Enzyme Classification Exam 2 Flashcards Preview

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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