Enzyme Classification Flashcards Preview

MCAT biochemistry > Enzyme Classification > Flashcards

Flashcards in Enzyme Classification Deck (10):
1

hydrolase

hydrolyzes chemical bonds
catalyze hydrolytic cleavage
ex: ATPase, protease

2

isomerase

rearranges bonds within a molecule to form an isomer
catalyzes intramolecular rearrangement

3

ligase

forms a chemical bond
catalyze reaction in which two molecules are joined
ex: DNA ligase

4

lyase

breaks chemical bonds by means other than oxidation or hydrolysis
catalyze removal of a group from or the addition of a group to, a double bond or other cleavages involving electron arrangements
ex: pyruvate decarboxylase

5

kinase

transfers a phosphate group to a molecule from a high energy carrier such as ATP
catalyze reactions involving transfer of phosphoric group
ex: phosphofuctokinase

6

oxidoreducatse

runs redox reaction
catalyze oxidation-reduction reactions
ex: oxidases, reductases, dehydrogenases

7

polymerase

polymerization
ex: addition of nucleotide to the leading strand of DNA by DNA polymerase III

8

phophatase

removes a phosphate group from a molecule

9

phosphorylase

transfers a phosphate group to a molecule from inorganic phosphate
ex: glycogen phosphorylase

10

protease

hydrolyzes peptide bond
ex: trypsin, chymotrypsin, pepsin