" /> S-Adenosylhomocysteine - CISMeF





Preferred Label : S-Adenosylhomocysteine;

NCIt synonyms : AdoHCy; S-Adenosyl-L-homocysteine; (S)-5'-(S)-(3-Amino-3-carboxypropyl)-5'-thioadenosine; SAH;

NCIt definition : An amino acid derivative and an intermediate in the synthesis of cysteine and adenosine. S-adenosylhomocysteine (SAH) is formed upon S-adenosylmethionine (SAM)-dependent methylation (homocysteine methionine cycle) of biological molecules, such as DNA, RNA, and proteins. It is then hydrolyzed by S-adenosylhomocysteine hydrolase to form adenosine and homocysteine. As SAH modulates methylation dependent reactions, SAH levels and the ratio of SAH:SAM may be used to assess methylation status of macrocolecules.;

UNII : 8K31Q2S66S;

CAS number : 979-92-0;

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10/05/2025


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