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Pronunciation: de-sul'fi-nas

Definition: Term sometimes applied to the enzyme (aspartate-4-decarboxylase) removing sulfite: 1) from cysteinesulfinate, an intermediate in cysteine degradation, yielding alanine; or 2) from sulfinylpyruvate, previously postulated to be formed by deamination of cysteinesulfinate, yielding pyruvate. Degradation of sulfinylpyruvate is now considered to be spontaneous, not requiring an enzyme.

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© Copyright 2018 Wolters Kluwer. All Rights Reserved. Review date: Sep 19, 2016.