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- Table of Contents
Facts about Mitotic checkpoint serine/threonine-protein kinase BUB1.
Required for the kinetochore localization of PLK1. Required for centromeric enrichment of AUKRB in prometaphase.
Human | |
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Gene Name: | BUB1 |
Uniprot: | O43683 |
Entrez: | 699 |
Belongs to: |
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protein kinase superfamily |
BUB1 budding uninhibited by benzimidazoles 1 homolog; Bub1; BUB1Amitotic checkpoint serine/threonine-protein kinase BUB1; BUB1L; budding uninhibited by benzimidazoles 1 (yeast homolog); budding uninhibited by benzimidazoles 1 homolog (yeast); EC 2.7.11.1; hBUB1mitotic spindle checkpoint kinase; putative serine/threonine-protein kinase
Mass (kDA):
122.375 kDA
Human | |
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Location: | 2q13 |
Sequence: | 2; NC_000002.12 (110637528..110678107, complement) |
High expression in testis and thymus, less in colon, spleen, lung and small intestine. Expressed in fetal thymus, bone marrow, heart, liver, spleen and thymus. Expression is associated with cells/tissues with a high mitotic index.
Nucleus. Chromosome, centromere, kinetochore. Nuclear in interphase cells. Accumulates gradually during G1 and S phase of the cell cycle, peaks at G2/M, and drops dramatically after mitosis. Localizes to the outer kinetochore. Kinetochore localization is required for normal mitotic timing and checkpoint response to spindle damage and occurs very early in prophase. AURKB, KNL1 and INCENP are required for kinetochore localization (By similarity).
PMID: 9521327 by Cahill D.P., et al. Mutations of mitotic checkpoint genes in human cancers.
PMID: 9790499 by Ouyang B., et al. Human Bub1: a putative spindle checkpoint kinase closely linked to cell proliferation.