Phosphosulfolactate synthase
Definition:
EC Tree > 4 Lyases > 4.4 Carbon-sulfur lyases > 4.4.1 Carbon-sulfur lyases (only sub-subclass identified to date) > 4.4.1.19 phosphosulfolactate synthase
Phosphosulfolactate synthase requires Mg2+. The archaeon Methanococcus jannaschii enzyme catalyzes the Michael addition of sulfite to phosphoenolpyruvate; it specifically requires phosphoenolpyruvate and its broad alkaline pH optimum suggests it uses sulfite rather than hydrogensulfite. It converts (2R)-2-O-phospho-3-sulfolactate into phosphoenolpyruvate and sulfite. It is found in Eukaryota, Bacteria and Archaea. Structurally it is a sulfolactate synthase.
Phosphosulfolactate synthase requires Mg2+. The archaeon Methanococcus jannaschii enzyme catalyzes the Michael addition of sulfite to phosphoenolpyruvate; it specifically requires phosphoenolpyruvate and its broad alkaline pH optimum suggests it uses sulfite rather than hydrogensulfite. It converts (2R)-2-O-phospho-3-sulfolactate into phosphoenolpyruvate and sulfite. It is found in Eukaryota, Bacteria and Archaea. Structurally it is a sulfolactate synthase.
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