Epidithiol Formation by an Unprecedented Twin Carbon–Sulfur Lyase in the Gliotoxin Pathway

Abstract

Two in one go: The elucidation of a key step in the biosynthesis of gliotoxin, the infamous virulence factor of the human pathogen Aspergillus fumigatus, provides insight into the formation of an epidithiol. Isolation of a bis(cysteine) S-conjugate from a ΔgliI mutant and in vitro studies show that GliI concomitantly cleaves two CS bonds, along with the formation of ammonia and pyruvate (see scheme). Detailed facts of importance to specialist readers are published as ”Supporting Information”. Such documents are peer-reviewed, but not copy-edited or typeset. They are made available as submitted by the authors. Please note: The publisher is not responsible for the content or functionality of any supporting information supplied by the authors. Any queries (other than missing content) should be directed to the corresponding author for the article.