SubtiBank SubtiBank
infB
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infB

translation initiation factor IF-2
locus
BSU_16630
pI
5.19
mw
78.35 kDa
protein length
716 aa Sequence Blast
gene length
2151 bp Sequence Blast
function
translation
product
initiation factor IF-2
essential
yes
synonyms

Genomic Context

      

categories

  • [category|SW 3|Information processing] → [category|SW 3.3|Protein synthesis, modification and degradation] → [category|SW 3.3.1|Translation] → [category|SW 3.3.1.11|Translation factors]
  • [category|SW 3|Information processing] → [category|SW 3.5|Targets of second messengers] → [category|SW 3.5.3|Targets of (p)ppGpp]
  • [category|SW 6|Groups of genes] → [category|SW 6.1|Essential genes]
  • Gene

    Coordinates
    1,734,009 1,736,159

    Phenotypes of a mutant

  • essential [Pubmed|12682299]
  • The protein

    Catalyzed reaction/ biological activity

  • Putative cellular metabolic sensor and regulator that oscillates between an active GTP-bound form under conditions allowing active protein syntheses and an inactive ppGpp-bound form when depleting of nutrients [PubMed|16968770]
  • Protein family

  • [SW|TRAFAC class translation factor GTPase superfamily] (according to UniProt)
  • [SW|Classic translation factor GTPase family] (according to UniProt)
  • [SW|Domains]

  • Nucleotide-binding domain that competitively binds GTP or ppGpp [Pubmed|16968770]
  • tr-type G domain (aa 217-386) (according to UniProt)
  • Effectors of protein activity

  • GTP and ppGpp [Pubmed|16968770]
  • Structure

  • [PDB|1D1N] (fMet-tRNA-fMet binding domain, Geobacillus stearothermophilus), [PDB|1Z9B] (C1-subdomain, Geobacillus stearothermophilus)
  • [SW|Localization]

  • cytoplasm (according to UniProt)
  • Expression and Regulation

    Operons

    genes
    [gene|9F6C447900410BF64409E5C41A11C76968DADAFA|ylxS]-[gene|8887ADC77C43F21CD375BDAA4D38E940786DAD4F|nusA]-[gene|F4097349A563503468A2A14F062AEAC532C7917A|ylxR]-[gene|7BFA65857F69855DBB3BB64D93B4ED2F09DC705B|rplGA]-[gene|378B77412D0DEA220A97DEC246410509D9B74D46|infB]-[gene|24835CE6CD2E1F183DB9121F29A63101718B5DF9|ylxP]-[gene|B3119A40393A288EF34FC3E9839B6E40AC6A6EA0|rbfA]
    description
    [Pubmed|8491709]

    sigma factors

  • [protein|360F48D576DE950DF79C1A2677B7A35A8D8CC30C|SigA]: sigma factor, [Pubmed|8491709], in [regulon|360F48D576DE950DF79C1A2677B7A35A8D8CC30C|SigA regulon]
  • [protein|580011DE5DC40EC9E7E0512791D328FAA010DCB8|SigB]: sigma factor, [Pubmed|15805528,26577401], in [regulon|580011DE5DC40EC9E7E0512791D328FAA010DCB8|SigB regulon]
  • regulatory mechanism

  • [regulon|stringent response|stringent response]: negative regulation, in [regulon|stringent response|stringent response]
  • [protein|8887ADC77C43F21CD375BDAA4D38E940786DAD4F|NusA]: attenuation, [protein|8887ADC77C43F21CD375BDAA4D38E940786DAD4F|NusA] stimulates termination [Reference|http://www.nature.com/articles/nmicrobiol20157], in [regulon|8887ADC77C43F21CD375BDAA4D38E940786DAD4F|NusA regulon]
  • regulation

  • autoregulation [SW|NusA] [http://www.nature.com/articles/nmicrobiol20157 reference]
  • induced by glucose [pubmed|30355672]
  • view in new tab

    References

  • 11948165,8491709,16968770,32576694