InnateDB Protein
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IDBP-693088.2
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Last Modified
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2014-10-13 [Report errors or provide feedback]
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Gene Symbol
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BUB3
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Protein Name
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Mitotic checkpoint protein BUB3
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Synonyms
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Species
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Bos taurus
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Ensembl Protein
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ENSBTAP00000051164
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InnateDB Gene
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IDBG-640791 (BUB3)
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Protein Structure
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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. Regulates chromosome segregation during oocyte meiosis. 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). {ECO:0000250}.
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Subcellular Localization |
Nucleus {ECO:0000250}. Chromosome, centromere, kinetochore {ECO:0000250}. 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}.
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Disease Associations |
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Tissue Specificity |
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Comments |
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Number of Interactions
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This gene and/or its encoded proteins are associated with 0 experimentally validated interaction(s) in this database.
They are also associated with 39 interaction(s) predicted by orthology.
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Predicted by orthology |
Total |
39 [view]
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Molecular Function |
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Biological Process |
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Cellular Component |
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PDB ID |
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InterPro |
IPR001680
WD40 repeat
IPR017986
WD40-repeat-containing domain
IPR020472
G-protein beta WD-40 repeat
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PFAM |
PF00400
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PRINTS |
PR00320
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PIRSF |
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SMART |
SM00320
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TIGRFAMs |
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Modification |
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SwissProt |
Q1JQB2
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PhosphoSite |
PhosphoSite-
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TrEMBL |
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UniProt Splice Variant |
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Entrez Gene |
539594
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UniGene |
Bt.26981
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RefSeq |
NP_001069645
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HUGO |
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OMIM |
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CCDS |
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HPRD |
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IMGT |
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EMBL |
BC116090
BT030579
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GenPept |
AAI16091
ABQ13019
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