Fig. 1From: Roles of the crotonyl-CoA carboxylase/reductase homologues in acetate assimilation and biosynthesis of immunosuppressant FK506 in Streptomyces tsukubaensis Schematic presentation of the EMC pathway providing ethylmalonyl-CoA extender unit (a) and of the proposed ALL pathway (b) for biosynthesis of allylmalonyl-CoA extender unit, part of the FK506 biosynthetic machinery. The step of potential cross-activity of ccr homologues from EMC and ALL pathways is marked by a two-way arrow Back to article page