Biochemistry: The Molecular Basis of Life
Biochemistry: The Molecular Basis of Life
6th Edition
ISBN: 9780190209896
Author: Trudy McKee, James R. McKee
Publisher: Oxford University Press
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Chapter 6, Problem 76TQ
Summary Introduction

To review:

The mechanism for the serine triad hydrolysis of glycylglycine.

Introduction:

The dipeptide unit of glycine is glycylglycine. It is the simplest peptide with the chemical formula C4H8N2O3.

Biochemistry: The Molecular Basis of Life, Chapter 6, Problem 76TQ

Figure: Structure of glycylglycine

Serine proteases are a group ofenzymes that contain serine as its nucleophile. The serine nucleophile attacks the peptide bond and hydrolyzes it. Catalytic triad has three amino acids, which are found in the active site of this enzyme. The serine catalytic triad is made of serine (Ser)195, histidine (His)57, and aspartate (Asp) 102.

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Biochemistry: The Molecular Basis of Life

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