the amino acid sequence of a coagulant enzyme , named flavoxobin , isolated from the venom of trimeresurus flavoviridis ( the habu snake ) was determined by sequencing the s-pyridylethylated derivative of the protein and its peptides generated by chemical ( cyanogen bromide and hydroxylamine ) and enzymatic ( clostripain , staphylococcus aureus v8 protease , achromobacter protease i , and elastase ) cleavages .
C0014442
enzyme
C0030946
protease