SubtiBank SubtiBank
cshA [2017-03-20 09:57:08]
An ordered knock out library of all non-essential genes in B. subtilis is now available at Addgene. Information on ordering a copy can be found here. See Koo et al. 2017 for details about library construction.

cshA [2017-03-20 09:57:08]

DEAD-box RNA helicase, important for adaptation to low temperatures
locus
BSU04580
pI
9.00
mw
57.00 kDa
protein length
511 aa Sequence Blast
gene length
1533 bp Sequence Blast
function
RNA helicase
product
DEAD-box RNA helicase
essential
no
synonyms
ydbR

Genomic Context

      

categories

  • [category|SW 3|Information processing] → [category|SW 3.2|RNA synthesis and degradation] → [category|SW 3.2.3|DEAD-box RNA helicases]
  • [category|SW 3|Information processing] → [category|SW 3.3|Protein synthesis, modification and degradation] → [category|SW 3.3.1|Translation] → [category|SW 3.3.1.6|Ribosome assembly]
  • [category|SW 4|Lifestyles] → [category|SW 4.3|Coping with stress] → [category|SW 4.3.5|Cold stress proteins]
  • [category|SW 6|Groups of genes] → [category|SW 6.2|Membrane proteins]
  • Gene

    Coordinates on the chromosome (coding sequence)
    511,106 -> 512,641

    Phenotypes of a mutant

  • poor growth at low temperatures (16 to 20°C) [Pubmed|23175651]
  • reduced number of [SW|ribosome]s [Pubmed|23175651]
  • no expression of the ''[gene|C87E74FB67B53DD1C68916AA121388C60CE66E92|frlB]-[gene|9E3FF9D0B33D7EFEA3B61FF863BB46CC6DFD4F9B|frlO]-[gene|8256CAAEC591E40A8CB172FF053E03BFFD5A4B54|frlN]-[gene|1F245030D0C81DC96FC0642199CA00579CF46D06|frlM]-[gene|C3823AFED3E5C3D1EA04C38D861239468C9E6349|frlD]'' operon [Pubmed|23175651]
  • strongly increased expression of the ''[gene|6F21B5E9EEF67E96808A1DEFA3A80DA2A0FF9462|pftA]-[gene|F6C3B267106E7510FABECF0B13ABF222901689A9|pftB]'' operon [Pubmed|23175651]
  • transcription profile resulting from ''[gene|872CCB5A49C9000BD95E4B0472556D5F60F7D7A4|rny]'' depletion: [http://www.ncbi.nlm.nih.gov/geo/query/acc.cgi?acc=GSE36877 GEO] [Pubmed|23175651]
  • The protein

    Catalyzed reaction/ biological activity

  • RNA helicase
  • required for [SW|ribosome] assembly (biogenesis of the large subunit) [Pubmed|23175651]
  • Protein family

  • helicase C-terminal domain (according to Swiss-Prot) [SW|DEAD-box RNA helicases]
  • Paralogous protein(s)

  • [protein|C83BD80DE0FD187D07B914F64696438ED5130107|CshB], [protein|EACD0C84AA3CE41EF05EAA3D25AA1153293EB562|DeaD], [protein|0362D937D985846AEE4D0DEA57B62F915E8D35E5|YfmL]
  • Structure

  • [PDB|5IVL] [Pubmed|28238534]
  • [SW|Localization]

  • cytoplasma, colocalizes with the ribosomes [Pubmed|16352840,27708634], cell membrane [Pubmed|20572937]
  • Expression and Regulation

    genes
    [gene|E169F9711635457EA65FA71CCE9D7FF29DD8DF02|cshA]
    description
    [pubmed|22383849]
    view in new tab

    Biological materials

    Mutant

  • GP1035 (aphA3), available in [SW|Jörg Stülke]'s lab
  • GP1083 (cat), available in [SW|Jörg Stülke]'s lab
  • Expression vector

  • for expression/ purification from ''B. subtilis'' with C-terminal Strep-tag, for [SW|SPINE], in [SW|pGP382]: pGP1387, available in [SW|Jörg Stülke]'s lab
  • for expression/ purification from ''B. subtilis'' with C-terminal Strep-tag, for [SW|SPINE], expression from the native chromomsomal site: GP1026 (aphA3), available in [SW|Jörg Stülke]'s lab
  • for expression/ purification from ''E. coli'' with N-terminal His-tag, in [SW|pWH844]: pGP1386, available in [SW|Jörg Stülke]'s lab
  • GFP fusion

  • pGP1369 for chromosomal expression of CshA-YFP, available in [SW|Jörg Stülke]'s lab
  • ''B. subtilis'' GP1081 cshA-gfp spc, available in [SW|Jörg Stülke]'s lab,
  • GP1721 (in [SW|pBP43]), expression of '' cshA-GFP''::''spc'' under the native promoter, available in [SW|Jörg Stülke]'s lab [Pubmed|27708634]
  • two-hybrid system

  • B. pertussis adenylate cyclase-based bacterial two hybrid system ([SW|BACTH]), available in [SW|Jörg Stülke]'s lab
  • FLAG-tag construct

  • GP1010 (spc, based on [SW|pGP1331]), available in [SW|Jörg Stülke]'s lab
  • GP1074 (tet), available in [SW|Jörg Stülke]'s lab
  • Labs working on this gene/protein

  • [SW|Mohamed Marahiel], Marburg University, Germany [http://www.uni-marburg.de/fb15/fachgebiete/bio/marahiel?language_sync=1 homepage]
  • References

  • 20572937,23175651,21803996,16352840,27708634,27965645,28238534