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Key Documents

P6244

Sigma-Aldrich

Protein Tyrosine Phosphatase 1B human

recombinant, expressed in E. coli

Synonyme(s) :

PTP-1B

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About This Item

Numéro MDL:
Code UNSPSC :
12352204
Nomenclature NACRES :
NA.54

Produit recombinant

expressed in E. coli

Niveau de qualité

Forme

solution

Activité spécifique

≥20 units/mg protein

Poids mol.

37.4 kDa

Concentration

≥0.5 mg/mL

Numéro d'accès UniProt

Maladie(s) pertinente(s)

diabetes; obesity; cancer

Conditions d'expédition

dry ice

Température de stockage

−70°C

Informations sur le gène

human ... PTPN1(5770)

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Description générale

Protein tyrosine phosphatase 1B human (PTP1B) is encoded by the gene PTPN1. In human chromosome, the gene PTPN1 is localized on 20q13.13. The protein has 37 kDa catalytic domain and the C-terminal hydrophobic residues targets the protein to the cytoplasmic side of the endoplasmic reticulum membrane.

Application

Protein Tyrosine Phosphatase 1B (PTP1B) human has been used in treating cell lysate prior to immunoprecipitation and protein pull-down studies. It has also been used in PTP1B activity assay and also for the evaluation of inhibitors like betulinic acid (BA) and sodium orthovanadate (Na3VO4), and 6-chloro-3-formyl-7-methylchromone (CFM) on PTP1B.
Protein tyrosine phosphatase 1B (PTP1B) is a pharmaceutical target used to study the treatment of various diseases such as obesity, cancer and type II diabetes mellitus.
The inhibitory effect of 8-(4-chlorophenylthio)-cAMP and 8-(4-chlorophenylthio)-cGMP on protein tyrosine phosphatase-1B has been assayed.

Actions biochimiques/physiologiques

PTP-1B is a recombinant, non-transmembrane protein expressed in E. coli containing amino acid residues 1-322 of human PTP-1B. It has a molecular mass of 37.4 kDa. It is an abundant intracellular enzyme that is thought to act as a negative regulator of certain signaling pathways. It dephosphorylates tyrosine-phosphorylated proteins and peptides, and is usually localized in the cytostolic domain of the ER.
PTP1B dephosphorylates c-Src in several human breast cancer cell lines has a regulatory role for PTP1B in the control of c-Src kinase activity. PTP1B is regulates the cardiovascular effects of leptin. PTP1B controls the JAK/STAT signaling pathway by dephosphorylation of JAK2.
Polymorphism in the gene PTPN1 is associated with type 2 diabetes and obesity.

Définition de l'unité

One unit will hydrolyze 1.0 μmole of a phosphopeptide, EGFR fragment 988-998, per minute at pH 7.2 at 30 °C

Forme physique

Supplied as a solution in 50 mM HEPES (pH 7.2), 1 mM EDTA, 5 mM DTT, and 0.05% NP-40

Code de la classe de stockage

12 - Non Combustible Liquids

Classe de danger pour l'eau (WGK)

WGK 1

Point d'éclair (°F)

Not applicable

Point d'éclair (°C)

Not applicable


Certificats d'analyse (COA)

Recherchez un Certificats d'analyse (COA) en saisissant le numéro de lot du produit. Les numéros de lot figurent sur l'étiquette du produit après les mots "Lot" ou "Batch".

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Consulter la Bibliothèque de documents

Analysis of common PTPN1 gene variants in type 2 diabetes, obesity and associated phenotypes in the French population
Cheyssac C, et al.
BMC Medical Genetics, 7(1), 44-44 (2006)
p66Shc couples mechanical signals to RhoA through FAK-dependent recruitment of p115-RhoGEF and GEF-H1
Wu RF, et al.
Molecular and Cellular Biology, MCB-00194 (2016)
A colorimetric biosensor based on guanidinium recognition for the assay of protein tyrosine phosphatase 1B and its inhibitors
Lv J, et al.
New. J. Chem., 41(23), 14414-14419 (2017)
Shaowei Wang et al.
Frontiers in microbiology, 12, 715773-715773 (2021-08-03)
Human PTEN, a dual-phosphatase tumor suppressor, is frequently dysregulated by alternative splicing. Fungi harbor PTEN homologs, but alternative splicing of fungal PTENs has not been reported as far as we know. Here, we described an alternative splicing case in the
PTP1B: from the sidelines to the front lines!
Tonks NK
Febs Letters, 546(1), 140-148 (2003)

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