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蛋白酪氨酸磷酸酶-1B抗體規(guī)格 全：公司提供上萬種產(chǎn)品，涵蓋了生物試劑，elisa試劑盒，標準品，培養(yǎng)基，原裝耗材，抗體、培養(yǎng)基、ATCC細胞等，基本上各種科研所需產(chǎn)品在我司都能找到。

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蛋白酪氨酸磷酸酶-1B抗體規(guī)格 英文名稱  Anti-PTP1B

中文名稱  蛋白酪氨酸磷酸酶-1B抗體規(guī)格 

別    名 PTP-1B; Non receptor tyrosine phosphatase 1; Protein tyrosine phosphatase 1B; Protein-tyrosine phosphatase 1B; Protein tyrosine phosphatase non receptor type 1; Protein tyrosine phosphatase placental; PTP 1B; PTPN 1; PTPN1; Tyrosine protein phosphatase non receptor type 1; PTP-HA2; Protein-tyrosine phosphatase HA2.

產(chǎn)品屬性：

濃    度  1mg/1ml

規(guī) 格  0.1ml/100μg 0.2ml/200μg

抗體來源  Rabbit

克隆類型   polyclonal

交叉反應   Human, Mouse, Rat, Pig, Cow, Horse, Rabbit

產(chǎn)品類型   一抗  

研究領域    細胞生物 神經(jīng)生物學 信號轉(zhuǎn)導 激酶和磷酸酶

蛋白分子量  predicted molecular weight: 48kDa 

性    狀   Lyophilized or Liquid

免 疫 原  KLH conjugated synthetic peptide derived from human PTP-1B C-terminus

亞    型  IgG

純化方法   affinity purified by Protein A

儲 存 液   0.01M PBS, pH 7.4 with 10 mg/ml BSA and 0.1% Sodium azide

蛋白酪氨酸磷酸酶-1B抗體規(guī)格 產(chǎn)品應用   WB=1:100-500 ELISA=1:500-1000 IP=1:20-100 IHC-P=1:100-500 IHC-F=1:100-500 ICC=1:100-500 IF=1:100-500

（石蠟切片需做抗原修復） 

 not yet tested in other applications.

 optimal dilutions/concentrations should be determined by the end user.  

保存條件  Store at -20 °C for one year. Avoid repeated freeze/thaw cycles. The lyophilized antibody is stable at room temperature for at least one month and for greater than a year when kept at -20°C. When reconstituted in sterile pH 7.4 0.01M PBS or diluent of antibody the antibody is stable for at least two weeks at 2-4 °C. 

Important Note  This product as supplied is intended for research use only, not for use in human, therapeutic or diagnostic applications. 

產(chǎn)品介紹 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 is a drug discovery target in the fields of diabetes and obesity. Insulin also influences the expression of splice variants of PTP1B.

PTP1B also interacts with Insulin and EGF receptors, and undergoes phosphorylation after receptor stimulation. Tyrosine phosphorylation at Tyr-66, Tyr-152, and Tyr-153 occurs after insulin receptor activation, and tyrosine phosphorylation of Tyr-152 may be required for interactions with N-Cadherin. In addition, Akt can phosphorylate Ser-50 and this phosphorylation can reduce PTP1B activity.

Function : Tyrosine-protein phosphatase which acts as a regulator of endoplasmic reticulum unfolded protein response. Mediates dephosphorylation of EIF2AK3/PERK; inactivating the protein kinase activity of EIF2AK3/PERK. 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

Subunit : Interacts with EPHA3 (phosphorylated); dephosphorylates EPHA3 and may regulate its trafficking and function.

Tissue Specificity : Most abundant in testis. Also found in kidney, spleen, muscle, liver, heart and brain.

Post-translational modifications : Ser-50 is the major site of phosphorylation as compared to Ser-242 and Ser-243. Activated by phosphorylation at Ser-50.

S-nitrosylation of Cys-215 inactivates the enzyme activity.

Sulfhydration at Cys-215 following endoplasmic reticulum stress inactivates the enzyme activity, promoting EIF2AK3/PERK activity.

蛋白酪氨酸磷酸酶1B（PTP1B）是一種信號的負性調(diào)節(jié)因子，與和的及發(fā)展關系密切。對P-tyr基因敲除小鼠的研究表明，缺失PTP1B小鼠的敏感性明顯增加，并對有一定的抵抗作用，而另一些對動物和人體的研究結(jié)果卻與此相反，發(fā)現(xiàn)PTP1B可通過引起抵抗、瘦素抵抗及影響脂代謝等而導致和的發(fā)生。一些特異性的Ptyr小分子抑制劑已經(jīng)開發(fā)并用于和的中。

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