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生物源
human
品質等級
重組細胞
expressed in E. coli
化驗
≥90% (SDS-PAGE)
形狀
liquid
比活性
≥20 U/mg
分子量
37,400 g/mol
製造商/商標名
Calbiochem®
儲存條件
OK to freeze
avoid repeated freeze/thaw cycles
運輸包裝
wet ice
儲存溫度
−70°C
基因資訊
human ... PTP1B(5770)
一般說明
在大肠埃希菌中表达的重组人PTP1B。PTP1B,是一种普遍存在的非跨膜蛋白酪氨酸磷酸酶,最初是在人类胎盘中发现。这种高活性酶可用于研究酪氨酸磷酸酶动力学、底物特异性以及抑制剂的筛选。
應用
Protein tyrosine phosphatase 1B (PTP1B), Human, Recombinant, E. coli has been used in the dephosphorylation assay of Glutathione S-transferase (GST) fusion proteins as well as in the in vitro kinase assays. It has also been used to construct a 66-member PTP1B library for discovery of enzyme inhibitors using click chemistry.
生化/生理作用
Protein tyrosine phosphatase 1B (PTP1B) serves as a crucial enzyme in dephosphorylating insulin receptor and its downstream signaling components. Furthermore, it participates in the negative regulation of the leptin signaling pathway by dephosphorylation of the upstream signaling molecules, leading to the suppression of the neuropeptide Y synthesis, an appetite-stimulating hormone. Improper functioning of PTP1B has been associated with a variety of human diseases, including cancer, diabetes, obesity and inflammation.
包裝
特定浓度批号请参考小瓶的标签。
警告
毒性:标准处理(A)
單位定義
一个单位定义为在30°C,pH 7.2下,使用150 µM底物,每分钟水解1 µmol磷酸肽底物(目录号539737)的酶量。
外觀
在50 mM HEPES,1 mM DTT,1 mM EDTA,0.05% NP-40,pH 7.2。
重構
初次解冻后,分装冻存(-70°C)。
其他說明
Puius, Y.A., et al. 1997.Proc.Natl.Acad.Sci. USA94, 13420.
Liu, F., et al. 1996.J. Biol. Chem.271, 31290.
Liu, F., et al. 1996.J. Biol. Chem.271, 31290.
法律資訊
CALBIOCHEM is a registered trademark of Merck KGaA, Darmstadt, Germany
儲存類別代碼
12 - Non Combustible Liquids
水污染物質分類(WGK)
WGK 1
閃點(°F)
Not applicable
閃點(°C)
Not applicable
Protein Tyrosine Phosphatase 1B (PTP1B) and Obesity
Vitamins and Hormones, 91, 405-424 (2013)
Human Protein Tyrosine Phosphatase 1B (PTP1B): From Structure to Clinical Inhibitor Perspectives
International Journal of Molecular Sciences, 23(13), 7027-7027 (2022)
KSHV-TK is a tyrosine kinase that disrupts focal adhesions and induces Rho-mediated cell contraction
The Embo Journal, 34(4), 448?465-448?465 (2015)
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