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Adenylosuccinate lyase C-terminus Adenylosuccinate lyase catalyses two steps in the synthesis of purine nucleotides: the conversion of succinylaminoimidazole-carboxamide ribotide into aminoimidazole-carboxamide ribotide (the fifth step of de novo IMP biosynthesis); the formation of adenosine monophosphate (AMP) from adenylosuccinate (the final step in the synthesis of AMP from IMP). This entry represents the C-terminal, seven alpha-helical, domain of adenylosuccinate lyase.
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