Biotinylated Human SIRP alpha V5 Protein (SRP-HM4V5B)
Catalog: SRP-HM4V5B
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Product Description | Recombinant Biotinylated Human SIRP alpha V5 Protein is expressed from HEK293 with His tag and Avi tag at the C-Terminus.It contains Glu31-Arg370(S42F). |
Product 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 Category |
Recombinant Protein |
Target |
SIRP alpha V5 |
Synonyms | 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 |
Accession | |
Species |
Human |
Amino Acid Range |
Glu31-Arg370(S42F) |
Molecular Weight | The protein has a predicted MW of 40 kDa. Due to glycosylation, the protein migrates to 55-65 kDa based on Tris-Bis PAGE result. |
Activity |
Immobilized Biotinylated Human SIRP alpha V5, His Tag at 1ug/ml (100ul/well) on the streptavidin precoated plate (5ug/ml). Dose response curve for Human CD47, hFc Tag with the EC50 of 5.2ng/ml determined by ELISA. See testing image for detail. |
Product Tag |
C-His-Avi |
Express System |
HEK293 |
Purity | > 95% as determined by Tris-Bis PAGE;> 95% as determined by HPLC |
Endotoxin | Less than 1EU per ug by the LAL method. |
Form | Lyophilized |
Shipping | Shipped at ambient temperature. |
Formulation | Lyophilized from 0.22um 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 ug/ml is recommended. Dissolve the lyophilized protein in distilled water. |
Stability And Storage | Reconstituted protein stable at -80°C for 12 months, 4°C for 1 week. Use a manual defrost freezer and avoid repeated freeze-thaw cycles. |
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