mma:MM_1291 K00104 glycolate dehydrogenase FAD-linked subunit [EC:1.1.99.14] | (GenBank) (S)-2-hydroxy-acid dehydrogenase mma:MM_1290 K18210 fumarate reductase (CoM/CoB) subunit B [EC:1.3.4.1] | (GenBank) Fe-S oxidoreductase