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| Enzyme Name | | Swiss-prot | KEGG |
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| P06709 |
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| Protein name | Bifunctional protein birA | biotin---[acetyl-CoA-carboxylase] ligasebiotin-[acetyl-CoA carboxylase] synthetasebiotin-[acetyl coenzyme A carboxylase] synthetaseacetyl coenzyme A holocarboxylase synthetaseacetyl CoA holocarboxylase synthetasebiotin:apocarboxylase ligaseBiotin holoenzyme synthetaseHCS |
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| Synonyms | None |
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| Includes | Biotin operon repressorBiotin--{acetyl-CoA-carboxylase} synthetase EC 6.3.4.15Biotin--protein ligase |
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| KEGG pathways | | MAP code | Pathways |
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| MAP00780 | Biotin metabolism |
| Swiss-prot:Accession Number | P06709 |
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| Entry name | BIRA_ECOLI |
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| Activity | ATP + biotin + apo-[acetyl-CoA:carbon-dioxide ligase (ADP-forming)] = AMP + diphosphate + [acetyl-CoA:carbon- dioxide ligase (ADP-forming)]. |
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| Subunit | Monomer. |
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| Subcellular location |
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| Cofactor |
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| Cofactors | Substrates | Products | intermediates |
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| KEGG-id | C00305 | C00002 | C00120 | C04735 | C02188 | C00020 | C00013 | C04681 | C06250 | C05921 |
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| Compound | Magnesium | ATP | Biotin | Apo-[acetyl-CoA:carbon-dioxide ligase (ADP-forming)] | Protein lysine | AMP | Pyrophosphate | [Acetyl-CoA:carbon-dioxide ligase (ADP-forming)] | Holo-[carboxylase] | Biotinyl-5'-AMP |
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| Type | divalent metal (Ca2+, Mg2+) | amine group,nucleotide | amide group,amine group,fatty acid,sulfide group | peptide/protein | amine group,lipid,peptide/protein | amine group,nucleotide | phosphate group/phosphate ion | peptide/protein | amide group,lipid,peptide/protein,sulfide group |
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| 1biaA01 |  | Unbound | Unbound | Unbound | Unbound | Unbound | Unbound | Unbound | Unbound | Unbound |
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| 1bibA01 |  | Unbound | Unbound | Unbound | Unbound | Unbound | Unbound | Unbound | Unbound | Unbound |
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| 1hxdA01 |  | Unbound | Unbound | Unbound | Unbound | Unbound | Unbound | Unbound | Unbound | Unbound |
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| 1hxdB01 |  | Unbound | Unbound | Unbound | Unbound | Unbound | Unbound | Unbound | Unbound | Unbound |
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| 1biaA02 |  | Unbound | Unbound | Unbound | Unbound | Unbound | Unbound | Unbound | Unbound | Unbound |
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| 1bibA02 |  | Unbound | Unbound | Bound:BTN | Unbound | Unbound | Unbound | Unbound | Unbound | Unbound |
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| 1hxdA02 |  | Unbound | Unbound | Bound:BTN | Unbound | Unbound | Unbound | Unbound | Unbound | Unbound |
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| 1hxdB02 |  | Unbound | Unbound | Bound:BTN | Unbound | Unbound | Unbound | Unbound | Unbound | Unbound |
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| 1biaA03 |  | Unbound | Unbound | Unbound | Unbound | Unbound | Unbound | Unbound | Unbound | Unbound |
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| 1bibA03 |  | Unbound | Unbound | Unbound | Unbound | Unbound | Unbound | Unbound | Unbound | Unbound |
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| 1hxdA03 |  | Unbound | Unbound | Unbound | Unbound | Unbound | Unbound | Unbound | Unbound | Unbound |
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| 1hxdB03 |  | Unbound | Unbound | Unbound | Unbound | Unbound | Unbound | Unbound | Unbound | Unbound |
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| References for Catalytic Mechanism | | References | Sections | No. of steps in catalysis |
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| [1] | p.9259 |
| | [4] | Fig.1, p.360 | 2 |
| references | | [1] |
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| Comments | X-RAY CRYSTALLOGRAPHY (2.3 ANGSTROMS) |
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| Medline ID | 93028443 |
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| PubMed ID | 1409631 |
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| Journal | Proc Natl Acad Sci U S A |
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| Year | 1992 |
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| Volume | 89 |
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| Pages | 9257-61 |
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| Authors | Wilson KP, Shewchuk LM, Brennan RG, Otsuka AJ, Matthews BW |
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| Title | Escherichia coli biotin holoenzyme synthetase/bio repressor crystal structure delineates the biotin- and DNA-binding domains. |
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| Related PDB | 1bia,1bib |
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| Related Swiss-prot | P06709 |
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| [2] |
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| PubMed ID | 9750231 |
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| Journal | Methods Enzymol |
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| Year | 1998 |
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| Volume | 295 |
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| Pages | 424-50 |
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| Authors | Beckett D |
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| Title | Energetic methods to study bifunctional biotin operon repressor. |
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| [3] |
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| PubMed ID | 9880519 |
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| Journal | J Biol Chem |
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| Year | 1999 |
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| Volume | 274 |
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| Pages | 1449-57 |
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| Authors | Chapman-Smith A, Morris TW, Wallace JC, Cronan JE Jr |
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| Title | Molecular recognition in a post-translational modification of exceptional specificity. Mutants of the biotinylated domain of acetyl-CoA carboxylase defective in recognition by biotin protein ligase. |
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| [4] |
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| PubMed ID | 10470036 |
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| Journal | Trends Biochem Sci |
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| Year | 1999 |
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| Volume | 24 |
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| Pages | 359-63 |
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| Authors | Chapman-Smith A, Cronan JE Jr |
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| Title | The enzymatic biotinylation of proteins: a post-translational modification of exceptional specificity. |
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| [5] |
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| PubMed ID | 10981714 |
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| Journal | FEBS Lett |
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| Year | 2000 |
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| Volume | 479 |
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| Pages | 93-8 |
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| Authors | Reche PA, Howard MJ, Broadhurst RW, Perham RN |
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| Title | Heteronuclear NMR studies of the specificity of the post-translational modification of biotinyl domains by biotinyl protein ligase. |
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| [6] |
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| PubMed ID | 11353844 |
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| Journal | Proc Natl Acad Sci U S A |
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| Year | 2001 |
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| Volume | 98 |
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| Pages | 6045-50 |
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| Authors | Weaver LH, Kwon K, Beckett D, Matthews BW |
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| Title | Corepressor-induced organization and assembly of the biotin repressor: a model for allosteric activation of a transcriptional regulator. |
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| Related PDB | 1hxd |
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| [7] |
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| PubMed ID | 11714929 |
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| Journal | Protein Sci |
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| Year | 2001 |
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| Volume | 10 |
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| Pages | 2608-17 |
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| Authors | Chapman-Smith A, Mulhern TD, Whelan F, Cronan JE Jr, Wallace JC |
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| Title | The C-terminal domain of biotin protein ligase from E. coli is required for catalytic activity. |
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| [8] |
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| PubMed ID | 11714930 |
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| Journal | Protein Sci |
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| Year | 2001 |
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| Volume | 10 |
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| Pages | 2618-22 |
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| Authors | Weaver LH, Kwon K, Beckett D, Matthews BW |
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| Title | Competing protein:protein interactions are proposed to control the biological switch of the E coli biotin repressor. |
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| [9] |
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| PubMed ID | 15033356 |
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| Journal | J Mol Biol |
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| Year | 2004 |
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| Volume | 337 |
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| Pages | 857-69 |
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| Authors | Brown PH, Cronan JE, Grotli M, Beckett D |
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| Title | The biotin repressor: modulation of allostery by corepressor analogs. |
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| comments | This protein is bifunctional, acting both as a biotin-transferring enzyme and as a transcriptional regulator (see [1]). As the biotin-transferring enzyme, this protein catalyzes two successive reactions. The first reaction is transfer of adenylate from ATP to the carboxylate of biotin, which results in the formation of biotinyl-5'-AMP, releasing pyrophosphate. The second reaction is transfer of the biotin moiety from the intermediate, biotinyl-5'-AMP, to the correct lysine residue of protein substrate, acetyl-CoA carboxylase. However, the detailed mechanism of catalysis has not been elucidated.
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| created | updated |
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| 2004-08-01 | 2009-02-26 |
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