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ilvA [2019-02-24 17:45:47]
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ilvA [2019-02-24 17:45:47]

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
Outlinks
KEGGBsubCycSubtiListUniProtExpression Browser

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)

    • [SW|Cofactors]

  • PLP (according to UniProt)

    • 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

    Mutant

  • BKE21770 (Δ[gene|D0CF32BF81AA1DC7BBBC3E9B667A54F97260DF3F|ilvA]::erm trpC2) available at [http://www.bgsc.org/getdetail.php?bgscid=BKE21770 BGSC], [Pubmed|28189581], upstream reverse: _UP1_CATGTACAGATTCCTTTCTT, downstream forward: _UP4_TAATTTTTTTACACAACCGC
  • BKK21770 (Δ[gene|D0CF32BF81AA1DC7BBBC3E9B667A54F97260DF3F|ilvA]::kan trpC2) available at [http://www.bgsc.org/getdetail.php?bgscid=BKK21770 BGSC], [Pubmed|28189581], upstream reverse: _UP1_CATGTACAGATTCCTTTCTT, downstream forward: _UP4_TAATTTTTTTACACAACCGC

    • Expression vector

  • pGP2289: expression of ''ilvA'' by [SW|pBQ200] in ''B. subtilis'', available in [SW|Jörg Stülke]'s lab

    • lacZ fusion

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

    • References

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