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mutTA [Tue Dec 13 2016 11:16:35 GMT+0100 (CET)]
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mutTA [Tue Dec 13 2016 11:16:35 GMT+0100 (CET)]

error prevention oxidized guanine system, confers protection against oxidative stress to vegetative cells, moreover the protein has RNA pyrophosphohydrolase activity
locus
BSU30630
pI
5.95
mw
18.00 kDa
function
DNA repair, RNA degradation
product
8-oxo-dGTPase (antimutator), RNA pyrophosphohydrolase
essential
no
synonyms
ytkD

Genomic Context

      

categories

  • [category|SW 3|Information processing] → [category|SW 3.1|Genetics] → [category|SW 3.1.5|DNA repair/ recombination]
  • [category|SW 3|Information processing] → [category|SW 3.1|Genetics] → [category|SW 3.1.5|DNA repair/ recombination] → [category|SW 3.1.5.5|Oxidized guanine (GO) DNA repair system]
  • [category|SW 3|Information processing] → [category|SW 3.2|RNA synthesis and degradation] → [category|SW 3.2.4|RNases] → [category|SW 3.2.4.3|RNA pyrophosphohydrolase]
  • [category|SW 4|Lifestyles] → [category|SW 4.2|Sporulation] → [category|SW 4.2.1|Sporulation proteins] → [category|SW 4.2.1.4|Sporulation proteins/ other]
  • [SW|Categories] containing this gene/protein

  • [SW|DNA repair/ recombination], [SW|sporulation proteins], [SW|RNases]
  • This gene is a member of the following [SW|regulons]

  • [SW|SigF regulon]
  • Gene

    Coordinates on the chromosome (coding sequence)
    3,134,983 -> 3,135,459

    The protein

    Catalyzed reaction/ biological activity

  • removal of pyrophosphate from the 5' end of mRNAs to make the RNA accessible for degradation by [SW|RNases] [Pubmed|21925382]
  • RppH requires at least two unpaired nucleotides at the 5' end of its RNA substrates and prefers three or more. The second of these 5'-terminal nucleotides must be G, whereas a less strict preference for a purine is evident at the third position, and A is slightly favored over G at the first position [Pubmed|23610425,23610407]
  • Protein family

  • [SW|Nudix hydrolase] family (according to Swiss-Prot)
  • Structure

  • [PDB|4JZV] [Pubmed|23610407]
  • Expression and Regulation

    Operon

  • ''[SW|mutTA]'' [Pubmed|9387221]
  • [SW|Sigma factor]

  • [protein|search|SigA] [Pubmed|14761999], [protein|search|SigF] [Pubmed|14761999]
  • Regulation

  • expressed during logarithmic growth ([protein|search|SigA]) and early during sporulation in the forespore ([protein|search|SigF]) [Pubmed|16497325]
  • References

    Reviews

  • 22568516
  • Original publications

  • 16513759,16497325,14761999,19011023,9387221,15576788,21925382,23610425,23610407