Diet Post-translationally Modifies The Gut Microbial Proteome To Modulate Renal Function
2020
We identify a novel mechanism linking diet, gut microbial metabolism, and renal function. We found that a sulfur amino acid-based dietary intervention post-translationally modifies a microbial enzyme, blunting its uremic toxin-producing activity and alleviating chronic kidney disease (CKD) in a preclinical model. We also define a heretofore unknown role for the post-translational modification S-sulfhydration within the gut microbiome. This study provides a framework for understanding how diet can tune microbiota function via protein post-translational modification without altering microbial community composition to support healthy host physiology beyond the gut and specifically how a dietary modification can inhibit tryptophanase activity to ameliorate CKD progression.
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