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ilvA [2017-8-11 16:0:3]
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ilvA [2017-8-11 16:0:3]

threonine dehydratase
locus
BSU21770
pI
5.54
mw
46.49 kDa
protein length
422 aa Sequence Blast
gene length
1266 bp Sequence Blast
function
biosynthesis of branched-chain amino acids
product
threonine dehydratase
essential
no
ec
4.3.1.19
synonyms

Genomic Context

      

categories

  • [category|SW 2|Metabolism] → [category|SW 2.3|Amino acid/ nitrogen metabolism] → [category|SW 2.3.1|Biosynthesis/ acquisition of amino acids] → [category|SW 2.3.1.12|Biosynthesis/ acquisition of branched-chain amino acids]
  • Gene

    Coordinates
    2,292,769 → 2,294,037

    The protein

    Catalyzed reaction/ biological activity

  • L-threonine = 2-oxobutanoate + NH3 (according to Swiss-Prot)
  • Protein family

  • ccmF/cycK/ccl1/nrfE/ccsA family (according to Swiss-Prot)
  • Structure

  • [PDB|1TDJ] (the enzyme from ''E. coli'', 39% identity) [Pubmed|9562556]
  • Additional information

  • subject to Clp-dependent proteolysis upon glucose starvation [PubMed|17981983]
  • Expression and Regulation

    Operons

    genes
    [gene|D0CF32BF81AA1DC7BBBC3E9B667A54F97260DF3F|ilvA]-[gene|DE113BB32600349C472D3417B760D640B65B01AB|ypmP]
    description
    [Pubmed|15060025]

    regulatory mechanism

  • [protein|90ACE0DECA58D3C1A55E135120F7A0C1C920571C|CodY]: repression, [Pubmed|12618455], in [regulon|90ACE0DECA58D3C1A55E135120F7A0C1C920571C|CodY regulon]
  • regulation

  • repressed during growth in the presence of branched chain amino acids ([protein|90ACE0DECA58D3C1A55E135120F7A0C1C920571C|CodY]) [Pubmed|12618455]
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    Biological materials

    lacZ fusion

  • pGP519 (in [protein|search|pAC5]), available in [SW|Stülke] lab
  • References

  • 18083814,12618455,15060025,9562556,12618455,12107147,24163341,26220295