Ascorbic acid conversion to erythroascorbic acid, mediated by ubiquitin.


We recently identified a microbial conversion of L-ascorbic acid (AsA) to L-erythroascorbic acid (eAsA), a five-carbon analog of AsA. In this paper, we show that ubiquitin plays a crucial role in this process. Based on an assay that determined AsA decomposition, we purified proteins that had N-terminal amino acid sequences identical to that of yeast… (More)
DOI: 10.1016/j.bbrc.2009.04.101


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