Product Name: CstF-64 Polyclonal Antibody, Cy5 Conjugated
Applications: IF(IHC-P)
Reactivity: Human, Mouse, Rat
Conjugation: Cy5
Host: Rabbit
Sourcr: KLH conjugated synthetic peptide derived from human CSTF2T/CstF-64
Clonality: Polyclonal
CAS NO: 139264-17-8
Product: Metronidazole
Isotype: IgG
Concentration: 1ug/ul
Purification: Purified by Protein A.
Storage: Aqueous buffered solution containing 1% BSA, 50% glycerol and 0.09% sodium azide. Store at 4°C for 12 months.
Synonyms: CF1 64 kDa subunit, tau variant; Cleavage stimulation factor 64 kDa subunit, tau variant; CSTF 64 kDa subunit, tau variant; KIAA0689; TauCstF64; CSTFT_HUMAN.
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. CstF-64 contains an RNA binding domain and is responsible for the RNA binding activity of CstF. CstF-64 is expressed in all somatic cells and in pre- and postmeiotic, but not meiotic, germ cells. However, a large variant of CstF-64, called t CstF-64, is abundantly expressed in meiotic and postmeiotic cells in the testis and to a lesser extent in the brain, and promotes the germ cell pattern of polyadenylation. The gene encoding CstF-64 (designated CSTF2) maps to the X chromosome, whereas t CstF-64 is encoded by an autosomal gene. The increase in CstF-64 concentration during B cell activation switches IgM heavy chain mRNA expression from membrane-bound to secreted forms, suggesting that CstF-64 plays a key role in regulating IgM heavy chain expression during B cell differentiation.
PubMed ID:http://jpet.aspetjournals.org/content/45/3/253