Overview
| Product name | Biotinylated Recombinant Human SIRP-alpha/CD172a Protein |
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| Catalog No. | RP02561B |
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| Description | Biotinylated Recombinant Human SIRP alpha V6 Protein is expressed from Expi293 with His tag and Avi tag at the C-terminal.；It contains Glu31-Arg370. (The difference with SIRP alpha is in amino acid number 105, change from Ser105 to Pro105.) |
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| Purity | > 95% by Tris-Bis PAGE and HPLC |
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| Endotoxin | < 1 EU/μg of the protein by LAL method. |
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| Formulation | Lyophilized from a 0.22 μm filtered solution of PBS, pH 7.4. Normally 8% trehalose is added as protectant before lyophilization. Contact us for customized product form or formulation. |
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| Species | Human |
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| Calculated MW | 39.9 kD |
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Background
Signal regulatory protein α (SIRPα) is a regulatory membrane glycoprotein from SIRP family expressed mainly by myeloid cells and also by stem cells or neurons.SIRPα acts as inhibitory receptor and interacts with a broadly expressed transmembrane protein CD47 also called the "don′t eat me" signal.Cancer cells highly expressed CD47 that activate SIRP α and inhibit macrophage-mediated destruction.
Product information
| Synonym | CD172a; BIT; MFR; MYD1; MYD-1; P84; PTPNS1; SHP substrate 1; SHPS1; SHPS-1; SHPS1CD172A; SIRP alpha; SIRPA; Sirp-alpha-1; SIRPalpha2; Sirp-alpha-2; Sirp-alpha-3 |
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| Expression Host | HEK293 cells |
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| Tag | C-His&Avi |
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| Swiss-Prot | |
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| Gene ID | |
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Usage guide
| Storage | Store at -20℃. Store the lyophilized protein at -20℃ to -80℃ up to 1 year from the date of receipt.
After reconstitution, the protein solution is stable at -20℃ for 3 months, at 2-8℃ for up to 1 week. |
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| Reconstitution | Centrifuge the tube before opening. Reconstitute to a concentration of 0.1-0.5 mg/mL in sterile distilled water. Avoid vortex or vigorously pipetting the protein. For long term storage, it is recommended to add a carrier protein or stablizer (e.g. 0.1% BSA, 5% HSA, 10% FBS or 5% Trehalose), and aliquot the reconstituted protein solution to minimize free-thaw cycles. |
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* For research use only. Not for therapeutic or diagnostic purposes.
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