Human SIRP alpha V8 Protein (SRP-HM4V8)

  • Express System: HEK293
  • Product Tag: C-His-Avi
  • Purity: > 95% as determined by Tris-Bis PAGE;> 95% as determined by HPLC
  • Activity: Immobilized Human SIRP alpha V8, His Tag at 1ug/ml (100ul/Well) on the plate. Dose response curve for Human CD47, hFc Tag with the EC50 of 71.3ng/ml determined by ELISA. See testing image for detail.
  • Exact Sequence: Glu31-Arg369(S44L, S50T, I52T, H54R, V57A)

Catalog: SRP-HM4V8

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Product Description Recombinant Human SIRP alpha V8 Protein is expressed from HEK293 with His tag and Avi tag at the C-Terminus.It contains Glu31-Arg369(S44L, S50T, I52T, H54R, V57A).

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 V8
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

Gene/Protein ID

ATD50864.1

Species

Human

Exact Sequence

Glu31-Arg369(S44L, S50T, I52T, H54R, V57A)
Molecular Weight The protein has a predicted MW of 40.1 kDa. Due to glycosylation, the protein migrates to 52-68 kDa based on Tris-Bis PAGE result.

Activity

Immobilized Human SIRP alpha V8, His Tag at 1ug/ml (100ul/Well) on the plate. Dose response curve for Human CD47, hFc Tag with the EC50 of 71.3ng/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.
Immobilized Human SIRP alpha V8, His Tag at 1ug/ml (100ul/Well) on the plate. Dose response curve for Human CD47, hFc Tag with the EC50 of 71.3ng/ml determined by ELISA.
The purity of Human Sirpa V8 is greater than 95% as determined by SEC-HPLC.
Human Sirpa V8 on Tris-Bis PAGE under reduced condition. The purity is greater than 95%.

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