Product Pathways - Cell Cycle / Checkpoint
Cyclin B1 Antibody #4138
|4138S||100 µl (10 western blots)||---||In Stock||---|
|4138P||40 µl (4 western blots)||---||In Stock||---|
|4138||carrier free and custom formulation / quantity||email request|
Already purchased this product? Write a Review.
|W||1:1000||Human, Mouse, Rat, Hamster, Monkey||Endogenous||58||Rabbit|
Species cross-reactivity is determined by western blot.
Applications Key: W=Western Blotting, IF-IC=Immunofluorescence (Immunocytochemistry)
Specificity / Sensitivity
Cyclin B1 Antibody detects endogenous levels of total cyclin B1.
Source / Purification
Polyclonal antibodies are produced by immunizing animals with a syntheic peptide corresponding to residues near the amino terminus of human cyclin B1. Antibodies are purified using peptide affinity chromatography.
Cyclins are a family of proteins that activate specific cyclin-dependent kinases required for progression through the cell cycle. The entry of all eukaryotic cells into mitosis is regulated by activation of cdc2/cdk1 at the G2/M transition. This activation is a multi-step process that begins with the binding of the regulatory subunit, cyclin B1, to cdc2/cdk1 to form the mitosis-promoting factor (MPF). MPF remains in the inactive state until phosphorylation of cdc2/cdk1 at Thr161 by cdk activating kinase (CAK) (1,2) and dephosphorylation of cdc2/cdk1 at Thr14/Tyr15 by cdc25C (3-5). Five cyclin B1 phosphorylation sites (Ser116, 126, 128, 133, and 147) are located in the cytoplasmic retention signal (CRS) domain and are thought to regulate the translocation of cyclin B1 to the nucleus at the G2/M checkpoint, promoting nuclear accumulation and initiation of mitosis (6-9). While MPF itself can phosphorylate Ser126 and Ser128, polo-like kinase 1 (PLK1) phosphorylates cyclin B1 preferentially at Ser133 and possibly at Ser147 (6,10). At the end of mitosis, cyclin B1 is targeted for degradation by the anaphase-promoting complex (APC), allowing for cell cycle progression (11). Research studies have shown that cyclin B1 is overexpressed in breast, prostate, and non-small cell lung cancers (12-14).
- Lorca, T. et al. (1992) EMBO J 11, 2381-90.
- Harper, J.W. and Elledge, S.J. (1998) Genes Dev 12, 285-9.
- Norbury, C. et al. (1991) EMBO J 10, 3321-9.
- McGowan, C.H. and Russell, P. (1993) EMBO J 12, 75-85.
- Atherton-Fessler, S. et al. (1994) Mol Biol Cell 5, 989-1001.
- Toyoshima-Morimoto, F. et al. (2001) Nature 410, 215-20.
- Li, J. et al. (1997) Proc Natl Acad Sci U S A 94, 502-7.
- Takizawa, C.G. and Morgan, D.O. (2000) Curr Opin Cell Biol 12, 658-65.
- Santos, S.D. et al. (2012) Cell 149, 1500-13.
- Jackman, M. et al. (2003) Nat Cell Biol 5, 143-8.
- Gong, D. and Ferrell, J.E. (2010) Mol Biol Cell 21, 3149-61.
- Mashal, R.D. et al. (1996) Cancer Res 56, 4159-63.
- Kawamoto, H. et al. (1997) Am J Pathol 150, 15-23.
- Soria, J.C. et al. (2000) Cancer Res 60, 4000-4.
Have you published research involving the use of our products? If so we'd love to hear about it. Please let us know!
- 4131 Phospho-Cyclin B1 (Ser147) Antibody
- 4135 Cyclin B1 (V152) Mouse mAb
- 9111 Phospho-cdc2 (Tyr15) Antibody
- 9112 cdc2 Antibody
- 9527 Phospho-cdc25C (Thr48) Antibody
- 7071 Phototope®-HRP Western Blot Detection System, Anti-rabbit IgG, HRP-linked Antibody
- 7074 Anti-rabbit IgG, HRP-linked Antibody
- 7720 Prestained Protein Marker, Broad Range (Premixed Format)
- 7727 Biotinylated Protein Ladder Detection Pack
- 7003 20X LumiGLO® Reagent and 20X Peroxide
For Research Use Only. Not For Use In Diagnostic Procedures.
Alexa Fluor® is a registered trademark of Molecular Probes, Inc.
Cell Signaling Technology® is a trademark of Cell Signaling Technology, Inc.