Enzymes
| UniProtKB help_outline | 5 proteins |
| Enzyme class help_outline |
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Namehelp_outline
apo-[3-methylcrotonoyl-CoA:carbon-dioxide ligase (ADP-forming)]
Identifier
RHEA-COMP:10514
Reactive part
help_outline
- Name help_outline L-lysine residue Identifier CHEBI:29969 Charge 1 Formula C6H13N2O SMILEShelp_outline C([C@@H](C(*)=O)N*)CCC[NH3+] 2D coordinates Mol file for the small molecule Search links Involved in 137 reaction(s) Find molecules that contain or resemble this structure Find proteins in UniProtKB for this molecule
- Name help_outline biotin Identifier CHEBI:57586 (Beilstein: 10186323) help_outline Charge -1 Formula C10H15N2O3S InChIKeyhelp_outline YBJHBAHKTGYVGT-ZKWXMUAHSA-M SMILEShelp_outline [H][C@]12CS[C@@H](CCCCC([O-])=O)[C@@]1([H])NC(=O)N2 2D coordinates Mol file for the small molecule Search links Involved in 14 reaction(s) Find molecules that contain or resemble this structure Find proteins in UniProtKB for this molecule
- Name help_outline ATP Identifier CHEBI:30616 (Beilstein: 3581767) help_outline Charge -4 Formula C10H12N5O13P3 InChIKeyhelp_outline ZKHQWZAMYRWXGA-KQYNXXCUSA-J SMILEShelp_outline Nc1ncnc2n(cnc12)[C@@H]1O[C@H](COP([O-])(=O)OP([O-])(=O)OP([O-])([O-])=O)[C@@H](O)[C@H]1O 2D coordinates Mol file for the small molecule Search links Involved in 1,284 reaction(s) Find molecules that contain or resemble this structure Find proteins in UniProtKB for this molecule
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Namehelp_outline
holo-[3-methylcrotonoyl-CoA:carbon-dioxide ligase (ADP-forming)]
Identifier
RHEA-COMP:10515
Reactive part
help_outline
- Name help_outline N6-biotinyl-L-lysine residue Identifier CHEBI:83144 Charge 0 Formula C16H26N4O3S SMILEShelp_outline *-N[C@@H](CCCCNC(=O)CCCC[C@@H]1SC[C@@H]2NC(=O)N[C@H]12)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 AMP Identifier CHEBI:456215 Charge -2 Formula C10H12N5O7P InChIKeyhelp_outline UDMBCSSLTHHNCD-KQYNXXCUSA-L SMILEShelp_outline Nc1ncnc2n(cnc12)[C@@H]1O[C@H](COP([O-])([O-])=O)[C@@H](O)[C@H]1O 2D coordinates Mol file for the small molecule Search links Involved in 512 reaction(s) Find molecules that contain or resemble this structure Find proteins in UniProtKB for this molecule
- Name help_outline diphosphate Identifier CHEBI:33019 (Beilstein: 185088) help_outline Charge -3 Formula HO7P2 InChIKeyhelp_outline XPPKVPWEQAFLFU-UHFFFAOYSA-K SMILEShelp_outline OP([O-])(=O)OP([O-])([O-])=O 2D coordinates Mol file for the small molecule Search links Involved in 1,139 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 9,521 reaction(s) Find molecules that contain or resemble this structure Find proteins in UniProtKB for this molecule
Cross-references
| RHEA:24376 | RHEA:24377 | RHEA:24378 | RHEA:24379 | |
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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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[Synthesis of biotin in beta-methylcrotonyl-CoA-carboxylase by holocarboxylase synthetase].
Hopner T., Knappe J.
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Selectivity in post-translational biotin addition to five human carboxylases.
Ingaramo M., Beckett D.
Human holocarboxylase synthetase (HCS) catalyzes linkage of the vitamin biotin to the biotin carboxyl carrier protein (BCCP) domain of five biotin-dependent carboxylases. In the two-step reaction, the activated intermediate, bio-5'-AMP, is first synthesized from biotin and ATP, followed by covalen ... >> More
Human holocarboxylase synthetase (HCS) catalyzes linkage of the vitamin biotin to the biotin carboxyl carrier protein (BCCP) domain of five biotin-dependent carboxylases. In the two-step reaction, the activated intermediate, bio-5'-AMP, is first synthesized from biotin and ATP, followed by covalent linkage of the biotin moiety to a specific lysine residue of each carboxylase BCCP domain. Selectivity in HCS-catalyzed biotinylation to the carboxylases was investigated in single turnover stopped flow and quench flow measurements of biotin transfer to the minimal biotin acceptor BCCP fragments of the carboxylases. The results demonstrate that biotinylation of the BCCP fragments of the mitochondrial carboxylases propionyl-CoA carboxylase, pyruvate carboxylase, and methylcrotonoyl-CoA carboxylase is fast and limited by the bimolecular association rate of the enzyme with substrate. By contrast, biotinylation of the acetyl-CoA carboxylase 1 and 2 (ACC1 and ACC2) fragments, both of which are accessible to HCS in the cytoplasm, is slow and displays a hyperbolic dependence on substrate concentration. The correlation between HCS accessibility to biotin acceptor substrates and the kinetics of biotinylation suggests that mitochondrial carboxylase sequences evolved to produce fast association rates with HCS in order to ensure biotinylation prior to mitochondrial import. In addition, the results are consistent with a role for HCS specificity in dictating biotin distribution among carboxylases. << Less
J Biol Chem 287:1813-1822(2012) [PubMed] [EuropePMC]
This publication is cited by 1 other entry.
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The enzymatic biotinylation of proteins: a post-translational modification of exceptional specificity.
Chapman-Smith A., Cronan J.E. Jr.
Biotin is a coenzyme essential to all life forms. The vitamin has biological activity only when covalently attached to certain key metabolic enzymes. Most organisms have only one enzyme for attachment of biotin to other proteins and the sequences of these proteins and their substrate proteins are ... >> More
Biotin is a coenzyme essential to all life forms. The vitamin has biological activity only when covalently attached to certain key metabolic enzymes. Most organisms have only one enzyme for attachment of biotin to other proteins and the sequences of these proteins and their substrate proteins are strongly conserved throughout nature. Structures of both the biotin ligase and the biotin carrier protein domain from Escherichia coli have been determined. These, together with mutational analyses of biotinylated proteins, are beginning to elucidate the exceptional specificity of this protein modification. << Less
Trends Biochem Sci 24:359-363(1999) [PubMed] [EuropePMC]
This publication is cited by 1 other entry.