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Information on EC 3.13.2.1 - adenosylhomocysteinase

for references in articles please use BRENDA:EC3.13.2.1

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IUBMB Comments

The enzyme contains one tightly bound NAD+ per subunit. This appears to bring about a transient oxidation at C-3′ of the 5′-deoxyadenosine residue, thus labilizing the thioether bond (for mechanism, click here), cf. EC 5.5.1.4, inositol-3-phosphate synthase.

The expected taxonomic range for this enzyme is: Eukaryota, Bacteria, Archaea

Synonyms
s-adenosylhomocysteine hydrolase, adohcy hydrolase, s-adenosyl-l-homocysteine hydrolase, sah hydrolase, adohcyase, sahase, adenosylhomocysteinase, s-adenosylhomocysteinase, pfsahh, s-adenosyl homocysteine hydrolase, more

REACTION
REACTION DIAGRAM
COMMENTARY hide
ORGANISM
UNIPROT
LITERATURE
S-adenosyl-L-homocysteine + H2O = L-homocysteine + adenosine
show the reaction diagram
PATHWAY SOURCE
PATHWAYS
MetaCyc
L-methionine degradation I (to L-homocysteine), S-adenosyl-L-methionine salvage II