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Information on EC 5.3.3.1 - steroid DELTA-isomerase

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EC Tree
     5 Isomerases
         5.3 Intramolecular oxidoreductases
             5.3.3 Transposing C=C bonds
                5.3.3.1 steroid DELTA-isomerase
IUBMB Comments
This activity is catalysed by several distinct enzymes (cf. EC 1.1.3.6, cholesterol oxidase and EC 1.1.1.145, 3-hydroxy-5-steroid dehydrogenase).
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Word Map
The expected taxonomic range for this enzyme is: Eukaryota, Bacteria
Synonyms
3-Keto-DELTA5-steroid isomerase, 3-Ketosteroid DELTA5-->DELTA4-isomerase, 3-ketosteroid isomerase, 3-Oxo steroid DELTA4-DELTA5-isomerase, 3-Oxo-delta5 steroid isomerase, 3-oxo-DELTA5-steroid isomerase, 3-Oxosteroid DELTA4-DELTA5-isomerase, 3-Oxosteroid DELTA5-DELTA4-isomerase, 3-Oxosteroid isomerase, 3beta-HSD, more
REACTION
REACTION DIAGRAM
COMMENTARY hide
ORGANISM
UNIPROT
LITERATURE
a 3-oxo-DELTA5-steroid = a 3-oxo-DELTA4-steroid
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