Phsophotyrosine (pTyr) antibody (HRP)

Antigen: Phsophotyrosine

Binding Site: pTyr

Clonality: Polyclonal

Host: Rabbit

Conjugate: HRP

Application: Western Blotting (WB)

Catalog no.: ABIN361843

Additional Information

UniProt: N/A

Immunogen: Phosphotyrosine conjugated to KLH

Description: Protein phosphorylation is an important posttranslational modification that serves many key functions to regulate a protein’s activity, localization, and protein-protein interactions. Phosphorylation is catalyzed by various specific protein kinases, which involves removing a phosphate group from ATP and covalently attaching it to to a recipient protein that acts as a substrate. Most kinases act on both serine and threonine, others act on tyrosine, and a number (dual specificity kinases) act on all three. Because phosphorylation can occur at multiple sites on any given protein, it can therefore change the function or localization of that protein at any time. Changing the function of these proteins has been linked to a number of diseases, including cancer, diabetes, heart disease, inflammation and neurological disorders. In particular, the phosphorylation of tyrosine is considered one of the key steps in signal transduction and regulation of enzymatic activity. Phosphotyrosine can be detected through specific antibodies, and are helpful in facilitating the identification of tyrosine kinase substrates.

Specificity: Recognizes proteins phosphorylated on tyrosine residues. Does not cross-react with phosphoserine or threonine.

Application Details

Concentration: 0.25mg/mL

Purification: Rabbit immunoglobulin

Buffer: PBS, 50% glycerol

Preservative: 0.09% sodium azide

Storage: Store at -20° C. Shipping Temperature: Blue Ice or 4° C

Research Area: Cell Signaling, Phosphorylation

Restrictions: For Research Use only

Publications

Ross, Baltimore, Eisen: "Phosphotyrosine-containing proteins isolated by affinity chromatography with antibodies to a synthetic hapten." in: Nature, Vol. 294, Issue 5842, pp. 654-6, 1982 (PubMed).

Frackelton, Ross, Eisen: "Characterization and use of monoclonal antibodies for isolation of phosphotyrosyl proteins from retrovirus-transformed cells and growth factor-stimulated cells." in: Molecular and cellular biology, Vol. 3, Issue 8, pp. 1343-52, 1983 (PubMed).

Ostrovsky, Maloy: "Protein phosphorylation on serine, threonine, and tyrosine residues modulates membrane-protein interactions and transcriptional regulation in Salmonella typhimurium." in: Genes & development, Vol. 9, Issue 16, pp. 2034-41, 1995 (PubMed).

Pawson, Saxton: "Signaling networks--do all roads lead to the same genes?" in: Cell, Vol. 97, Issue 6, pp. 675-8, 1999 (PubMed).

Blume-Jensen, Hunter: "Oncogenic kinase signalling." in: Nature, Vol. 411, Issue 6835, pp. 355-65, 2001 (PubMed).

Downward: "The ins and outs of signalling." in: Nature, Vol. 411, Issue 6839, pp. 759-62, 2001 (PubMed).

Goto, Kiyono, Tomono et al.: "Complex formation of Plk1 and INCENP required for metaphase-anaphase transition." in: Nature cell biology, Vol. 8, Issue 2, pp. 180-7, 2006 (PubMed).