Western blot shows lysates of TF-1 human erythroleukemic cell line and CHP-100 human neuroblastoma cell line. PVDF membrane was probed with 0.05 µg/mL of Goat Anti-Human PTP1B Antigen Affinity-purified Polyclonal ...read more
Genetic Strategies: Western blot shows lysates of HeLa human cervical epithelial carcinoma parental cell line and PTP1B knockout HeLa cell line (KO). PVDF membrane was probed with 0.3 µg/mL of Goat Anti-Human ...read more
Use a manual defrost freezer and avoid repeated freeze-thaw cycles.
12 months from date of receipt, -20 to -70 °C as supplied.
1 month, 2 to 8 °C under sterile conditions after reconstitution.
6 months, -20 to -70 °C under sterile conditions after reconstitution.
Buffer
Lyophilized from a 0.2 μm filtered solution in PBS with Trehalose. *Small pack size (SP) is supplied either lyophilized or as a 0.2 µm filtered solution in PBS.
Preservative
No Preservative
Concentration
LYOPH
Reconstitution Instructions
Reconstitute at 0.2 mg/mL in sterile PBS.
Notes
This product is produced by and ships from R&D Systems, Inc., a Bio-Techne brand.
Alternate Names for PTP1B/PTPN1 Antibody [Unconjugated]
EC 3.1.3.48
protein tyrosine phosphatase 1B
protein tyrosine phosphatase, non-receptor type 1
Protein-tyrosine phosphatase 1B
PTP1B
PTP-1B
PTP1Bprotein tyrosine phosphatase, placental
PTPN1
tyrosine-protein phosphatase non-receptor type 1
Background
Protein tyrosine phosphatase 1B (PTP1B) is an enzyme that removes phosphate groups covalently attached to tyrosine residues in proteins. This ubiquitously expressed enzyme is anchored in the endoplasmic reticulum by its C-terminal end and has its catalytic regions exposed to the cytosol. PTP1B will dephosphorylate a wide variety of phosphoproteins, such as receptors for the growth factors insulin and epidermal growth factor (EGF), c-Src and beta -catenin. Of particular interest is the observation that PTP1B knock-out mice are resistant to high-caloric intake-induced obesity and have exaggerated insulin responses, suggesting that PTP1B may play an important role in regulating growth factor responsiveness.
Angers-Loustau, et al. (1999) Biochem. Cell Biol. 77:493.
Sarmiento, et al. (1998) J. Biol. Chem. 273:26368.
Bjorge, et al. (2000) J. Biol. Chem. 52:41439.
Balsamo, et al. (1996) J. Cell Biol. 134:801.
Elchebly, et al. (1999) Science 283:1544.
Limitations
This product is for research use only and is not approved for use in humans or in clinical diagnosis. Primary Antibodies are guaranteed for 1 year from date of receipt.
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