adenylosuccinate lyase

adenylosuccinate lyase
Adenylylsuccinate lyase; an enzyme catalyzing the nonhydrolytic cleavage of adenylosuccinic acid producing AMP and fumarate and also of 4-(N-succinocarboxamido)-5-aminoimidazole nucleotide to yield fumarate and aminoimidazole carboxamide ribosyl-5-phosphate. Both are steps in purine nucleotide biosynthesis. SYN: adenylosuccinase, adenylylosuccinate lyase.

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ad·e·nylo·suc·ci·nate ly·ase (ad″ə-nəl-o-sukґsĭ-nāt liґās) [EC 4.3.2.2] an enzyme of the lyase class that catalyzes the cleavage of adenylosuccinate to form fumarate and AMP. The enzyme occurs in the liver, where it catalyzes several steps in purine nucleotide biosynthesis; in muscle it is involved in the utilization of energy. Called also adenylosuccinase.

Medical dictionary. 2011.

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