WB, IP
H
Endogenous
25
Rabbit IgG
#O95997
9232
Product Information
Product Usage Information
| Application | Dilution |
|---|---|
| Western Blotting | 1:1000 |
| Immunoprecipitation | 1:200 |
Storage
Specificity / Sensitivity
Species Reactivity:
Human
Source / Purification
Monoclonal antibody is produced by immunizing animals with a synthetic peptide corresponding to residues surrounding Val19 of human securin (PTTG1) protein.
Background
Securin is a regulatory protein that contributes to mitotic checkpoint control, p53 activity, DNA repair, and cell migration. The securin protein prevents premature separation of sister chromatids by inhibiting the protease separase, which cleaves the cohesin complex at the onset of anaphase to allow for sister chromatid segregation (1,2). In mouse oocytes, securin regulates cyclin B stability and G2/M transition (3). Securin negatively affects the transcriptional activity of p53, preventing p53-regulated apoptosis (4). Research studies indicate that securin plays a role in microtubule nucleation, cell polarization, and cell migration (5). Additional research indicates that securin expression may be useful as a biomarker for human breast cancer (6-8). The pituitary tumor-transforming gene 1 (PTTG1) encodes for securin protein, while the highly homologous securin 2 protein is transcribed from the related PTTG2 gene. Securin 2 (PTTG2) protein lacks the ability to inhibit separase activity and may function primarily in cell adhesion and migration (9,10).
- Yanagida, M. (2005) Philos Trans R Soc Lond B Biol Sci 360, 609-21.
- Wirth, K.G. et al. (2006) J Cell Biol 172, 847-60.
- Marangos, P. and Carroll, J. (2008) Nat Cell Biol 10, 445-51.
- Bernal, J.A. et al. (2002) Nat Genet 32, 306-11.
- Moreno-Mateos, M.A. et al. (2011) Mol Biol Cell 22, 4302-11.
- Talvinen, K. et al. (2013) APMIS 121, 945-53.
- Talvinen, K. et al. (2009) Br J Cancer 101, 1005-10.
- Ogbagabriel, S. et al. (2005) Mod Pathol 18, 985-90.
- Han, X. and Poon, R.Y. (2013) Mol Cell Biol 33, 3400-15.
- Méndez-Vidal, C. et al. (2013) Cell Death Dis 4, e530.
Species Reactivity
Species reactivity is determined by testing in at least one approved application (e.g., western blot).
Western Blot Buffer
IMPORTANT: For western blots, incubate membrane with diluted primary antibody in 5% w/v BSA, 1X TBS, 0.1% Tween® 20 at 4°C with gentle shaking, overnight.
Applications Key
WB: Western Blotting IP: Immunoprecipitation
Cross-Reactivity Key
H: human M: mouse R: rat Hm: hamster Mk: monkey Vir: virus Mi: mink C: chicken Dm: D. melanogaster X: Xenopus Z: zebrafish B: bovine Dg: dog Pg: pig Sc: S. cerevisiae Ce: C. elegans Hr: horse GP: Guinea Pig Rab: rabbit All: all species expected
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