KEGG   REACTION: R03176
Entry
R03176                      Reaction                               
Name
3beta-hydroxy-delta5-steroid:NAD+ 3-oxidoreductase
Definition
3beta-Hydroxy-Delta5-steroid + NAD+ <=> 3-Oxo-Delta5-steroid + NADH + H+
Equation
C03836 + C00003 <=> C01034 + C00004 + C00080
Comment
many enzymes also have delta5-delat4-isomerase activity (see ec 5.3.3.1 or R02644) and convert 3beta-hydroxy-delta5-steroid into 3-oxo-delta4-steroid.
general reaction (see R01837, R02216, R02499, R02840, R03327, R04163, R04678, R04849 and R09920)
Reaction class
RC00001  C00003_C00004
RC00144  C01034_C03836
Enzyme
1.1.1.145
Brite
Enzymatic reactions [BR:br08201]
 1. Oxidoreductase reactions
  1.1  Acting on the CH-OH group of donors
   1.1.1  With NAD+ or NADP+ as acceptor
    1.1.1.145
     R03176  3beta-Hydroxy-Delta5-steroid + NAD+ <=> 3-Oxo-Delta5-steroid + NADH + H+
Other DBs
RHEA: 24079

  All links  
Ontology (1)   
   KEGG BRITE (1)   
Chemical substance (5)   
   KEGG COMPOUND (5)   
Chemical reaction (3)   
   KEGG ENZYME (1)   
   KEGG RCLASS (2)   
All databases (9)   

Download RDF
KEGG   REACTION: R02644
Entry
R02644                      Reaction                               
Name
3-oxo-delta5-steroid delta5-delat4-isomerase
Definition
3-Oxo-Delta5-steroid <=> 3-Oxo-Delta4-steroid
Equation
C01034 <=> C00619
Comment
many enzymes also have 3-oxidoreductase activity (see ec 1.1.1.145 or R03176) and convert 3beta-hydroxy-delta5-steroid into 3-oxo-delta4-steroid.
general reaction (see R01837, R02216, R02499, R02840, R03327, R04163, R04678, R04849 and R09920)
Reaction class
RC00762  C00619_C01034
Enzyme
5.3.3.1
Brite
Enzymatic reactions [BR:br08201]
 5. Isomerase reactions
  5.3  Intramolecular oxidoreductases
   5.3.3  Transposing C=C bonds
    5.3.3.1
     R02644  3-Oxo-Delta5-steroid <=> 3-Oxo-Delta4-steroid
IUBMB reaction hierarchy [BR:br08202]
 5. Isomerase reactions
  5.3.3.1
   R02644  3-Oxo-Delta5-steroid <=> 3-Oxo-Delta4-steroid
Other DBs
RHEA: 14712

  All links  
Ontology (2)   
   KEGG BRITE (2)   
Chemical substance (2)   
   KEGG COMPOUND (2)   
Chemical reaction (2)   
   KEGG ENZYME (1)   
   KEGG RCLASS (1)   
All databases (6)   

Download RDF
DBGET integrated database retrieval system