1U4C

Structure of spindle checkpoint protein Bub3

External Resource: Annotation

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

Chains	Domain Info	Class	Fold	Superfamily	Family	Domain	Species	Provenance Source (Version)
A	d1u4ca_	All beta proteins	7-bladed beta-propeller	WD40 repeat-like	Cell cycle arrest protein BUB3	Cell cycle arrest protein BUB3	baker's yeast (Saccharomyces cerevisiae ) [TaxId: 4932 ],	SCOPe (2.08)
B	d1u4cb_	All beta proteins	7-bladed beta-propeller	WD40 repeat-like	Cell cycle arrest protein BUB3	Cell cycle arrest protein BUB3	baker's yeast (Saccharomyces cerevisiae ) [TaxId: 4932 ],	SCOPe (2.08)

Domain Annotation: SCOP2 Classification SCOP2 Database Homepage

Chains	Type	Family Name	Domain Identifier	Family Identifier	Provenance Source (Version)
A	SCOP2B Superfamily	WD40 repeat-like	8044307	3001694	SCOP2B (2022-06-29)
B	SCOP2B Superfamily	WD40 repeat-like	8044307	3001694	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)
A	PF00400	e1u4cA1	A: beta duplicates or obligate multimers	X: beta-propeller-like	H: beta-propeller	T: 7-bladed	F: PF00400	ECOD (1.6)
B	PF00400	e1u4cB1	A: beta duplicates or obligate multimers	X: beta-propeller-like	H: beta-propeller	T: 7-bladed	F: PF00400	ECOD (1.6)

Domain Annotation: CATH CATH Database Homepage

Chain	Domain	Class	Architecture	Topology	Homology	Provenance Source (Version)
A	2.130.10.10	Mainly Beta	7 Propeller	Methylamine Dehydrogenase	Chain H	CATH (4.3.0)
B	2.130.10.10	Mainly Beta	7 Propeller	Methylamine Dehydrogenase	Chain H	CATH (4.3.0)

Protein Family Annotation Pfam Database Homepage

Chains	Accession	Name	Description	Comments	Source
A, B	PF00400	WD domain, G-beta repeat (WD40)	WD domain, G-beta repeat	-	Repeat

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
A, B	Cell cycle arrest protein BUB3	protein binding binding ubiquitin binding ubiquitin-like protein binding	cellular response to stimulus regulation of cellular process regulation of cell cycle phase transition response to stimulus signaling negative regulation of biological process negative regulation of cell cycle cell cycle phase transition intracellular signal transduction mitotic cell cycle negative regulation of mitotic cell cycle cell communication regulation of mitotic cell cycle mitotic DNA integrity checkpoint signaling negative regulation of cellular process cellular response to stimulus regulation of cellular process regulation of cell cycle phase transition response to stimulus signaling negative regulation of biological process negative regulation of cell cycle cell cycle phase transition intracellular signal transduction mitotic cell cycle negative regulation of mitotic cell cycle cell communication regulation of mitotic cell cycle mitotic DNA integrity checkpoint signaling negative regulation of cellular process negative regulation of cell cycle phase transition signal transduction cell cycle regulation of cell cycle cell cycle process regulation of biological process regulation of cell cycle process biological regulation DNA integrity checkpoint signaling negative regulation of cell cycle process cell cycle checkpoint signaling mitotic cell cycle checkpoint signaling mitotic cell cycle process cellular process spindle checkpoint signaling regulation of mitotic nuclear division negative regulation of mitotic sister chromatid segregation negative regulation of chromosome organization mitotic spindle checkpoint signaling mitotic sister chromatid separation chromosome segregation negative regulation of sister chromatid segregation mitotic spindle assembly checkpoint signaling negative regulation of cellular component organization sister chromatid segregation regulation of chromosome organization regulation of organelle organization regulation of mitotic cell cycle phase transition regulation of mitotic sister chromatid segregation 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 spindle assembly checkpoint signaling regulation of mitotic metaphase/anaphase transition cellular component organization mitotic sister chromatid segregation negative regulation of mitotic metaphase/anaphase transition cellular component organization or biogenesis negative regulation of chromosome separation mitotic nuclear division negative regulation of mitotic cell cycle phase transition organelle fission chromosome organization 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 metaphase/anaphase transition of cell cycle mitotic cell cycle phase transition regulation of protein modification process positive regulation of protein metabolic process positive regulation of biological process regulation of protein autoubiquitination regulation of protein ubiquitination positive regulation of post-translational protein modification regulation of primary metabolic process positive regulation of metabolic process positive regulation of protein modification process organic substance metabolic process protein ubiquitination positive regulation of macromolecule metabolic process protein metabolic process regulation of protein modification by small protein conjugation or removal protein modification process positive regulation of protein modification by small protein conjugation or removal positive regulation of protein ubiquitination organonitrogen compound metabolic process regulation of post-translational protein modification regulation of protein metabolic process protein autoubiquitination primary metabolic process regulation of macromolecule metabolic process macromolecule modification metabolic process positive regulation of protein autoubiquitination macromolecule metabolic process post-translational protein modification regulation of metabolic process protein modification by small protein conjugation protein modification by small protein conjugation or removal	protein-containing complex bub1-bub3 complex membrane-bounded organelle intracellular organelle intracellular anatomical structure organelle nucleus nuclear protein-containing complex mitotic checkpoint complex intracellular membrane-bounded organelle cellular anatomical entity chromosome chromosomal region kinetochore protein-containing complex bub1-bub3 complex membrane-bounded organelle intracellular organelle intracellular anatomical structure organelle nucleus nuclear protein-containing complex mitotic checkpoint complex intracellular membrane-bounded organelle cellular anatomical entity chromosome chromosomal region kinetochore intracellular non-membrane-bounded organelle chromosome, centromeric region condensed chromosome, centromeric region supramolecular complex condensed chromosome non-membrane-bounded organelle membrane-enclosed lumen intracellular organelle lumen nucleoplasm organelle lumen nuclear lumen

InterPro: Protein Family Classification InterPro Database Homepage

Chains	Accession	Name	Type
A, B	IPR001680	WD40 repeat	Repeat
A, B	IPR036322	WD40-repeat-containing domain superfamily	Homologous Superfamily
A, B	IPR015943	WD40/YVTN repeat-like-containing domain superfamily	Homologous Superfamily

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.