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93622 Sigma

Trypsin inhibitor from corn kernels

solution in 20 mM TRIS HCl, 30 mM NaCl, pH 8.2, >25000 U/mL

Synonym: Hageman factor inhibitor, PCI, Popcorn inhibitor



Related Categories Biochemicals and Reagents, Enzyme Inhibitors, Enzyme Inhibitors by Type, Enzymes, Inhibitors, and Substrates, Proteins More...
quality   solution in 20 mM TRIS HCl, 30 mM NaCl, pH 8.2
mol wt   Mr ~12028
concentration   >25000 U/mL
shipped in   dry ice
storage temp.   −70°C


Unit Definition

1 U corresponds to the amount of inhibitor which reduces the trypsin activity by 1 BAEE-U. (1 BAEE-U is the amount of enzyme which increases the absorbance at 253 nm by 0.001 per minute at pH 7.6 and 25 °C; BAEE, Cat. No. 12880, as substrate).

Biochem/physiol Actions

A potent inhibitor of Hageman Factor (clotting factor XII); it also inhibits trypsin, but not kallikrein. Inhibited growth of all nine plant pathogenic fungi studied; may be involved in host resistance to fungal pathogens.

Price and Availability

Laboratory Gloves

Biomedical Applications
Safety & Documentation

Safety Information

NONH for all modes of transport
WGK Germany 


Certificate of Analysis

Protocols & Articles


HPLC Analysis of Proteins on Discovery® BIO PolyMA-WAX (Analyte Set #1)

From our library of Articles, Sigma-Aldrich presents HPLC Analysis of Proteins on Discovery® BIO PolyMA-WAX (Analyte Set #1)
Keywords: Chromatography, High performance liquid chromatography, Separation

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