Substrate concentration at which v = ½·Vmax. Under rapid-equilibrium assumption K_M ≈ K_d of the ES complex; under steady-state K_M = (k_-1 + k_cat) / k_1. Apparent substrate affinity indicator.
Substrate concentration at which v = ½·Vmax. Under rapid-equilibrium assumption K_M ≈ K_d of the ES complex; under steady-state K_M = (k_-1 + k_cat) / k_1. Apparent substrate affinity indicator.