The antibody recognizes an epitope located in the C-terminal domain of Csk-binding protein (Cbp / PAG), a 46 kDa ubiquitously expressed transmembrane adaptor protein present in membrane rafts (glycosphingolipid-enriched microdomains), which however migrates on SDS PAGE gels anomalously as an 80 kDa molecule.
Purification
Protein-A affinity chromatography
Purity
> 95 % pure by SDS-PAGE
Immunogen
C-terminal peptide (last 15 amino acids) of human Csk binding protein coupled to KLH
PAG1
Reactivity: Human
WB
Host: Rabbit
Polyclonal
unconjugated
Application Notes
Immunoprecipitation. Positive control: RAJI human Burkitt lymphoma cell line. Other applications not tested. Optimal dilutions are dependent on conditions and should be determined by the user.
Restrictions
For Research Use only
Concentration
1.0 mg/mL
Buffer
Phosphate buffered saline (PBS) with 15 mM sodium azide, approx. pH 7.4
Preservative
Sodium azide
Precaution of Use
This product contains sodium azide: a POISONOUS AND HAZARDOUS SUBSTANCE which should be handled by trained staff only.
Storage
4 °C/-20 °C
Storage Comment
Store the antibody at 2 - 8 °C up to one month or (in aliquots) at -20 °C for longer. Avoid repeated freezing and thawing. Shelf Life: one year from despatch.
Expiry Date
12 months
Target
PAG1
(phosphoprotein Associated with Glycosphingolipid Microdomains 1 (PAG1))
PAG (phosphoprotein associated with GEMs), also known as Cbp (Csk-binding protein), is a ubiquitously expressed 46 kDa transmembrane adaptor protein present in membrane rafts (glycosphingolipid-enriched microdomains), which however migrates on SDS PAGE gels anomalously as an 80 kDa molecule. Following tyrosine phosphorylation by Src family kinases, PAG binds and thereby activates the protein tyrosine kinase Csk, the major negative regulator of the Src family kinases. Signaling via the B-cell receptor in B cells or high affinity IgE receptor (FcepsilonRI) in mast cells leads to PAG increased tyrosine phosphorylation and Csk binding, while T cell receptor signaling causes PAG dephosphorylation, loss of Csk binding and increased activation of the protein tyrosine kinase Lck.Synonyms: CBP, PAG, Phosphoprotein associated with glycosphingolipid-enriched microdomains 1, Transmembrane adapter protein PAG, Transmembrane phosphoprotein Cbp