Enzymes
| UniProtKB help_outline | 3,437 proteins |
Reaction participants Show >> << Hide
- Name help_outline dodecanoyl-CoA Identifier CHEBI:57375 Charge -4 Formula C33H54N7O17P3S InChIKeyhelp_outline YMCXGHLSVALICC-GMHMEAMDSA-J SMILEShelp_outline CCCCCCCCCCCC(=O)SCCNC(=O)CCNC(=O)[C@H](O)C(C)(C)COP([O-])(=O)OP([O-])(=O)OC[C@H]1O[C@H]([C@H](O)[C@@H]1OP([O-])([O-])=O)n1cnc2c(N)ncnc12 2D coordinates Mol file for the small molecule Search links Involved in 40 reaction(s) Find molecules that contain or resemble this structure Find proteins in UniProtKB for this molecule
- Name help_outline H+ Identifier CHEBI:15378 Charge 1 Formula H InChIKeyhelp_outline GPRLSGONYQIRFK-UHFFFAOYSA-N SMILEShelp_outline [H+] 2D coordinates Mol file for the small molecule Search links Involved in 9,431 reaction(s) Find molecules that contain or resemble this structure Find proteins in UniProtKB for this molecule
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Namehelp_outline
oxidized [electron-transfer flavoprotein]
Identifier
RHEA-COMP:10685
Reactive part
help_outline
- Name help_outline FAD Identifier CHEBI:57692 Charge -3 Formula C27H30N9O15P2 InChIKeyhelp_outline IMGVNJNCCGXBHD-UYBVJOGSSA-K SMILEShelp_outline Cc1cc2nc3c(nc(=O)[n-]c3=O)n(C[C@H](O)[C@H](O)[C@H](O)COP([O-])(=O)OP([O-])(=O)OC[C@H]3O[C@H]([C@H](O)[C@@H]3O)n3cnc4c(N)ncnc34)c2cc1C 2D coordinates Mol file for the small molecule Search links Involved in 170 reaction(s) Find molecules that contain or resemble this structure Find proteins in UniProtKB for this molecule
- Name help_outline (2E)-dodecenoyl-CoA Identifier CHEBI:57330 Charge -4 Formula C33H52N7O17P3S InChIKeyhelp_outline IRFYVBULXZMEDE-DEEZISNZSA-J SMILEShelp_outline CCCCCCCCC\C=C\C(=O)SCCNC(=O)CCNC(=O)[C@H](O)C(C)(C)COP([O-])(=O)OP([O-])(=O)OC[C@H]1O[C@H]([C@H](O)[C@@H]1OP([O-])([O-])=O)n1cnc2c(N)ncnc12 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
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Namehelp_outline
reduced [electron-transfer flavoprotein]
Identifier
RHEA-COMP:10686
Reactive part
help_outline
- Name help_outline FADH2 Identifier CHEBI:58307 Charge -2 Formula C27H33N9O15P2 InChIKeyhelp_outline YPZRHBJKEMOYQH-UYBVJOGSSA-L SMILEShelp_outline Cc1cc2Nc3c([nH]c(=O)[nH]c3=O)N(C[C@H](O)[C@H](O)[C@H](O)COP([O-])(=O)OP([O-])(=O)OC[C@H]3O[C@H]([C@H](O)[C@@H]3O)n3cnc4c(N)ncnc34)c2cc1C 2D coordinates Mol file for the small molecule Search links Involved in 161 reaction(s) Find molecules that contain or resemble this structure Find proteins in UniProtKB for this molecule
Cross-references
| RHEA:47296 | RHEA:47297 | RHEA:47298 | RHEA:47299 | |
|---|---|---|---|---|
| Reaction direction help_outline | undefined | left-to-right | right-to-left | bidirectional |
| UniProtKB help_outline |
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| MetaCyc help_outline |
Related reactions help_outline
More general form(s) of this reaction
Publications
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Medium-long-chain chimeric human Acyl-CoA dehydrogenase: medium-chain enzyme with the active center base arrangement of long-chain Acyl-CoA dehydrogenase.
Nandy A., Kieweg V., Kraeutle F.G., Vock P., Kuechler B., Bross P., Kim J.J., Rasched I., Ghisla S.
The catalytically essential glutamate residue that initiates catalysis by abstracting the substrate alpha-hydrogen as H+ is located at position 376 (mature MCADH numbering) on loop JK in medium chain acyl-CoA dehydrogenase (MCADH). In long chain acyl-CoA dehydrogenase (LCADH) and isovaleryl-CoA de ... >> More
The catalytically essential glutamate residue that initiates catalysis by abstracting the substrate alpha-hydrogen as H+ is located at position 376 (mature MCADH numbering) on loop JK in medium chain acyl-CoA dehydrogenase (MCADH). In long chain acyl-CoA dehydrogenase (LCADH) and isovaleryl-CoA dehydrogenase (IVDH), the corresponding Glu carrying out the same function is placed at position 255 on the adjacent helix G. These glutamates thus act on substrate approaching from two opposite regions at the active center. We have implemented the topology of LCADH in MCADH by carrying out the two mutations Glu376Gly and Thr255Glu. The resulting chimeric enzyme, "medium-/long" chain acyl-CoA dehydrogenase (MLCADH) has approximately 20% of the activity of MCADH and approximately 25% that of LCADH with its best substrates octanoyl-CoA and dodecanoyl-CoA, respectively. MLCADH exhibits an enhanced rate of reoxidation with oxygen, however, with a much narrower substrate chain length specificity that peaks with dodecanoyl-CoA. This is the same maximum as that of LCADH and is thus significantly shifted from that of native MCADH (hexanoyl/octanoyl-CoA). The putative, common ancestor of LCADH and IVDH has two Glu residues, one each at positions 255 and 376. The corresponding MCADH mutant, Thr255Glu (glu/glu-MCADH), is as active as MCADH with octanoyl-CoA; its activity/chain length profile is, however, much narrower. The topology of the Glu as H+ abstracting base seems an important factor in determining chain length specificity and reactivity in acyl-CoA dehydrogenases. The mechanisms underlying these effects are discussed in view of the three-dimensional structure of MLCADH, which is presented in the accompanying paper [Lee et al. (1996) Biochemistry 35, 12412-12420]. << Less
Biochemistry 35:12402-12411(1996) [PubMed] [EuropePMC]
This publication is cited by 6 other entries.
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Identification and characterization of new long chain acyl-CoA dehydrogenases.
He M., Pei Z., Mohsen A.W., Watkins P., Murdoch G., Van Veldhoven P.P., Ensenauer R., Vockley J.
Long-chain fatty acids are an important source of energy in muscle and heart where the acyl-CoA dehydrogenases (ACADs) participate in consecutive cycles of β-oxidation to generate acetyl-CoA and reducing equivalents for generating energy. However, the role of long-chain fatty acid oxidation in the ... >> More
Long-chain fatty acids are an important source of energy in muscle and heart where the acyl-CoA dehydrogenases (ACADs) participate in consecutive cycles of β-oxidation to generate acetyl-CoA and reducing equivalents for generating energy. However, the role of long-chain fatty acid oxidation in the brain and other tissues that do not rely on fat for energy is poorly understood. Here we characterize two new ACADs, ACAD10 and ACAD11, both with significant expression in human brain. ACAD11 utilizes substrates with primary carbon chain lengths between 20 and 26, with optimal activity towards C22CoA. The combination of ACAD11 with the newly characterized ACAD9 accommodates the full spectrum of long chain fatty acid substrates presented to mitochondrial β-oxidation in human cerebellum. ACAD10 has significant activity towards the branched-chain substrates R and S, 2 methyl-C15-CoA and is highly expressed in fetal but not adult brain. This pattern of expression is similar to that of LCAD, another ACAD previously shown to be involved in long branched chain fatty acid metabolism. Interestingly, the ACADs in human cerebellum were found to have restricted cellular distribution. ACAD9 was most highly expressed in the granular layer, ACAD11 in the white matter, and MCAD in the molecular layer and axons of specific neurons. This compartmentalization of ACADs in the human central nerve system suggests that β-oxidation in cerebellum participates in different functions other than generating energy, for example, the synthesis and/or degradation of unique cellular lipids and catabolism of aromatic amino acids, compounds that are vital to neuronal function. << Less
Mol. Genet. Metab. 102:418-429(2011) [PubMed] [EuropePMC]
This publication is cited by 13 other entries.