NAD+ has a pivotal role in regulating many biological processes. A recent study (Palzer et al., Cell Rep. 2018, 25;1359-1370) demonstrated that alpha-amino-beta-carboxy-muconate-semialdehyde decarboxylase (ACMSD) is a key regulator of NAD+ metabolism and overexpression of human ACMSD leads to niacin dependency for NAD+ biosynthesis in mice, providing important insights into human diseases associated with niacin/NAD+ deficiency.
Keywords: ACMSD; NAD(+); metabolism; niacin; tryptophan.
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