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Die folgenden MAPmates™ sollten nicht zusammen analysiert werden: -MAPmates™, die einen unterschiedlichen Assaypuffer erfordern. -Phosphospezifische und MAPmate™ Gesamtkombinationen wie Gesamt-GSK3β und Gesamt-GSK3β (Ser 9). -PanTyr und locusspezifische MAPmates™, z.B. Phospho-EGF-Rezeptor und Phospho-STAT1 (Tyr701). -Mehr als 1 Phospho-MAPmate™ für ein einziges Target (Akt, STAT3). -GAPDH und β-Tubulin können nicht mit Kits oder MAPmates™, die panTyr enthalten, analysiert werden.
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48-602MAG
Buffer Detection Kit for Magnetic Beads
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Anti-PTP1B Antibody, clone FG6-1G is an antibody against PTP1B for use in Western Blotting, Immunoprecipitation.
More>>Anti-PTP1B Antibody, clone FG6-1G is an antibody against PTP1B for use in Western Blotting, Immunoprecipitation. Less<<
Anti-PTP1B Antibody, clone FG6-1G: SDB (Sicherheitsdatenblätter), Analysenzertifikate und Qualitätszertifikate, Dossiers, Broschüren und andere verfügbare Dokumente.
PTP1B is the prototypic member of the protein tyrosine phosphatase (PTP) family, which comprises at least 37 proteins. The family is characterized by a catalytic phosphatase domain of approximately 240 amino acids, and includes both transmembrane and cytosolic enzymes. The PTPs have high substrate specificity for phosphotyrosyl proteins. At the primary sequence level, PTPs share little similarity with the protein serine phosphatases, protein threonine phosphatases, or the acid and alkaline phosphatases. PTP1B is a negative regulator of insulin and leptin signal transduction and may be a potential therapeutic target for diabetes and obesity. Insulin also influences the expression of splice variants of PTP1B.
References
Product Information
Format
Purified
Control
TF-1 cell lysate
Presentation
Purified mouse monoclonal IgG2aκ in buffer containing 0.1 M Tris-Glycine (pH 7.4), 150 mM NaCl with 0.05% sodium azide.
Anti-PTP1B Antibody, clone FG6-1G is an antibody against PTP1B for use in Western Blotting, Immunoprecipitation.
Key Applications
Western Blotting
Immunoprecipitation
Application Notes
Western Blot Analysis: A representative lot was used to detect PTP1B in Jurkat cell lysate.
Immunoprecipitation Analysis: A representative lot from an independent laboratory detected PTP1B in A431 cell lysate (Gulati, P. et al. (2004). EMBO Rep. 5(8):812-817.).
Biological Information
Immunogen
Recombinant protein corresponding to the catalytic domain of human PTP1B.
Epitope
Catalytic domain
Clone
FG6-1G
Concentration
Please refer to the Certificate of Analysis for the lot-specific concentration.
Host
Mouse
Specificity
This antibody recognizes the catalytic domain of PTP1B.
The protein encoded by this gene is the founding member of the protein tyrosine phosphatase (PTP) family, which was isolated and identified based on its enzymatic activity and amino acid 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.
FUNCTION: 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.
CATALYTIC ACTIVITY: Protein tyrosine phosphate + H2O = protein tyrosine + phosphate.
SUBUNIT STRUCTURE: Interacts with EPHA3 (phosphorylated); dephosphorylates EPHA3 and may regulate its trafficking and function.
SUBCELLULAR LOCATION: Endoplasmic reticulum membrane; Peripheral membrane protein; Cytoplasmic side. Note: Interacts with EPHA3 at the cell membrane.
POST-TRANSLATIONAL MODIFICATION: Oxidized on Cys-215; the Cys-SOH formed in response to redox signaling reacts with the alpha-amido of the following residue to form a sulfenamide cross-link, triggering a conformational change that inhibits substrate binding and activity. The active site can be restored by reduction. Ser-50 is the major site of phosphorylation as compared to Ser-242 and Ser-243. Activated by phosphorylation at Ser-50.
SEQUENCE SIMILARITIES: Belongs to the protein-tyrosine phosphatase family. Non-receptor class 1 subfamily. Contains 1 tyrosine-protein phosphatase domain.
Molecular Weight
~50 kDa observed
Physicochemical Information
Dimensions
Materials Information
Toxicological Information
Safety Information according to GHS
Safety Information
Product Usage Statements
Quality Assurance
Evaluated by Western Blot in TF-1 cell lysate.
Western Blot Analysis: 1 µg/mL of this antibody detected PTP1B in 10 µg of TF-1 cell lysate.
Usage Statement
Unless otherwise stated in our catalog or other company documentation accompanying the product(s), our products are intended for research use only and are not to be used for any other purpose, which includes but is not limited to, unauthorized commercial uses, in vitro diagnostic uses, ex vivo or in vivo therapeutic uses or any type of consumption or application to humans or animals.
UV irradiation causes inflammatory and proliferative cellular responses. We have proposed previously that these effects are, to a large extent, caused by the ligand-independent activation of several receptor tyrosine kinases due to the inactivation of their negative control elements, the protein tyrosine phosphatases (PTPs). We examined the mechanism of this inactivation and found that, in addition to reversible oxidation of PTPs, UV triggers a novel mechanism: induced degradation of PTPs by calpain, which requires both calpain activation and substrate PTP oxidative modification. This as yet unrecognized effect of UV is irreversible, occurs predominantly with UVA and UVB, the range of wavelengths in sunlight that reach the skin surface, and at physiologically relevant doses.
