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. 2012 Mar 13;24(3):915–928. doi: 10.1105/tpc.112.096461

Table 1.

Steady State Constants of the UDP-Glucosyltransferases Co-BX8, Zm-BX8, and Zm-BX9

Enzyme UDPG DIBOA DIMBOA
Km(μM) kcat(s−1) kcat/Km(mM−1 s−1) Km(μM) kcat(s−1) kcat/Km(mM−1 s−1) Km(μM) kcat(s−1) kcat/Km(mM−1 s−1)
Co-BX8 743 ± 77 8.5 ± 0.2 11.4 441 ± 47 9.5 ± 0.2 21.5 3168 ± 549 17.6 ± 1.6 5.6
Zm-BX8a 81 22.6 280 61 12.5 205 81 22.7 280.0
Zm-BX9a 96 22.6 117 1300 12.5 6 71 11.6 163.0
a

The data for Zm-BX8 and Zm-BX9 are from von Rad et al. (2001).