S-adénosylhomocystéine

S-adénosylhomocystéine
S-adénosyl-L-homocystéine
S-Adenosyl-L-homocysteine.svg
Structure de la S-adénosyl-L-homocystéine
Général
No CAS 979-92-0
No EINECS 213-560-8
PubChem 439155
ChEBI 16680
SMILES
InChI
Propriétés chimiques
Formule brute C14H20N6O5S  [Isomères]
Masse molaire[1] 384,411 ± 0,02 g·mol-1
C 43,74 %, H 5,24 %, N 21,86 %, O 20,81 %, S 8,34 %,
Unités du SI & CNTP, sauf indication contraire.

La S-adénosyl-L-homocystéine, généralement abrégée en SAH, est un dérivé d'acide aminé issu de la déméthylation de la S-adénosyl-L-méthionine (SAM). C'est une coenzyme intervenant dans de nombreuses voies métaboliques de la plupart des êtres vivants. C'est notamment un intermédiaire de synthèse de la cystéine et de l'adénosine.

Notes et références

  1. Masse molaire calculée d’après Atomic weights of the elements 2007 sur www.chem.qmul.ac.uk.

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