP-O	e3zxuC1	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: CENP-O	ECOD (1.6)
C	EUF08435	e3zxuC2	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: EUF08435	ECOD (1.6)
A	CENP-O	e3zxuA1	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: CENP-O	ECOD (1.6)
A	EUF08435	e3zxuA2	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: EUF08435	ECOD (1.6)

Domain Annotation: CATH CATH Database Homepage

Chain	Domain	Class	Architecture	Topology	Homology	Provenance Source (Version)
D	3.40.50.12050	Alpha Beta	3-Layer(aba) Sandwich	Rossmann fold		CATH (4.3.0)
B	3.40.50.12050	Alpha Beta	3-Layer(aba) Sandwich	Rossmann fold		CATH (4.3.0)

Protein Family Annotation Pfam Database Homepage

Chains	Accession	Name	Description	Comments	Source
B, D	PF22463	Ctf19, first RWD domain (Ctf19_RWD1)	Ctf19, first RWD domain	This entry represents the first occurrence of the RWD domain within the Ctf19 subunit of the inner kinetochore in Kluyveromyces lactis. Ctf19 is a component of the constitutive centromere associated network (CCAN), which forms the structural basis of ...	This entry represents the first occurrence of the RWD domain within the Ctf19 subunit of the inner kinetochore in Kluyveromyces lactis. Ctf19 is a component of the constitutive centromere associated network (CCAN), which forms the structural basis of the kinetochore. The CCAN governs the timing of kinetochore assembly, establishes its position through interaction with a specialised nucleosome containing the histone H3 variant Cse4/CENP-A, and determines the arrangement of the microtubule attachment machinery. In this way, eukaryotic kinetochores establish a connection between spindle microtubules and chromosomal centromeres [1,2].	Domain
B, D	PF22462	Ctf19, second RWD domain (Ctf19_RWD2)	Ctf19, second RWD domain	This entry represents the second occurrence of the RWD domain within the Ctf19 subunit of the inner kinetochore in Kluyveromyces lactis. Ctf19 is a component of the constitutive centromere associated network (CCAN), which forms the structural basis o ...	This entry represents the second occurrence of the RWD domain within the Ctf19 subunit of the inner kinetochore in Kluyveromyces lactis. Ctf19 is a component of the constitutive centromere associated network (CCAN), which forms the structural basis of the kinetochore. The CCAN governs the timing of kinetochore assembly, establishes its position through interaction with a specialized nucleosome containing the histone H3 variant Cse4/CENP-A, and determines the arrangement of the microtubule attachment machinery. In this way, eukaryotic kinetochores establish a connection between spindle microtubules and chromosomal centromeres [1,2].	Domain
A, C	PF09496	Cenp-O kinetochore centromere component (CENP-O)	Cenp-O kinetochore centromere component	-	Family

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
B, D	CTF19	-	sexual reproduction reproductive process meiotic cell cycle cellular process cell cycle cell division	intracellular anatomical structure intracellular membraneless organelle chromosome chromosomal region kinetochore intracellular organelle cellular anatomical structure organelle membraneless organelle chromosome, centromeric region condensed chromosome, centromeric region supramolecular complex condensed chromosome membrane-bounded organelle intracellular anatomical structure intracellular membraneless organelle chromosome chromosomal region kinetochore intracellular organelle cellular anatomical structure organelle membraneless organelle chromosome, centromeric region condensed chromosome, centromeric region supramolecular complex condensed chromosome membrane-bounded organelle nucleus intracellular membrane-bounded organelle
A, C	MCM21	-	sexual reproduction reproductive process meiotic cell cycle cellular process cell cycle cell division	intracellular anatomical structure intracellular membraneless organelle chromosome chromosomal region kinetochore intracellular organelle cellular anatomical structure organelle membraneless organelle chromosome, centromeric region condensed chromosome, centromeric region supramolecular complex condensed chromosome membrane-bounded organelle intracellular anatomical structure intracellular membraneless organelle chromosome chromosomal region kinetochore intracellular organelle cellular anatomical structure organelle membraneless organelle chromosome, centromeric region condensed chromosome, centromeric region supramolecular complex condensed chromosome membrane-bounded organelle nucleus intracellular membrane-bounded organelle

InterPro: Protein Family Classification InterPro Database Homepage

Chains	Accession	Name	Type
A, C	IPR018464	Centromere protein O	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.