Difference between revisions of "PrfA"

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Revision as of 14:49, 16 May 2013

  • Description: peptide chain release factor 1

Gene name prfA
Synonyms
Essential yes PubMed
Product peptide chain release factor 1
Function translation
Gene expression levels in SubtiExpress: prfA
MW, pI 40 kDa, 4.824
Gene length, protein length 1068 bp, 356 aa
Immediate neighbours ywkE, ywkD
Sequences Protein DNA DNA_with_flanks
Genetic context
PrfA context.gif
This image was kindly provided by SubtiList
Expression at a glance   PubMed
PrfA expression.png
























Categories containing this gene/protein

translation, essential genes

This gene is a member of the following regulons

The gene

Basic information

  • Locus tag: BSU37010

Phenotypes of a mutant

essential PubMed

Database entries

  • DBTBS entry: no entry
  • SubtiList entry: [1]

Additional information

The protein

Basic information/ Evolution

  • Catalyzed reaction/ biological activity: binds to the ribosome through specific recognition of messenger RNA stop codons and triggers hydrolysis of the bond between the nascent polypeptide and the transfer RNA at the peptidyl-tRNA site, thereby releasing the newly synthesized protein. PrfA is highly specific for a U in the first stop-codon position and recognizes UAA and UAG
  • Protein family: prokaryotic/mitochondrial release factor family (according to Swiss-Prot)
  • Paralogous protein(s):

Extended information on the protein

  • Kinetic information:
  • Domains:
  • Modification:
  • Cofactor(s):
  • Effectors of protein activity:

Database entries

  • Structure:
  • KEGG entry: [2]
  • E.C. number:

Additional information

Expression and regulation

  • Operon:
  • Sigma factor:
  • Regulation:
  • Regulatory mechanism:
  • Additional information:

Biological materials

  • Mutant:
  • Expression vector:
  • lacZ fusion:
  • GFP fusion:
  • two-hybrid system:
  • Antibody:

Labs working on this gene/protein

Your additional remarks

References

Johan Sund, Martin Andér, Johan Aqvist
Principles of stop-codon reading on the ribosome.
Nature: 2010, 465(7300);947-50
[PubMed:20512119] [WorldCat.org] [DOI] (I p)

Daniel J Rigden, Peter Setlow, Barbara Setlow, Irina Bagyan, Richard A Stein, Mark J Jedrzejas
PrfA protein of Bacillus species: prediction and demonstration of endonuclease activity on DNA.
Protein Sci: 2002, 11(10);2370-81
[PubMed:12237459] [WorldCat.org] [DOI] (P p)