Flashcards in Enzyme Classification Exam 2 Deck (6)
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1
Q
oxidoreductases (1)
A
A(ox) + B (red) A(red) + B(ox)
involving oxidation-reduction pairs; usually have NAD/NADH, FAD/FADH2, 02/H20, or Q/QH2
2
Q
transferases (2)
A
(A-X) + B A + (B-X)
transfer of one group from one molecule to another
3
Q
hydrolases (3)
A
(A-B) + H20 A + B
addition of water to cleave a bond
e.g. trypsin, chymotrypsin
4
Q
lyases (4)
A
A (=) + B (A-B)
addition to a double bond or cleavage to yield a double bond
e.g carbonic anhydrase
CO2 + H20 HCO3(-) + H(+)
5
Q
isomerases (5)
A
A B
interconversion of 2 isomers; always reversible; not limited to stereoisomers
6
Q
ligases (6)
A
A + B + NTP (A-B) + NDP + Pi
A + B + NTP (A-B) + NMP + Ppi
Joining two molecules together with input of energy from a nucleoside triphosphate