3.4.21.B52: thermostable serine endopeptidase (Sulfolobus)

This is an abbreviated version, for detailed information about thermostable serine endopeptidase (Sulfolobus), go to the full flat file.


The best substrate is benzyloxycarbonyl-Tyr-4-nitroanilide. Cleaves Phe-Ser-Lys-Phe-Ile-/-Ser-Phe-Asp. No activity benzyloxycarbonyl-Ile-4-nitroanilide, aminoacyl-4-nitroanilides or benzyloxycarbonyl-amino acids, oxidized insulin chain A and B, bovine pancreas ribonuclease A, bovine serum albumin or ovalbumin. =


proteinase I


     3 Hydrolases
         3.4 Acting on peptide bonds (peptidases)
             3.4.21 Serine endopeptidases
                3.4.21.B52 thermostable serine endopeptidase (Sulfolobus)