CstF-64 Polyclonal Antibody

• 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.

• 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.

• Gene ID:

  23283

• Cellular Locus:

  Nucleus

• Host:

  Rabbit

• Immunogen:

  61-160/616

• Target:

  CstF-64

• Clonality:

  Polyclonal

• Isotype:

  IgG

• Conjugation:

  Unconjugated

• Source:

  KLH conjugated synthetic peptide derived from human CSTF2T/CstF-64

• Applications:

  WB, ELISA, IHC-P, IHC-F, IF (IHC-P), IF (IHC-F), IF (ICC)

• Purification:

  Purified by Protein A.

• Concentration:

  1µg/µl

• 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)

• Buffer:

  0.01M TBS (pH7.4) with 1% BSA, 0.02% Proclin300 and 50% Glycerol.

• Modification:

  Unmodified

• Storage Conditions:

  Shipped at 4°C. Store at -20°C for one year. Avoid repeated freeze/thaw cycles.

• Gene ID URL:

  23283

• Predicted Cross Reactivity:

  Human, Mouse, Rat, Cow, Sheep, Pig, Horse, Rabbit