1.6.3.4 - 721336, 721856, 723206 1.6.3.4 cloned into the T7 promoter-based plasmid pET28a to give pET28a-SpNox and then heterologously overexpressed in Escherichia coli BL21 (DE3) 721809 1.6.3.4 expressed in bdhA gene-disrupted Bacillus subtilis 743220 1.6.3.4 expressed in Escherichia coli BL21(DE3) cells 741740, 742128, 744974 1.6.3.4 expressed in pyruvate decarboxylase-deficient Saccharomyces cerevisiae strain SOS2 742099 1.6.3.4 expressed in Saccharomyces cerevisiae JHY605 cells 743813 1.6.3.4 expressed in Saccharomyces cerevisiae strain BY4741 742579 1.6.3.4 expressed in Saccharomyces cerevisiae strain BY4741 and Clostridium acetobutylicum strain 428 742157 1.6.3.4 expressed in Saccharomyces cerevisiae strain SR8 743034 1.6.3.4 expression in Escherichia coli 764864