Human SIRP Beta/CD172b Protein (SRP-HM40B)

  • Express System: HEK293
  • Product Tag: C-His-Avi
  • Purity: > 95% as determined by Tris-Bis PAGE;> 95% as determined by HPLC
  • Exact Sequence: Glu30-Ala369

Catalog: SRP-HM40B


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Product Description Recombinant Human SIRP Beta/CD172b Protein is expressed from HEK293 with His tag and Avi tag at the C-Terminus.It contains Glu30-Ala369.

Product Background

SIRP beta 1 is a type I transmembrane protein belonging to the SIRP family within the Ig superfamily. Members of this family are characterized by an extracellular region containing a V-set Ig domain containing a J-like sequence and two C1-set Ig domains.SIRP beta 1 is immunoglobulin-like cell surface receptor involved in the negative regulation of receptor tyrosine kinase-coupled signaling processes. Participates also in the recruitment of tyrosine kinase SYK. Triggers activation of myeloid cells when associated with TYROBP.

Product Category

Recombinant Protein


SIRP Beta/CD172b
Synonyms SIRP-beta-1 isoform 3; SIRPB1; CD172b; DKFZp686A05192; FLJ26614; 9930027N05Rik; SIRP-beta; Sirpb; Sirpb1; Sirpb1a

Gene/Protein ID




Exact Sequence

Molecular Weight The protein has a predicted MW of 40 kDa. Due to glycosylation, the protein migrates to 52-60 kDa based on Tris-Bis PAGE result.

Product Tag


Express System

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.
The purity of Human SIRP Beta is greater than 95% as determined by SEC-HPLC.
Human SIRP Beta on Tris-Bis PAGE under reduced conditions. The purity is greater than 95%.

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