KEY TERMS

enzyme

substrate

cofactor

apoenzyme

holoenzyme

coenzyme

prosthetic group

free energy

transition state

free energy of activation

active site

induced fit

KM (the Michaelis constant)

Vmax (maximal rate)

Michaelis–Menten equation

Lineweaver–Burk equation (double-reciprocal plot)

turnover number

kcat/KM ratio (the specificity constant)

sequential reaction

double-displacement (ping-pong) reaction

allosteric enzyme

competitive inhibition

uncompetitive inhibition

noncompetitive inhibition

group-specific reagent

affinity label (reactive substrate analog)

mechanism-based (suicide) inhibition

transition-state analog

catalytic antibody (abzyme)

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