PTP1B

Size

£620.00

SKU:: 377574
Purity:: Purified by immunoaffinity chromatography.
Storage Conditions:: -20°C
Supplier:: United States Biological
Host:: Rabbit
Immunogen:: Synthetic peptide corresponding to aa4-30, EKEFEQIDKSGSWAAIYQDIRHEASDF from human PTP1B at N-terminal, different from the related mouse sequence by 3aa, and from the related rat sequence by 2aa.
Format:: Supplied as a lyophilized powder from PBS, 5% BSA, 0.05% sodium azide. Reconstitute with 200ul sterile ddH2O.
Extra Details:: Tyrosine-protein phosphatase non-receptor type 1, also known as protein-tyrosine phosphatase 1B (PTP1B), is the founding member of the protein tyrosine phosphatase (PTP) family, which was isolated and identified based on its enzymatic activity and aa sequence. PTPs catalyze the hydrolysis of the phosphate monoesters specifically on tyrosine residues. Members of the PTP family share a highly conserved catalytic motif, which is essential for the catalytic activity. PTPs are known to be signaling molecules that regulate a variety of cellular processes including cell growth, differentiation, mitotic cycle, and oncogenic transformation. This PTP has been shown to act as a negative regulator of insulin signaling by dephosphorylating the phosphotryosine residues of insulin receptor kinase. This PTP was also reported to dephosphorylate epidermal growth factor receptor kinase, as well as JAK2 and TYK2 kinases, which implicated the role of this PTP in cell growth control, and cell response to interferon stimulation. Applications: Suitable for use in Western Blot, Immunohistohemistry, Immunocytochemistry, flow cytometry. Other applications not tested. Recommended Dilution: Western Blot: 0.1-0.5ug/ml Immunohistochemistry (frozen): 0.5-1ug/ml Immunocytochemistry: 0.5-1ug/ml Flow Cytometry: 1-3ug/1x10e6 cells Optimal dilutions to be determined by the researcher. Storage and Stability: Lyophilized and reconstituted products are stable for 12 months after receipt at -20°C. Reconstitute with sterile dH2O. Aliquot to avoid repeated freezing and thawing. Store at -20°C. For maximum recovery of product, centrifuge the original vial after thawing and prior to removing the cap. Further dilutions can be made in assay buffer.

Shipping Conditions:: Blue Ice