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. 2016 Feb 21;291(15):7973–7989. doi: 10.1074/jbc.M115.712612

TABLE 1.

Specific activity and kinetic parameters of FadD32 orthologs

Protein MtFadD32 MmFadD32 MsFadD32 CgFadD32
Identity (%) 100 92 74 39
Specific activity (nmol·min−1·mg−1) 5.37 ± 0.16 3.85 ± 0.12 39.91 ± 0.73 0.46 ± 0.03

Kinetic parameters
    ATP
    Kmm) 248 ± 27 902 ± 114 112 ± 12
    Vmaxm·min−1) 0.14 ± 0.01 0.29 ± 0.01 0.17 ± 0.01
    kcat (min−1) 0.35 ± 0.01 0.72 ± 0.03 4.33 ± 0.01
    kcat/Km (min−1·μm−1) 0.0014 ± 0.0003 0.0008 ± 0.0003 0.0387 ± 0.0063

Lauric acid (C12)
    Kmm) 72.09 ± 5.75 103.2 ± 13.94 25.9 ± 1.6a
    Vmaxm.min−1) 0.82 ± 0.03 0.60 ± 0.39 0.45 ± 0.01
    kcat (min−1) 2.04 ± 0.07 1.51 ± 0.09 11.29 ± 0.22
    kcat/Km (min−1·μm−1) 0.028 ± 0.012 0.015 ± 0.007 0.438 ± 0.139

Myristic acid (C14)
    Kmm) 4.77 ± 0.65 5.76 ± 0.56 5.2 ± 0.5a
    Vmaxm.min−1) 0.39 ± 0.01 0.27 ± 0.01 0.17 ± 0.01
    kcat (min−1) 0.98 ± 0.03 0.69 ± 0.01 4.18 ± 0.09
    kcat/Km (min−1·μm−1) 0.206 ± 0.042 0.119 ± 0.025 0.800 ± 0.184

a Data are from Ref. 17.