Английская Википедия:Cysteine-S-conjugate beta-lyase

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Шаблон:Infobox enzyme The enzyme cysteine-S-conjugate β-lyase (EC 4.4.1.13) catalyzes the chemical reaction

an L-cysteine-S-conjugate + H2O = a thiol + NH3 + pyruvate (overall reaction)
(1a) an L-cysteine-S-conjugate = a thiol + 2-aminoprop-2-enoate
(1b) 2-aminoprop-2-enoate = 2-iminopropanoate (spontaneous)
(1c) 2-iminopropanoate + H2O = pyruvate + NH3 (spontaneous)

This enzyme belongs to the family of lyases, specifically the class of carbon-sulfur lyases. The systematic name of this enzyme class is L-cysteine-S-conjugate thiol-lyase (deaminating; pyruvate-forming). Other names in common use include cysteine conjugate β-lyase, glutamine transaminase K/cysteine conjugate β-lyase, and L-cysteine-S-conjugate thiol-lyase (deaminating). It employs one cofactor, pyridoxal phosphate.

Structural studies

As of late 2007, 3 structures have been solved for this class of enzymes, with PDB accession codes Шаблон:PDB link, Шаблон:PDB link, and Шаблон:PDB link.

References

Шаблон:Reflist

Шаблон:Carbon-sulfur lyases Шаблон:Enzymes Шаблон:Portal bar


Шаблон:Lyase-stub