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|Recombinant Human PTP1B / PTPN1 protein (Catalog#10304-H07E)|
|0.2 μm filtered solution in PBS with 5% trehalose|
|Produced in rabbits immunized with purified, recombinant Human PTP1B / PTPN1 (rh PTP1B / PTPN1; Catalog#10304-H07E; NP_002818.1; Glu 2-Asn 321). PTP1B / PTPN1 specific IgG was purified by Human PTP1B / PTPN1 affinity chromatography.|
|Human PTP1B / PTPN1|
|WB, ELISA, IHC-P|
WB: 10-20 μg/mL
ELISA: 0.1-0.2 μg/mL
This antibody can be used at 0.1-0.2 μg/mL with the appropriate secondary reagents to detect Human PTPN1. The detection limit for Human PTPN1 is less than 0.039 ng/well.
IHC-P: 0.1-2 μg/mL
|This antibody can be stored at 2℃-8℃ for one month without detectable loss of activity. Antibody products are stable for twelve months from date of receipt when stored at -20℃ to -70℃. Preservative-Free.|
Sodium azide is recommended to avoid contamination (final concentration 0.05%-0.1%). It is toxic to cells and should be disposed of properly. Avoid repeated freeze-thaw cycles.
Immunochemical staining of human PTPN1 in human breast cancer with rabbit polyclonal antibody (1 µg/mL, formalin-fixed paraffin embedded sections).
Immunochemical staining of human PTPN1 in human tonsil with rabbit polyclonal antibody (1 µg/mL, formalin-fixed paraffin embedded sections).
PTP1B, also known as PTPN1, belongs to the protein-tyrosine phosphatase (PTP) family. 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. PTP1B contains 1 tyrosine-protein phosphatase domain and is expressed in many tissues. PTP1B is localized to the cytoplasmic face of the endoplasmic reticulum. It has been shown to act as a negative regulator of insulin signaling by dephosphorylating the phosphotryosine residues of insulin receptor kinase. PTP1B was also reported to dephosphorylate epidermal growth factor receptor kinase, as well as JAK2 and TYK2 kinases, which implicated the role of PTP1B in cell growth control, and cell response to interferon stimulation.