Human Calprotectin (S100A8&S100A9) Protein (CAL-HE101)

  • Express System: E.coli
  • Product Tag: C-His
  • Purity: > 95% as determined by Tris-Bis PAGE
  • Amino Acid Range: Met1-Glu93(S100A8) & Thr2-Pro114(S100A9)

Catalog: CAL-HE101


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Product Description Recombinant Human Calprotectin (S100A8&S100A9) Protein is expressed from E.coli with His tag at the C-Terminus.It contains Met1-Glu93(S100A8)&Thr2-Pro114(S100A9).

Product Background

Calprotectin, a member of the widespread calcium-binding S-100 protein family, is present in remarkably high concentration in the cytoplasm of human neutrophils. The calprotectin molecule is composed of light (MRP8) and heavy (MRP14) subunits. Although not secreted from intact neutrophils, calprotectin release from dead and dying neutrophils creates high concentrations of the protein in inflammatory or abscess fluids and in the intestinal tract lumen of patients with inflammatory bowel disease.

Product Category

Recombinant Protein


Calprotectin (S100A8&S100A9)
Synonyms Protein S100-A8;Calgranulin-A;CFAG;MRP-8;S100 calcium-binding protein A8;Protein S100-A9;MRP-14;S100 calcium-binding protein A9



Amino Acid Range

Met1-Glu93(S100A8) & Thr2-Pro114(S100A9)
Molecular Weight The protein has a predicted MW of 11.7 kDa(S100A8)&13.2 kDa(S100A9) same as Tris-Bis PAGE result.

Product Tag


Express System

Purity > 95% as determined by Tris-Bis PAGE
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 2mM DTT, PBS (pH 7.2). 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 Calprotectin (S100A8&S100A9) on Tris-Bis PAGE under reduced condition. The purity is greater than 95%.

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