7 major types of enzyme Flashcards
1
Q
Oxidoreductases
A
Oxidation/reduction reactions
CH3CH2OH → CH3CHO + “2H” alcohol dehydrogenase
2
Q
Transferases
A
Transfer of functional groups
Glucose + ATP → Glucose-6-phosphate + ADP
hexokinase
3
Q
Hydrolases
A
Hydrolysis reactions (bond breaking) R1-lysine-R2-R3 → R1-lysine + R2-R3 trypsin
4
Q
Lyases
A
Addition of double bonds
O-
|+ O=C=O + H2O → HO-C=O + H
carbonic anhydrase
5
Q
Isomerases
A
Isomerisation reactions
L-alanine → D-alanine
L-alanine isomerase
6
Q
Ligases
A
Formation of bonds with ATP cleavage
Glutamic acid + NH3 + ATP → Glutamine + ADP + Pi glutamine synthase
7
Q
Translocases
A
Catalyse the movement of ions across membranes
ATP + H2O + 4 H+[side 1] → ADP + phosphate + 4 H+[side 2] P-type H+-exporting transporter