Methyltransferase/ribosomally synthesized cyclic peptide omphalotin A precursor ophMA

UniProtKB accession:  A0A2R2JFI5

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UniProtKB description:  Fusion protein of the methyltransferase ophM and the omphalotin core peptide; part of the gene cluster that mediates the biosynthesis of omphalotin A, a highly methylated cyclic dodecapeptide with nematodicidal activity (PubMed:28715095, PubMed:30151425, PubMed:32491837, PubMed:33574430). Omphalotin A derives from the C-terminus of the ophMA protein, and it is the ophMA protein that methylates its own C-terminus using S-adenosyl methionine (SAM) (PubMed:28715095, PubMed:30151425, PubMed:32491837, PubMed:33574430). The C-terminus is subsequently cleaved off and macrocyclized by the prolyloligopeptidase ophP to give the final product (PubMed:28715095, PubMed:30151425, PubMed:32491837).