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Put these steps in the mechanism of chymotrypsin catalysis in order from first t

ID: 630433 • Letter: P

Question

Put these steps in the mechanism of chymotrypsin catalysis in order from first to last. Note there are 8 steps. -His 57 catalyzes removal of H from Ser 195 hydroxyl. -Ser 195's nucleophilic O attacks carbonyl C of substrate. -His 57 donates H to N of sissile peptide bond, tetrahedral intermediate decomposes. -C- terminal portion of oribinal substrate with its new amino acid terminus diffuses away. -Water donates H to His 57. -Resulting OH attacks carbonyl of remaining substrate. -His 57 donates H to Ser 195 O, leading to collapse of tetrahedral intermediate. -N-terminal portion of original substrate with its new carboxy terminus diffuses away.

Explanation / Answer

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