Overview |
bs-8553R |
CstF64(Ser498) Polyclonal Antibody |
WB, ELISA, IHC-P, IHC-F, IF(IHC-P), IF(IHC-F), IF(ICC) |
Human |
Mouse, Rat, Dog, Cow, Sheep, Pig, Horse |
Specifications |
Unconjugated |
Rabbit |
KLH conjugated synthetic phosphopeptide derived from human CstF64 around the phosphorylation site of Ser498 |
Ser498 |
Polyclonal |
IgG |
1ug/ul |
Purified by Protein A. |
0.01M TBS(pH7.4) with 1% BSA, 0.02% Proclin300 and 50% Glycerol. |
Shipped at 4°C. Store at -20°C for one year. Avoid repeated freeze/thaw cycles. |
Target |
1478 |
Nucleus |
p-CstF-64 Ser498; p-CstF-64 S498; CstF64 Ser498; CstF64 S498; CSTF2T; CF1 64 kDa subunit, tau variant; Cleavage stimulation factor 64 kDa subunit, tau variant; CSTF 64 kDa subunit, tau variant; KIAA0689; TauCstF64; CSTF2_HUMAN. |
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. |
Application Dilution |
WB |
1:300-5000 |
ELISA |
1:500-1000 |
IHC-P |
1:200-400 |
IHC-F |
1:100-500 |
IF(IHC-P) |
1:50-200 |
IF(IHC-F) |
1:50-200 |
IF(ICC) |
1:50-200 |