Mus musculus Protein: Bub3
Summary
InnateDB Protein IDBP-211016.6
Last Modified 2014-10-13 [Report errors or provide feedback]
Gene Symbol Bub3
Protein Name budding uninhibited by benzimidazoles 3 homolog (S. cerevisiae)
Synonyms AU019800; AU021329; AU043350; AW146323; C78067;
Species Mus musculus
Ensembl Protein ENSMUSP00000081547
InnateDB Gene IDBG-211014 (Bub3)
Protein Structure
UniProt Annotation
Function Has a dual function in spindle-assembly checkpoint signaling and in promoting the establishment of correct kinetochore-microtubule (K-MT) attachments. Promotes the formation of stable end-on bipolar attachments. Necessary for kinetochore localization of BUB1. The BUB1/BUB3 complex plays a role in the inhibition of anaphase-promoting complex or cyclosome (APC/C) when spindle-assembly checkpoint is activated and inhibits the ubiquitin ligase activity of APC/C by phosphorylating its activator CDC20. This complex can also phosphorylate MAD1L1 (By similarity). Regulates chromosome segregation during oocyte meiosis. {ECO:0000250, ECO:0000269PubMed:19888327}.
Subcellular Localization Nucleus {ECO:0000250}. Chromosome, centromere, kinetochore {ECO:0000269PubMed:19888327}. Note=Starts to localize at kinetochores in prometaphase I (Pro-MI) stage and maintains the localization until the metaphase I-anaphase I (MI- AI) transition. {ECO:0000250}.
Disease Associations
Tissue Specificity
Comments
Interactions
Number of Interactions This gene and/or its encoded proteins are associated with 9 experimentally validated interaction(s) in this database.
They are also associated with 41 interaction(s) predicted by orthology.
Experimentally validated
Total 9 [view]
Protein-Protein 9 [view]
Protein-DNA 0
Protein-RNA 0
DNA-DNA 0
RNA-RNA 0
DNA-RNA 0
Predicted by orthology
Total 41 [view]
Gene Ontology

Molecular Function
Accession GO Term
GO:0005515 protein binding
Biological Process
GO:0000070 mitotic sister chromatid segregation
GO:0007059 chromosome segregation
GO:0007126 meiotic nuclear division
GO:0008608 attachment of spindle microtubules to kinetochore
GO:0051983 regulation of chromosome segregation
GO:0071173 spindle assembly checkpoint
Cellular Component
GO:0000776 kinetochore
GO:0000777 condensed chromosome kinetochore
GO:0005634 nucleus
Protein Structure and Domains
PDB ID MGI:1343463
InterPro IPR001680 WD40 repeat
IPR017986 WD40-repeat-containing domain
IPR020472 G-protein beta WD-40 repeat
PFAM PF00400
PRINTS PR00320
PIRSF
SMART SM00320
TIGRFAMs
Post-translational Modifications
Modification
Cross-References
SwissProt Q9WVA3
PhosphoSite PhosphoSite-Q9WVA3
TrEMBL Q8BH42
UniProt Splice Variant
Entrez Gene 12237
UniGene Mm.419467
RefSeq NP_033904
MGI ID
MGI Symbol Bub3
OMIM
CCDS CCDS40160
HPRD
IMGT
EMBL AF149822 AK039977 AK079742 AK088534 BC025089 U67327
GenPept AAB39606 AAD38038 AAH25089 BAC30489 BAC37738 BAC40409