Potential NRPS partners for the MXAN_3118 orphan MLP. (A) Schematic of the MYSTI_03590 to MYSTI_03598 NRPS/PKS hybrid megasynthase from M. stipitatus DSM 14675. (B) Schematic of the MXAN_3779 and MXAN_3634 to MXAN_3636 NRPS/PKS hybrid megasynthases from M. xanthus DK1622. Domain abbreviations: AL, acyl-CoA ligase; T, thiolation; C, condensation; ox, oxidation; KS, ketosynthase; AT, acyltransferase; E, epimerase; Te, thioesterase.