Human PTP1B Antibody

Catalog # Availability Size / Price Qty
MAB13662-100
MAB13662-SP
PTP1B  in Human Heart.
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Human PTP1B Antibody Summary

Species Reactivity
Human
Specificity
Detects human PTP1B in direct ELISAs.
Source
Monoclonal Mouse IgG2B Clone # 208607
Purification
Protein A or G purified from hybridoma culture supernatant
Immunogen
E. coli-derived recombinant human PTP1B
Glu2-Thr435
Accession # P18031
Formulation
Lyophilized from a 0.2 μm filtered solution in PBS with Trehalose. *Small pack size (SP) is supplied as a 0.2 µm filtered solution in PBS.
Label
Unconjugated

Applications

Recommended Concentration
Sample
Immunohistochemistry
1-25 µg/mL
See below

Please Note: Optimal dilutions should be determined by each laboratory for each application. General Protocols are available in the Technical Information section on our website.

Data Example

Immunohistochemistry PTP1B  in Human Heart. View Larger

PTP1B in Human Heart. PTP1B was detected in immersion fixed paraffin-embedded sections of human heart using Mouse Anti-Human PTP1B Monoclonal Antibody (Catalog # MAB1366) at 1.7 µg/mL for 1 hour at room temperature followed by incubation with the Anti-Mouse IgG VisUCyte™ HRP Polymer Antibody (Catalog # VC001). Before incubation with the primary antibody, tissue was subjected to heat-induced epitope retrieval using Antigen Retrieval Reagent-Basic (Catalog # CTS013). Tissue was stained using DAB (brown) and counterstained with hematoxylin (blue). Specific staining was localized to cytoplasm in cardiomyocytes. View our protocol for IHC Staining with VisUCyte HRP Polymer Detection Reagents.

Reconstitution Calculator

Reconstitution Calculator

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Preparation and Storage

Reconstitution
Reconstitute at 0.5 mg/mL in sterile PBS.
Shipping
The product is shipped at ambient temperature. Upon receipt, store it immediately at the temperature recommended below. *Small pack size (SP) is shipped with polar packs. Upon receipt, store it immediately at -20 to -70 °C
Stability & Storage
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.

Background: PTP1B

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. The recombinant protein lacks the C-terminal 114 amino acids but is fully active. 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.

References
  1. Angers-Loustau, et al. (1999) Biochem. Cell Biol. 77:493.
  2. Sarmiento, et al. (1998) J. Biol. Chem. 273:26368.
  3. Bjorge, et al. (2000) J. Biol. Chem. 52:41439.
  4. Balsamo, et al. (1996) J. Cell Biol. 134:801.
  5. Elchebly, et al. (1999) Science 283:1544.
Long Name
Protein Tyrosine Phosphatase 1B
Entrez Gene IDs
5770 (Human); 19246 (Mouse)
Alternate Names
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

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