Enzymes
| UniProtKB help_outline | 2,434 proteins |
| Enzyme class help_outline |
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Reaction participants Show >> << Hide
- Name help_outline a quinone Identifier CHEBI:132124 Charge 0 Formula C6O2R4 SMILEShelp_outline O=C1C(*)=C(*)C(=O)C(*)=C1* 2D coordinates Mol file for the small molecule Search links Involved in 127 reaction(s) Find molecules that contain or resemble this structure Find proteins in UniProtKB for this molecule
- Name help_outline protoporphyrinogen IX Identifier CHEBI:57307 Charge -2 Formula C34H38N4O4 InChIKeyhelp_outline UHSGPDMIQQYNAX-UHFFFAOYSA-L SMILEShelp_outline Cc1c2Cc3[nH]c(Cc4[nH]c(Cc5[nH]c(Cc([nH]2)c1CCC([O-])=O)c(CCC([O-])=O)c5C)c(C=C)c4C)c(C=C)c3C 2D coordinates Mol file for the small molecule Search links Involved in 8 reaction(s) Find molecules that contain or resemble this structure Find proteins in UniProtKB for this molecule
- Name help_outline a quinol Identifier CHEBI:24646 Charge 0 Formula C6H2O2R4 SMILEShelp_outline OC1=C(*)C(*)=C(O)C(*)=C1* 2D coordinates Mol file for the small molecule Search links Involved in 238 reaction(s) Find molecules that contain or resemble this structure Find proteins in UniProtKB for this molecule
- Name help_outline protoporphyrin IX Identifier CHEBI:57306 (Beilstein: 3897489,9313467) help_outline Charge -2 Formula C34H32N4O4 InChIKeyhelp_outline KSFOVUSSGSKXFI-UJJXFSCMSA-L SMILEShelp_outline Cc1c(CCC([O-])=O)c2cc3[nH]c(cc4nc(cc5[nH]c(cc1n2)c(C)c5C=C)c(C)c4C=C)c(C)c3CCC([O-])=O 2D coordinates Mol file for the small molecule Search links Involved in 9 reaction(s) Find molecules that contain or resemble this structure Find proteins in UniProtKB for this molecule
Cross-references
| RHEA:65032 | RHEA:65033 | RHEA:65034 | RHEA:65035 | |
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| Reaction direction help_outline | undefined | left-to-right | right-to-left | bidirectional |
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Related reactions help_outline
Specific form(s) of this reaction
More general form(s) of this reaction
Publications
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Heme biosynthesis is coupled to electron transport chains for energy generation.
Moebius K., Arias-Cartin R., Breckau D., Haennig A.L., Riedmann K., Biedendieck R., Schroeder S., Becher D., Magalon A., Moser J., Jahn M., Jahn D.
Cellular energy generation uses membrane-localized electron transfer chains for ATP synthesis. Formed ATP in turn is consumed for the biosynthesis of cellular building blocks. In contrast, heme cofactor biosynthesis was found driving ATP generation via electron transport after initial ATP consumpt ... >> More
Cellular energy generation uses membrane-localized electron transfer chains for ATP synthesis. Formed ATP in turn is consumed for the biosynthesis of cellular building blocks. In contrast, heme cofactor biosynthesis was found driving ATP generation via electron transport after initial ATP consumption. The FMN enzyme protoporphyrinogen IX oxidase (HemG) of Escherichia coli abstracts six electrons from its substrate and transfers them via ubiquinone, cytochrome bo(3) (Cyo) and cytochrome bd (Cyd) oxidase to oxygen. Under anaerobic conditions electrons are transferred via menaquinone, fumarate (Frd) and nitrate reductase (Nar). Cyo, Cyd and Nar contribute to the proton motive force that drives ATP formation. Four electron transport chains from HemG via diverse quinones to Cyo, Cyd, Nar, and Frd were reconstituted in vitro from purified components. Characterization of E. coli mutants deficient in nar, frd, cyo, cyd provided in vivo evidence for a detailed model of heme biosynthesis coupled energy generation. << Less
Proc. Natl. Acad. Sci. U.S.A. 107:10436-10441(2010) [PubMed] [EuropePMC]
This publication is cited by 3 other entries.