PTPRC (also known as CD45),T cells require the protein tyrosine phosphatase CD45 to detect and respond to antigen because it activates the Src family kinase Lck, which phosphorylates the T cell antigen receptor (TCR) complex. CD45 ativates Lck by opposing the negative regulatory kinase Csk. Paradoxically, CD45 has also been implicated in suppressing TCR signaling by dephosphorylating the same signaling motifs within the TCR complex upon which Lck acts.
Pack Size | Availability | Price/USD | Quantity |
---|---|---|---|
100 μg | 5 days | $ 487.00 | |
500 μg | 5 days | $ 1,950.00 | |
1 mg | 5 days | $ 3,250.00 |
Description | PTPRC (also known as CD45),T cells require the protein tyrosine phosphatase CD45 to detect and respond to antigen because it activates the Src family kinase Lck, which phosphorylates the T cell antigen receptor (TCR) complex. CD45 ativates Lck by opposing the negative regulatory kinase Csk. Paradoxically, CD45 has also been implicated in suppressing TCR signaling by dephosphorylating the same signaling motifs within the TCR complex upon which Lck acts. |
Species | Human |
Expression System | HEK293 |
Tag | C-His-Avi |
Accession Number | P08575-4 |
Synonyms | CD45R, LY5, EC 3.1.3.48, B220, CD45, T200, L-CA, GP180, LCA, PTPRC |
Construction | Recombinant Human CD45/PTPRC Protein is expressed from HEK293 with His tag and Avi tag at the C-Terminus. It contains Gln26-Ile416.[Accession |P08575-4] |
Protein Purity | > 95% as determined by Tris-Bis PAGE; > 95% as determined by HPLC |
Molecular Weight | The protein has a predicted MW of 47.3 kDa. Due to glycosylation, the protein migrates to 80-110 kDa based on Tris-Bis PAGE result. |
Endotoxin | Less than 1EU per μg by the LAL method. |
Formulation | Lyophilized from 0.22μm filtered solution in PBS (pH 7.4). Normally 8% trehalose is added as protectant before lyophilization. |
Reconstitution | Centrifuge the tube before opening. Reconstituting to a concentration more than 100 μg/ml is recommended. Dissolve the lyophilized protein in distilled water. |
Stability & Storage |
-20 to -80°C for 12 months as supplied from date of receipt. -20 to -80°C for 3-6 months in unopened state after reconstitution. 2-8°C for 2-7 days after reconstitution. Recommend to aliquot the protein into smaller quantities for optimal storage. Please minimize freeze-thaw cycles. |
Shipping |
In general, recombinant proteins are provided as lyophilized powder which are shipped at ambient temperature.Bulk packages of recombinant proteins are provided as frozen liquid. They are shipped out with blue ice unless customers require otherwise. |
Research Background | PTPRC (also known as CD45),T cells require the protein tyrosine phosphatase CD45 to detect and respond to antigen because it activates the Src family kinase Lck, which phosphorylates the T cell antigen receptor (TCR) complex. CD45 ativates Lck by opposing the negative regulatory kinase Csk. Paradoxically, CD45 has also been implicated in suppressing TCR signaling by dephosphorylating the same signaling motifs within the TCR complex upon which Lck acts. |
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Please read the User Guide of Recombinant Proteins for more specific information.
CD45 Protein, Human, Recombinant (His & Avi) CD 45 CD45R T 200 LY5 EC 3.1.3.48 B-220 B220 CD-45 CD45 T200 T-200 B 220 LY 5 GP-180 L-CA GP 180 GP180 LY-5 LCA PTPRC recombinant recombinant-proteins proteins protein