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SIRP alpha V5 Protein, Human, Recombinant (His & Avi), Biotinylated

(Synonyms: SIRPA, SIRP α V5, SIRP α, SIRP alpha, SHPS-1, SHPS1, PTPNS1, P84, MYD-1, MYD1, MFR, CD172a, BIT) Copy Product Info

Synonyms: SIRPA, SIRP α V5, SIRP α, SIRP alpha, SHPS-1, SHPS1, PTPNS1, P84, MYD-1, MYD1, MFR, CD172a, BIT

Catalog No. TMPK-01363 Copy Product Info
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. SIRP alpha V5 Protein, Human, Recombinant (His & Avi), Biotinylated is expressed in HEK293 mammalian cells with C-His-Avi tag. The predicted molecular weight is 40 kDa and the accession number is P78324 variant 5.

Product Introduction

Bioactivity
Bioactivity
Immobilized Biotinylated Human SIRP alpha V5, His Tag at 0.5μg/ml (100μl/well) on the streptavidin precoated plate (5μg/ml). Dose response curve for Human CD47, hFc Tag with the EC50 of 27.4ng/ml determined by ELISA.
Description
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. SIRP alpha V5 Protein, Human, Recombinant (His & Avi), Biotinylated is expressed in HEK293 mammalian cells with C-His-Avi tag. The predicted molecular weight is 40 kDa and the accession number is P78324 variant 5.
Species
Human
Expression System
HEK293 Cells
TagC-His-Avi
Accession NumberP78324 variant 5
ConstructionGlu31-Arg370(S42F)
Protein Purity
> 95% as determined by Tris-Bis PAGE; > 95% as determined by HPLC
Endotoxin< 1.0 EU/μg of the protein as determined by the LAL method.
FormulationLyophilized from a solution filtered through a 0.22 μm filter, containing PBS (pH 7.4). Typically, 8% trehalose is incorporated as a protective agent before lyophilization.
ReconstitutionReconstitute the lyophilized protein in distilled water. The product concentration should not be less than 100 μg/ml. Before opening, centrifuge the tube to collect powder at the bottom. After adding the reconstitution buffer, avoid vortexing or pipetting for mixing.
SynonymsSIRPA, SIRP α V5, SIRP α, SIRP alpha, SHPS-1, SHPS1, PTPNS1, P84, MYD-1, MYD1, MFR, CD172a, BIT
Research 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.
Chemical Properties
Molecular Weight40 kDa (predicted). Due to glycosylation, the protein migrates to 55-65 kDa based on Tris-Bis PAGE result.
Storage & Solubility Information
ShippingIn general, lyophilized powders are shipped with blue ice, while solutions are shipped with dry ice.
StorageIt is recommended to store recombinant proteins at -20°C to -80°C for future use. Lyophilized powders can be stably stored for over 12 months, while liquid products can be stored for 6-12 months at -80°C. For reconstituted protein solutions, the solution can be stored at -20°C to -80°C for at least 3 months. Please avoid multiple freeze-thaw cycles and store products in aliquots.

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Keywords

Related Tags: SIRP alpha V5 Protein, Human, Recombinant (His & Avi), Biotinylated chemical structure | SIRP alpha V5 Protein, Human, Recombinant (His & Avi), Biotinylated molecular weight