Gene Information
Gene NameBUB1
OrganismHomo sapiens (Human)
Gene Length1085
Protein NamesMitotic checkpoint serine/threonine-protein kinase BUB1 (hBUB1) (EC 2.7.11.1) (BUB1A)
Target Namebub1 mitotic checkpoint serine/threonine kinase
Target TypePatented-recorded target
Gene Age1488 ( ENSG00000169679 )
Evolutionary StageEukaryota
AlphaFoldDBO43683
Gene CardBUB1
Uniprot IDO43683
PfamPF08311; PF00069
In ASDno
Allosteric Predictionyes (0.115552611)
Ortholog in AnimalsAlpaca_ BUB1 ( ortholog_one2one )
Dog_ BUB1 ( ortholog_one2one )
GuineaPig_ BUB1 ( ortholog_one2one )
Macaque_ BUB1 ( ortholog_one2one )
Mouse_ Bub1 ( ortholog_one2one )
Pig_ BUB1 ( ortholog_one2one )
Rat_ Bub1 ( ortholog_one2one )
Rabbit_ BUB1 ( ortholog_one2one )
OhnologsNA
ParalogsBUB1B
Tissueappendix, testis, brain
Tissue SpecificityHigh 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.
Pharmacological Animal ModelsNULL(Chimpanzee);NULL(Mouse);0.002657(Rat);NULL(Rabbit)
Gene Ontology
(biological process)
Gene Ontology
(cellular component)
Gene Ontology
(molecular function)
PDB 2LAH  (NMR  4A1G  (X-ray  2.60A  4QPM  (X-ray  2.20A  4R8Q  (X-ray  2.31A  5DMZ  (X-ray  2.40A  6F7B  (X-ray  2.00A  7B1F  (X-ray  1.75A  7B1H  (X-ray  2.40A  7B1J  (X-ray  2.90A 
DBSNP rs35890336  rs1801328  rs121909055  rs36109304  rs376649190 
Subcellular location [CC]Nucleus. Chromosome, centromere, kinetochore. Note=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). {ECO:0000250}.
Mouse PG classificationNA
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