A. Western blot analysis on Hela cell lysates using anti-Phospho-PTP1B (pS50) RabMAb (Cat. #AJ1665e), 1:5000 dilution. Cells were either (A) untreated (B) treated with Calyculin A.
PTPN1 PTP1B Tyrosine-protein phosphatase non-receptor type 1 Protein-tyrosine phosphatase 1B
Molecular Weight(MW)
49967 Da
Function
Tyrosine-protein phosphatase which acts as a regulator of endoplasmic reticulum unfolded protein response. Mediates dephosphorylation of EIF2AK3/PERK; inactivating the protein kinase activity of EIF2AK3/PERK. May play an important role in CKII- and p60c-src-induced signal transduction cascades. May regulate the EFNA5-EPHA3 signaling pathway which modulates cell reorganization and cell-cell repulsion
Tissue Specificity
A phospho specific peptide corresponding to residues surround Serine 50 of human PTP1B was used as an immunogen. This antibody detects PTP1B phosphorylated at Serine 50.
Cellular Localization
Endoplasmic reticulum membrane; Peripheral membrane protein; Cytoplasmic side. Note=Interacts with EPHA3 at the cell membrane
A. Western blot analysis on Hela cell lysates using anti-Phospho-PTP1B (pS50) RabMAb (Cat. #AJ1665e), 1:5000 dilution. Cells were either (A) untreated (B) treated with Calyculin A.
Application Notes
WB:1:1000~10000
Additional Information
Form
Liquid
Storage Instructions
For short-term storage, store at 4° C. For long-term storage, aliquot and store at -20ºC or below. Avoid multiple freeze-thaw cycles.
Storage Buffer
50 mM Tris-Glycine (pH 7.4), 0.15 M NaCl, 40% Glycerol, 0.01% sodium azide and 0.05% BSA.