A Missing Link to Vitamin B12 Metabolism.
Nearly 3% of the human population carries bi-allelic loss-of-function variants in the gene encoding CLYBL. While largely healthy, these individuals exhibit reduced circulating vitamin B12 levels. In this issue of Cell, Shen and colleagues uncover the metabolic role of CLYBL, linking its function to B12 metabolism and the immunomodulatory metabolite, itaconate.
Reid, MA; Paik, J; Locasale, JW
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