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. 2021 Oct 1;12:754601. doi: 10.3389/fpls.2021.754601

FIGURE 6.

FIGURE 6

Bibliometric analysis of LAC enzymatic parameters. (A) Temperature optimum of LACs activity from fungi, prokaryota and plants. (B) Isoelectric points of LACs from the three kingdoms. Note that most of the isoelectric point data represent calculated values rather than experimental ones. (C) Km values of LACs from the three kingdoms for the classical non-phenolic substrate 2,2′-azino-bis(3-ethylbenzothiazoline-6-sulphonic acid) (ABTS) and two common phenolic substrates (DMP, 2,6-dimethoxyphenol; SGZ, syringaldazine). (D) Optimal pH for the oxidation of ABTS, DMP and SGZ. (E) Schematic representation of LAC mediated oxidation of ABTS, DMP and SGZ.