ead:OV14_b0059 K21405 sigma-54 dependent transcriptional regulator, acetoin dehydrogenase operon transcriptional activator AcoR | (GenBank) sigma-54 dependent DNA-binding response regulator ead:OV14_b0061 K00004 (R,R)-butanediol dehydrogenase / meso-butanediol dehydrogenase / diacetyl reductase [EC:1.1.1.4 1.1.1.- 1.1.1.303] | (GenBank) tdh; L-threonine 3-dehydrogenase