Fig. 1.

Branched-chain fatty acid metabolism in (A) “Syntrophomonas wolfei subsp. methylbutyratica” strain 4J5 and (B) Syntrophothermus lipocalidus strain TGB-C1. Each reaction is labeled with the protein name (italicized) of the gene encoding the function and locus tag(s). Figures in brackets indicate the number of multiple gene copies. Four (Swmb_00646–00651, Swmb1699–1704, Swmb_1496–1500, and Swmb_2505–02510) and three (Slip_0499–0503, Slip_0577–0581, and Slip_1236–1241) β-oxidation gene clusters were identified in strains 4J5 and TGB-C1, respectively (shown in bold face).