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Mouse SIRP alpha Recombinant


accession:  P97797
   Size A     20ug   $ 160
   Size B      100ug  $480
   Size C      500ug  $ 1950
Domain  : 
Gene  :  SIRPA
Catalog no. :  RKP97797



Optimized DNA sequence encoding Mouse Signal regulatory protein alpha - SIRP alpha  (SHPS1)  (THR32 - Asn 373) extracellular domain including a C-terminal His tag was expressed in HEK293 cells.

Molecular weight:

Recombinant Mouse SIRP alpha  (SHPS1) is a protein consisting of 350 amino acid residue subunits,due to glycosylation migrates as an approximately as 50kDa band protein on reduced SDS-PAGE.

>95%, as determined by SDS-PAGE and HPLC
Biological Activity:
The activity was determined by the ability of immobilized mouse SIRPA to bind recombinant human CD47. The ED50 was calculated to be < 70ng/ml
Endotoxin content was assayed using a LAL gel clot method.
Endotoxin level was found to be less than 0.1 ng/¬Ķg(1EU/¬Ķg).

Recombinant¬†Mouse¬†SIRP alpha (SHPS1) is lyophilized ¬†from 0.2 őľm filtered PBS solution, ¬†pH7.2 , ¬†5% Trehalose.

A quick spin of the vial followed by reconstitution in distilled water to a concentration not less than 0.1 mg/mL. This solution can then be diluted into other buffers.

Recombinant¬†Mouse¬†SIRP alpha (SIRPA) can be stored in working aliquots at 2¬į - 8¬į C for one month, or at -20¬įC to¬†-70¬įC¬†for twelve months.

Avoid repeated freeze/thaw cycles.

This product is for research purposes only.It may not be used for therapeutics or diagnostic purposes.


Signal regulatory protein alpha

Sirpa encodes an Ig superfamily receptor expressed on macrophages, dendritic cells, and neurons. SIRPα and its ubiquitously expressed ligand CD47 interact through their respective Ig variable region (IgV)Ėlike domains . Upon binding CD47, SIRPα immunoreceptor tyrosine- based inhibition motifs mediate inhibitory signals via recruitment of the src homology-2 domain containing protein tyrosine phosphatases SHP-1 and SHP-2 leading to decreased phagocytosis by macrophages, inhibition of neutrophil migration, and attenuated production of the inflammatory cytokine TNF

Related Publications:
polymorphisms in the human inhibitory signal-regulatory protein α do not affect binding to its ligand cd47
J. Biol. Chem., Feb 2014; 10.1074/jbc.M114.550558.
thrombospondin-1 activation of signal-regulatory protein-α stimulates reactive oxygen species production and promotes renal ischemia reperfusion injury
J. Am. Soc. Nephrol., Feb 2014; 10.1681/ASN.2013040433.
signal regulatory protein-α protects against cardiac hypertrophy via the disruption of toll-like receptor 4 signaling
Hypertension, Jan 2014; 63: 96 - 104.
lack of cd47 impairs bone cell differentiation and results in an osteopenic phenotype in vivo due to impaired signal regulatory protein α (sirpα) signaling
J. Biol. Chem., Oct 2013; 288: 29333 - 29344.
sterile-α- and armadillo motif-containing protein inhibits the trif-dependent downregulation of signal regulatory protein α to interfere with intracellular bacterial elimination in burkholderia pseudomallei-infected mouse macrophages
Infect. Immun., Sep 2013; 81: 3463 - 3471.

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Purified Polyclonal
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product_icon_8.jpg Mouse SIRP alpha Recombinant
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