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Acetylaranotin biosynthesis cluster protein L This entry includes acetylaranotin biosynthesis cluster protein L (AtaL) from Aspergillus terreus, which is a non-ribosomal peptide synthetase. It is required for the biosynthesis of the toxin acetylaranotin, which is a disulfide bridged cyclic dipeptide. There are a number of steps in the biosyntheis of this epipolythiodioxopiperazine toxin from two phenylananines, but the specific function of AtaL has yet to be determined. homologs are also known from bacteria.
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