半岛bd体育手机客户端 说明
一般描述
Protein tyrosine phosphatase, receptor type C (PTPRC) or leucocyte common antigen CD45 is expressed on T-cells and is found in multiple isoforms. The extracellular domain of the protein is predicted to have an amino-terminal mucin-like segment, a cysteine-rich domain and three fibronectin type 3 domains. The gene encoding this protein is localized on human chromosome 1q31.3.
Protein tyrosine phosphatase. Catalytic domain, (584-1256) (Gene bank accession number NM_080922) with N-terminal His tag, MW = 75 kDa, expressed in a Baculovirus Sf9 expression system.
应用
Useful for the study of enzyme kinetics, regulation, and to dephosphorylate target substrates.
生化/生理作用
Protein tyrosine phosphatase, receptor type C (PTPRC) or leucocyte common antigen CD45 acts as a protein tyrosine phosphatase in leucocyte signaling. It has a role in flow cytometric diagnostics in leukemia. By dephosphorylation of Src kinases, the protein acts as a regulator of antigen receptor signaling in T and B cells. As a negative regulator of Janus kinases, CD45 inhibits cytokine receptor signaling.
单位定义
One unit will hydrolyze 1 nmol p-nitrophenyl phosphate per minute at pH 7.4 and 30℃.
外形
Formulation: recombinant proteins were eluted in 25 mM Tris-HCL, 75 mM NaCl, pH 8.0, 0.05% Tween, 5 mM DTT and 50% glycerol.
制备说明
Thaw on ice. Upon first thaw, briefly spin tube containing enzyme to recover full content of the tube. Aliquot enzyme into single use aliquots. Store remaining undiluted enzyme in aliquots at -70℃. Note: Enzyme is very sensitive to freeze/thaw cycles.
基本信息
| NACRES | NA.32 |
半岛bd体育手机客户端 性质
| 生物来源 | human |
| 重组 | expressed in baculovirus infected insect cells |
| 测定 | ≥90% (SDS-PAGE) |
| 形式 | aqueous solution |
| 分子量 | 75 kDa |
| 包装 | pkg of 20 μg |
| 储存条件 | avoid repeated freeze/thaw cycles |
| 浓度 | >0.02 mg/mL |
| NCBI登记号 | NM_080922 |
| UniProt登记号 | P08575 |
| 运输 | dry ice |
| 储存温度 | ?70℃ |
| Gene Information | human ... PTPRC(5788) |
安全信息
| 储存分类代码 | 12 - Non Combustible Liquids |
| WGK | WGK 1 |
| 闪点(F) | Not applicable |
| 闪点(C) | Not applicable |
Sigma-Aldrich
m.cnreagent.com
