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. 2008 Sep 26;190(23):7819–7829. doi: 10.1128/JB.02010-07

TABLE 2.

Kinetic parameters of porcine and Stenotrophomonas DPIVs

Substrate Porcine DPIV
Stenotrophomonas DPIV
N611Y mutant DPIV
Km (mM) kcat (s−1) kcat/Km (s−1 mM−1) Km (mM) kcat (s−1) kcat/Km (s−1 mM−1) Km (mM) kcat (s−1) kcat/Km (s−1 mM−1)
Gly-Pro-βNA 0.27 211 781 0.10 131 1,310 0.16 154 962
Gly-Hyp-βNA Not detected 0.47 13.8 29.4 0.92 8.3 9.0