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Enzyme Types - Cell Physiology
n/a
17
Biology
Undergraduate 4
10/12/2009

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Term
Carboxylase
Definition
Adds CO2 or HCO3- to form a carboxyl
Term
Aldolase
Definition
Cleaves C-C to make an aldehyde
Term
Decarboxylase
Definition
Cleaves a carboxyl group, liberating CO2
Term
Dehydrogenase
Definition
Removes H atoms
Term
Esterase
Definition
Hydrolyzes ester linkages to form an acid and an alcohol
Term
Hydrolase
Definition
Adds water to break a bond
Term
Isomerase
Definition
Converts isomers (D and L, structural, aldose to ketose, cis and trans, etc.)
Term
Kinase
Definition
Transfers a phosphate group to its substrate. Often uses ATP as the phosphate donator.
Term
Ligase
Definition
Joins two molecules by using the energy released from hydrolysis of a pyrophosphate bond of a high-energy phosphate compound. (Synthetase)
Term
Mutase
Definition
Shifts the position of a group within a single molecule
Term
Oxidase
Definition
Adds O2 to hydrogen atoms removed from the substrate to generate water or hydrogen peroxide. Substrate is oxidized.
Term
Peptidase
Definition
Hydrolyzes peptide bonds to yield free amino acids and peptides.
Term
Phosphatase
Definition
Hydrolyzes substrates to liberate inorganic phosphate.
Term
Phosphorylase
Definition
Adds inorganic phosphate to split a bond
Term
Reductase
Definition
Reduces substrate; adds H atoms
Term
Transaminase
Definition
Transfers amino groups from an amino acid to a keto acid -> makes new keto acid and new amino acid.
Term
Transferase
Definition
Transfers groups from one molecule to another molecule. (Hydrogens not included)
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