Reaction participants Show >> << Hide
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Namehelp_outline
N6-[(R)-dihydrolipoyl]-L-lysyl-[protein]
Identifier
RHEA-COMP:10475
Reactive part
help_outline
- Name help_outline N6-[(R)-dihydrolipoyl]-L-lysine residue Identifier CHEBI:83100 Charge 0 Formula C14H26N2O2S2 SMILEShelp_outline SCC[C@H](S)CCCCC(=O)NCCCC[C@H](N-*)C(-*)=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
- Name help_outline NAD+ Identifier CHEBI:57540 (Beilstein: 3868403) help_outline Charge -1 Formula C21H26N7O14P2 InChIKeyhelp_outline BAWFJGJZGIEFAR-NNYOXOHSSA-M SMILEShelp_outline NC(=O)c1ccc[n+](c1)[C@@H]1O[C@H](COP([O-])(=O)OP([O-])(=O)OC[C@H]2O[C@H]([C@H](O)[C@@H]2O)n2cnc3c(N)ncnc23)[C@@H](O)[C@H]1O 2D coordinates Mol file for the small molecule Search links Involved in 1,142 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 9,176 reaction(s) Find molecules that contain or resemble this structure Find proteins in UniProtKB for this molecule
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Namehelp_outline
N6-[(R)-lipoyl]-L-lysyl-[protein]
Identifier
RHEA-COMP:10474
Reactive part
help_outline
- Name help_outline N6-[(R)-lipoyl]-L-lysine residue Identifier CHEBI:83099 Charge 0 Formula C14H24N2O2S2 SMILEShelp_outline *-N[C@@H](CCCCNC(=O)CCCC[C@@H]1CCSS1)C(-*)=O 2D coordinates Mol file for the small molecule Search links Involved in 12 reaction(s) Find molecules that contain or resemble this structure Find proteins in UniProtKB for this molecule
- Name help_outline NADH Identifier CHEBI:57945 (Beilstein: 3869564) help_outline Charge -2 Formula C21H27N7O14P2 InChIKeyhelp_outline BOPGDPNILDQYTO-NNYOXOHSSA-L SMILEShelp_outline NC(=O)C1=CN(C=CC1)[C@@H]1O[C@H](COP([O-])(=O)OP([O-])(=O)OC[C@H]2O[C@H]([C@H](O)[C@@H]2O)n2cnc3c(N)ncnc23)[C@@H](O)[C@H]1O 2D coordinates Mol file for the small molecule Search links Involved in 1,073 reaction(s) Find molecules that contain or resemble this structure Find proteins in UniProtKB for this molecule
Cross-references
RHEA:15045 | RHEA:15046 | RHEA:15047 | RHEA:15048 | |
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Reaction direction help_outline | undefined | left-to-right | right-to-left | bidirectional |
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Publications
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Expression, purification, and physical characterization of Escherichia coli lipoyl(octanoyl)transferase.
Nesbitt N.M., Baleanu-Gogonea C., Cicchillo R.M., Goodson K., Iwig D.F., Broadwater J.A., Haas J.A., Fox B.G., Booker S.J.
Lipoic acid is a sulfur-containing 8-carbon fatty acid that functions as a central cofactor in multienzyme complexes that are involved in the oxidative decarboxylation of glycine and several alpha-keto acids. In its functional form, it is bound covalently in an amide linkage to the epsilon-amino g ... >> More
Lipoic acid is a sulfur-containing 8-carbon fatty acid that functions as a central cofactor in multienzyme complexes that are involved in the oxidative decarboxylation of glycine and several alpha-keto acids. In its functional form, it is bound covalently in an amide linkage to the epsilon-amino group of a conserved lysine residue of the "lipoyl bearing subunit," resulting in a long "swinging arm" that shuttles intermediates among the requisite active sites. In Escherichia coli and many other organisms, the lipoyl cofactor can be synthesized endogenously. The 8-carbon fatty-acyl chain is constructed via the type II fatty acid biosynthetic pathway as an appendage to the acyl carrier protein (ACP). Lipoyl(octanoyl)transferase (LipB) transfers the octanoyl chain from ACP to the target lysine acceptor, generating the substrate for lipoyl synthase (LS), which subsequently catalyzes insertion of both sulfur atoms into the C-6 and C-8 positions of the octanoyl chain. In this study, we present a three-step isolation procedure that results in a 14-fold purification of LipB to >95% homogeneity in an overall yield of 25%. We also show that the protein catalyzes the transfer of the octanoyl group from octanoyl-ACP to apo-H protein, which is the lipoyl bearing subunit of the glycine cleavage system. The specific activity of the purified protein is 0.541 U mg(-1), indicating a turnover number of approximately 0.2 s(-1), and the apparent Km values for octanoyl-ACP and apo-H protein are 10.2+/-4.4 and 13.2+/-2.9 microM, respectively. << Less
Protein Expr. Purif. 39:269-282(2005) [PubMed] [EuropePMC]
This publication is cited by 2 other entries.
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Preparation and properties of highly purified diaphorase.
SAVAGE N.
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Intermediates in the catalytic action of lipoyl dehydrogenase (diaphorase).
MASSEY V., GIBSON Q.H., VEEGER C.