Cancer Protein Description

This report provides a detailed description of a selected cancer protein with information collected from various sources, including UniProt, the Wellcome Trust Sanger Institute’s Catalogue of Somatic Mutations in Cancer (COSMIC), and the Atlas of Genetics and Cytogenetics in Oncology and Haematology.


Protein Name: BUB1B
Gene Name: BUB1B
Protein Full Name: Mitotic checkpoint serine/threonine-protein kinase
Alias: BUB1 budding uninhibited by benzimidazoles 1 homologue beta (yeast); EC 2.7.11.1; HBUBR1; Kinase BubR1; MAD3/BUB1-related protein kinase
Mass (Da): 119545
Number AA: 1050
UniProt ID: O60566
Locus ID: 701
COSMIC ID: BUB1B
Gene location on chromosome: 15q15
Cancer protein type: TSP
Effect of cancer mutation on protein: LOSS
Effect of active protein on cancer: INHIBITS
Number of cancer specimens: 1483
Percent of cancer specimens with mutations: 0.26972353338
Normal role description: BUB1B is a protein-serine/threonine kinase. It is an essential component of mitotic checkpoint. It prevents progression of anaphase until all the sister chomatids are connected to spindles by binding to CDC20 to anaphase promoting complex/cycolsome thus inhibiting it. It is also involved in localization of CENPE, a kinetochore motor that performs kinetochore functions. Other functions include suppression of centrosome amplification, negative regulation of PLK1 in intephase and trigger apoptosis in polyploid cells.


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