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. 2005 Jul;71(7):3420–3426. doi: 10.1128/AEM.71.7.3420-3426.2005

TABLE 3.

Kinetic parameters for hydrolysis of AAPF with P. marquandii and D. microsporus keratinases and with proteinase K

Enzyme Km (mM) Vmax (107 mmol/s) kcat (s−1) kcat/Km (mM−1s−1)
Keratinase of P. marquandii 0.17 ± 0.02 7.3 ± 0.1 41.0 241
Keratinase of D. microsporus 1.03 ± 0.17 11.7 ± 0.4 8.8 9
Proteinase K 1.49 ± 0.30 8.2 ± 0.4 142.0 95