Main Reaction: cystathionine >> alpha-ketobutyrate + cysteine + NH3

Reference: PubMed ID: 10613873
Authors: Kitabatake M, So MW, Tumbula DL, Söll D
Title: Cysteine biosynthesis pathway in the archaeon Methanosarcina barkeri encoded by acquired bacterial genes?
Published: 2000 Jan

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