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[KO驗證抗體] PTPN1 Rabbit pAb (bs-55182R)  
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50ul/1180.00元
100ul/1980.00元
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產品編號 bs-55182R
英文名稱 [KO驗證抗體] PTPN1 Rabbit pAb
中文名稱 蛋白酪氨酸磷酸酶-1B抗體
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; PTN1_HUMAN.  
研究領域 細胞生物  神經生物學  信號轉導  激酶和磷酸酶  
抗體來源 Rabbit
克隆類型 Polyclonal
克 隆 號
交叉反應 Human,Rat (predicted: Mouse,Rabbit,Pig,Cow,Horse)
產品應用 WB=1:500-2000,IHC-P=1:100-500,IHC-F=1:100-500,IF=1:100-500,Flow-Cyt=1ug/Test,ICC/IF=1:100
not yet tested in other applications.
optimal dilutions/concentrations should be determined by the end user.
理論分子量 48 kDa
檢測分子量
細胞定位 細胞漿 細胞膜 
性    狀 Liquid
濃    度 1mg/ml
免 疫 原 Recombinant human PTPN1: 281-435/435 
亞    型 IgG
純化方法 affinity purified by Protein A
緩 沖 液 0.01M TBS (pH7.4) with 1% BSA, 0.02% Proclin300 and 50% Glycerol.
保存條件 Store at -20℃ 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 antib
注意事項 This product as supplied is intended for research use only, not for use in human, therapeutic or diagnostic applications.
PubMed PubMed
產品介紹 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.

Subcellular Location:
Endoplasmic reticulum membrane; Peripheral membrane protein; Cytoplasmic side. Note=Interacts with EPHA3 at the cell membrane.

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.

SWISS:
P18031

Gene ID:
5770

Database links:

Entrez Gene: 5770 Human

Entrez Gene: 19246 Mouse

Entrez Gene: 24697 Rat

Omim: 176885 Human

SwissProt: P18031 Human

SwissProt: P35821 Mouse

SwissProt: P20417 Rat

Unigene: 417549 Human

Unigene: 277916 Mouse

Unigene: 11317 Rat



蛋白酪氨酸磷酸酶1B(PTP1B)是一種胰島素信號的負性調節因子,與肥胖癥和2型糖尿病的發病及發展關系密切。對P-tyr基因敲除小鼠的研究表明,缺失PTP1B小鼠的胰島素敏感性明顯增加,并對肥胖有一定的抵抗作用,而另一些對動物和人體的研究結果卻與此相反,發現PTP1B可通過引起胰島素抵抗、瘦素抵抗及影響脂代謝等而導致肥胖癥和2型糖尿病的發生。一些特異性的Ptyr小分子抑制劑已經開發并用于肥胖和糖尿病的治療中。
產品圖片
Sample: Lane 1: Hela (Human) Cell Lysate at 30 ug Lane 2: K562 (Human) Cell Lysate at 30 ug Lane 3: Huvec (Human) Cell Lysate at 30 ug Lane 4: U87MG (Human) Cell Lysate at 30 ug Primary: Anti- PTPN1 (bs-55182R) at 1/1000 dilution Secondary: IRDye800CW Goat Anti-Rabbit IgG at 1/20000 dilution Predicted band size: 50 kD Observed band size: 47 kD
Paraformaldehyde-fixed, paraffin embedded (mouse brain); Antigen retrieval by boiling in sodium citrate buffer (pH6.0) for 15min; Block endogenous peroxidase by 3% hydrogen peroxide for 20 minutes; Blocking buffer (normal goat serum) at 37°C for 30min; Antibody incubation with (PTPN1) Polyclonal Antibody, Unconjugated (bs-55182R) at 1:100 overnight at 4°C, followed by operating according to SP Kit(Rabbit) (sp-0023) instructionsand DAB staining.
Paraformaldehyde-fixed, paraffin embedded (rat brain); Antigen retrieval by boiling in sodium citrate buffer (pH6.0) for 15min; Block endogenous peroxidase by 3% hydrogen peroxide for 20 minutes; Blocking buffer (normal goat serum) at 37°C for 30min; Antibody incubation with (PTPN1) Polyclonal Antibody, Unconjugated (bs-55182R) at 1:100 overnight at 4°C, followed by operating according to SP Kit(Rabbit) (sp-0023) instructionsand DAB staining.
MCF7 cell; 4% Paraformaldehyde-fixed; Triton X-100 at room temperature for 20 min; Blocking buffer (normal goat serum, C-0005) at 37°C for 20 min; Antibody incubation with (KO Validated)PTPN1 polyclonal Antibody, Unconjugated (bs-55182R) 1:100, 90 minutes at 37°C; followed by a conjugated Goat Anti-Rabbit IgG antibody at 37°C for 90 minutes, DAPI (blue, C02-04002) was used to stain the cell nuclei.
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