Precursor peptide that leads to mycofactocin (MFT) after extensive post-translational modifications by enzymes encoded by adjacent genes. Mycofactocin acts as a redox cofactor of nicotinamide-dependent oxidoreductases encoded in the same locus. The post-translational modifications that lead to mycofactocin involve oxidative decarboxylation of the C-terminal tyrosine residue catalyzed by MftC, introduction of a tyramine-valine cross-link, removal of the modified C-terminal dipeptide by MftE. The released dipeptide then undergoes oxidative deamination by MftD, glycosylation by MftF and methylation by an unknown enzyme. Mycofactocin is classified as a ribosomally synthesized and post-translationally modified peptide (RiPP). Belongs to the mycofactocin precursor peptide family. Extended N-terminus.