|Superclasses:||Reactions Classified By Conversion Type → Simple Reactions → Chemical Reactions|
|Reactions Classified By Substrate → Small-Molecule Reactions|
EC Number: 1.3.8.-
Enzymes and Genes:
|Methylomonas sp. 16a :||diapophytoene desaturase
|Staphylococcus aureus :||dehydrosqualene desaturase
188.8.131.52: 15-cis-4,4'-diapophytoene + 4 FAD + 4 H+ = all-trans-4,4'-diapolycopene + 4 FADH2 ,
1.3.8.o: 15-cis-4,4'-diapophytoene + 3 FAD + 3 H+ = all-trans-4,4'-diaponeurosporene + 3 FADH2
The reaction direction shown, that is, A + B ↔ C + D versus C + D ↔ A + B, is in accordance with the direction in which it was curated.
Most BioCyc compounds have been protonated to a reference pH value of 7.3, and some reactions have been computationally balanced for hydrogen by adding free protons. Please see the PGDB Concepts Guide for more information.
Mass balance status: Balanced.
Enzyme Commission Primary Name: 1.3.8 -- With a flavin as acceptor
Standard Gibbs Free Energy (ΔrG'° in kcal/mol): -19.315643 [Latendresse13]
This is one of several successive reactions catalyzed by 4,4'-diapophytoene desaturase.
Unification Links: Rhea:31402
Raisig01: Raisig A, Sandmann G (2001). "Functional properties of diapophytoene and related desaturases of C(30) and C(40) carotenoid biosynthetic pathways." Biochim Biophys Acta 1533(2);164-70. PMID: 11566453
Wieland94: Wieland B, Feil C, Gloria-Maercker E, Thumm G, Lechner M, Bravo JM, Poralla K, Gotz F (1994). "Genetic and biochemical analyses of the biosynthesis of the yellow carotenoid 4,4'-diaponeurosporene of Staphylococcus aureus." J Bacteriol 176(24);7719-26. PMID: 8002598
©2015 SRI International, 333 Ravenswood Avenue, Menlo Park, CA 94025-3493