BIOCHEMISTRY | PROTEIN STRUCTURE AND FUNCTION | ENZYME | NOTED BY FAKHRY (IG @SFAKHRYM)
v Basic Principle
o Among the many biologic reactions that are energetically possible, enzymes selectively channel reactants (called substrates) into
useful pathways
v Nomenclature
o Recommended name
• Most commonly names have the suffix "-ase" attached to the substrate of the reaction (e.g., glycosidase and urease); or to
a description of the action performed (e.g., lactate dehydrogenase and adenylyl cyclase)
• Some enzymes retain their original trivial names, which give no hint of the associated enzymatic reaction (e.g., trypsin and
pepsin)
o Systematic name
• In this system, enzymes are divided into six major classes, each with numerous subgroups
1
, BIOCHEMISTRY | PROTEIN STRUCTURE AND FUNCTION | ENZYME | NOTED BY FAKHRY (IG @SFAKHRYM)
2
v Basic Principle
o Among the many biologic reactions that are energetically possible, enzymes selectively channel reactants (called substrates) into
useful pathways
v Nomenclature
o Recommended name
• Most commonly names have the suffix "-ase" attached to the substrate of the reaction (e.g., glycosidase and urease); or to
a description of the action performed (e.g., lactate dehydrogenase and adenylyl cyclase)
• Some enzymes retain their original trivial names, which give no hint of the associated enzymatic reaction (e.g., trypsin and
pepsin)
o Systematic name
• In this system, enzymes are divided into six major classes, each with numerous subgroups
1
, BIOCHEMISTRY | PROTEIN STRUCTURE AND FUNCTION | ENZYME | NOTED BY FAKHRY (IG @SFAKHRYM)
2
