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. 2013 May;54(5):1439–1447. doi: 10.1194/jlr.M036186

TABLE 5.

Reaction kinetics for the 15-sLOX catalyzed double dioxygenation of a range of polyunsaturated fatty acid substrates

Parameter ARA EPA DPAn-6 DHA
Vmax (μM/min) 4.2 7.0 34.9 26.6
Km (μM) 18.8 53.3 62.4 49.5
Vmax/Km (min−1) 0.22 0.13 0.56 0.54
kcat (min−1) 0.8 1.3 6.5 4.9
kcat/Km (μM−1/min−1) 0.04 0.02 0.10 0.10