Human SIRP alpha/CD172a Protein (SRP-HM272)
  • Express System: HEK293
  • Product Tag: C-hFc
  • Purity: > 95% as determined by Bis-Tris PAGE;> 95% as determined by SEC-HPLC
  • Activity: Immobilized Human CD47, His Tag at 2ug/ml (100ul/well) on the plate. Dose response curve for Human SIRP alpha, hFc Tag with the EC50 of 82.1ng/ml determined by ELISA (QC Test). The affinity constant of 18.9nM as determined in SPR assay (Biacore T200). See testing image for detail.
  • Amino Acid Range: Glu31-Arg370
Catalog #SRP-HM272
/
Size

Order now, ships by:

Product Description
 Recombinant Human SIRP alpha/CD172a Protein is expressed from HEK293 with hFc tag at the C-Terminus.It contains Glu31-Arg370.
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/CD172a
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
Biotinylated
 no
Amino Acid Range
 Glu31-Arg370
Molecular Weight
 The protein has a predicted MW of 64.1 kDa. Due to glycosylation, the protein migrates to 78-90 kDa based on Bis-Tris PAGE result.
Activity
 Immobilized Human CD47, His Tag at 2ug/ml (100ul/well) on the plate. Dose response curve for Human SIRP alpha, hFc Tag with the EC50 of 82.1ng/ml determined by ELISA (QC Test). The affinity constant of 18.9nM as determined in SPR assay (Biacore T200). See testing image for detail.
Product Tag
 C-hFc
Express System
 HEK293
Purity
 > 95% as determined by Bis-Tris PAGE;> 95% as determined by SEC-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.
Human CD47, His Tag captured on CM5 Chip via Anti-His Antibody can bind Human SIRP alpha, hFc Tag with an affinity constant of 18.9nM as determined in SPR assay (Biacore T200).
Immobilized Human CD47, His Tag at 2ug/ml (100ul/well) on the plate. Dose response curve for Human SIRP alpha, hFc Tag with the EC50 of 82.1ng/ml determined by ELISA (QC Test).
Immobilized Human SIRP alpha, hFc Tag at 0.5ug/ml (100ul/Well) on the plate. Dose response curve for Biotinylated Anti-SIRP alpha Antibody, hFc Tag with the EC50 of 26.9ng/ml determined by ELISA.
Human SIRP alpha on Bis-Tris PAGE under reduced condition. The purity is greater than 95%.
The purity of SIRP alpha is greater than 95% as determined by SEC-HPLC.

Have more questions?

Check out our Frequently Asked Questions page for more details about product specifications, ordering, and shipments.

Contact Us

support@kactusbio.us

Recently viewed