Maximum number of substrate molecules converted to product per enzyme active site per unit time at saturating [S]: k_cat = Vmax / [E]_total. Units: s⁻¹. Carbonic anhydrase ≈ 10⁶ s⁻¹; lysozyme ≈ 0.5 s⁻¹.
Maximum number of substrate molecules converted to product per enzyme active site per unit time at saturating [S]: k_cat = Vmax / [E]_total. Units: s⁻¹. Carbonic anhydrase ≈ 10⁶ s⁻¹; lysozyme ≈ 0.5 s⁻¹.