Anti-Cyclin B1 (Ab-147)

The protein encoded by Cyclin B1 is a regulatory protein involved in mitosis. The gene product complexes with p34(cdc2) to form the maturation-promoting factor (MPF). Two alternative transcripts have been found, a constitutively expressed transcript and a cell cycle-regulated transcript, that is expressed predominantly during G2/M phase. The different transcripts result from the use of alternate transcription initiation sites. Norbury, C. and Nurse, P. (1992) Annu. Rev. Biochem. 61, 441-470. Atherton-Fessler, S. et al. (1993) Mol. Cell. Biol. 13, 1675-1685. Galaktionov, K. et al. (1995) Genes Dev. 9, 1046-1058. Protein function: Essential for the control of the cell cycle at the G2/M (mitosis) transition. [The UniProt Consortium]