CstF-50 polyclonal, anti-human, mouse, rat

Background:
Polyadenylation of mRNA precursors is a two-step reaction that requires multiple protein factors. The first step, endonucleolytic cleavage of polyadenylation substrates, requires CstF (cleavage stimulation factor), a heterotrimer that is composed of three distinct subunits of 77, 64 and 50 kDa. Heterotrimeric CstF recognizes GU and U-rich sequences located downstream of the polyadenylation site on RNA. The 50 kDa CstF subunit shares extensive homology with mammalian G protein beta-subunits and has a transducin repeat domain, which is a 44 amino acid-long sequence that is repeated seven times. CstF-50 interacts with the nuclear protein BARD1 (BRCA1-associated RING domain protein) and inhibits polyadenylation in vitro. CstF-50 may also be responsible for the interaction of the heterotrimeric CstF complex with other polyadenylation and 3'-end cleavage factors to form a stable complex on the pre-mRNA.

Alternative Name:
Cleavage stimulation factor subunit 1, CF-1 50 kDa subunit, Cleavage stimulation factor 50 kDa subunit, CSTF 50 kDa subunit, CstF-50, CstF50, CSTF1

Application Dilution: WB: 1:500 - 1:2000

Specificity: CstF-50 polyclonal antibody detects endogenous levels of CstF-50 protein.

Immunogen:
Recombinant protein of human CSTF1

MW: 50kDa

Swis Prot.: Q05048

Purification & Purity:
The antibody was affinity-purified from rabbit antiserum by affinity-chromatography using epitope-specific immunogen and the purity is > 95% (by SDS-PAGE).

Format:
1mg/ml in PBS with 0.1% Sodium Azide, 50% Glycerol.

Storage:
Store at 4°C short term. Aliquot and store at -20°C long term. Avoid freeze-thaw cycles.

For research use only, not for use in diagnostic procedure.