L-3-cyanoalanine synthase

The enzyme <small>L</small>-3-cyanoalanine synthase (EC 4.4.1.9) catalyzes the chemical reaction

This enzyme belongs to the family of lyases, specifically the class of carbon-sulfur lyases. The systematic name of this enzyme class is <small>L</small>-cysteine hydrogen-sulfide-lyase (adding hydrogen cyanide <small>L</small>-3-cyanoalanine-forming). Other names in common use include β-cyanoalanine synthase, β-cyanoalanine synthetase, β-cyano-<small>L</small>-alanine synthase, and <small>L</small>-cysteine hydrogen-sulfide-lyase (adding HCN). This enzyme participates in cyanoamino acid metabolism.

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