Enzyme Mechanisms

3. Term for the arrangement of three amino acids common in enzyme reactions involving an active site nucleophile
4. Amino acid side chain commonly participating in acid-base catalysis
6. Term used to describe the temporary covalent complex formed during reactions involving several esterase and protease enzymes
7. Amino acid commonly participating in catalysis as the active site nucleophile containing and SH group
9. Amino acid commonly participating in catalysis as the active site nucleophile containing and OH group
10. The bond hydrolysed by protease enzymes
11. Enzyme type involving transfer of hydrogen atoms or hydride ions
12. Classification of enzymes using water to break a bond in a substrate
13. Reduced form of the coenzyme NAD+

1. Region stabilising negatively charged tetrahedral intermediates during a reaction, common in esterase and protease enzymes
2. Species acting as a Lewis base, donating a pair of electrons to form a new bond
5. Termed used to describe organic molecule supporting enzyme catalysed reactions
6. Reaction mechanism involving proton transfer usually between a functional group of a substrate and an amino acid side chain
7. A protease enzyme released from the pancreas during digestion
8. Hydrogen ion with two electrons