SubtiBank SubtiBank
tnrA

tnrA

transcriptional pleiotropic regulator (MerR family) involved in global nitrogen regulation
locus
BSU13310
pI
10.23
mw
12.99 kDa
protein length
110 aa Sequence Blast
gene length
330 bp Sequence Blast
function
regulation of nitrogen assimilation
product
transcription activator/ repressor (MerR family)
essential
no
synonyms
scgR

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 2.3.1.1|Biosynthesis/ acquisition of glutamate/ glutamine/ ammonium assimilation]
  • [category|SW 3|Information processing] → [category|SW 3.4|Regulation of gene expression] → [category|SW 3.4.2|Transcription factors and their control] → [category|SW 3.4.2.5|Transcription factors/ other]
  • [category|SW 3|Information processing] → [category|SW 3.4|Regulation of gene expression] → [category|SW 3.4.5|Regulators of core metabolism]
  • Gene

    Coordinates
    1,397,411 → 1,397,743

    The protein

    Protein family

  • [SW|MerR family]
  • Effectors of protein activity

  • feedback-inhibited [protein|68F4E792B99F86AE9E8F06D2200E128937331F5D|GlnA] prevents [protein|857EF1AC54DEA0690C01B7F8CEFFD16312C58F20|TnrA] from DNA binding
  • Structure

  • [PDB|4R22] (the TnrA-DNA complex) [Pubmed|25691471]
  • [http://pdb.org/pdb/search/structidSearch.do?structureId=4s0r 4S0R] (the [protein|857EF1AC54DEA0690C01B7F8CEFFD16312C58F20|TnrA]-[protein|68F4E792B99F86AE9E8F06D2200E128937331F5D|GlnA] complex) [Pubmed|25691471]
  • [SW|Localization]

  • membrane-associated via [protein|796BD46066B1E6147048664FA78679B42FA9D628|NrgA]-[protein|EC7C2A0B5A9A30B2FAA0CF9EEB9830CE0E6F2219|NrgB] under conditions of poor nitrogen supply [Pubmed|21435182]
  • Expression and Regulation

    Operons

    genes
    [gene|857EF1AC54DEA0690C01B7F8CEFFD16312C58F20|tnrA]
    description
    (according to [http://dbtbs.hgc.jp/COG/prom/tnrA.html DBTBS]) null

    regulatory mechanism

  • [protein|857EF1AC54DEA0690C01B7F8CEFFD16312C58F20|TnrA]: activation, [PubMed|10671441,16547045], in [regulon|857EF1AC54DEA0690C01B7F8CEFFD16312C58F20|TnrA regulon]
  • [protein|641C4BDD9702804642E1753A9C779E80FABB3919|GlnR]: repression, in [regulon|641C4BDD9702804642E1753A9C779E80FABB3919|GlnR regulon]
  • regulation

  • expressed in the absence of good nitrogen sources (glutamine or ammonium) ([protein|search|TnrA]) [Pubmed|10671441,16547045]
  • view in new tab

    Biological materials

    Mutant

  • GP252 (in frame deletion), available in the [SW|Stülke] lab
  • BKE13310 (''tnrA''::''ermC'') (available at the [http://www.bgsc.org/ BGSC] and in [SW|Jörg Stülke]'s lab) [pubmed|28189581]
  • GP2262 (''tnrA''::''ermC'') (available in [SW|Jörg Stülke]'s lab)
  • 1A851 ( ''tnrA''::''erm''), [Pubmed|8799114], available at [http://pasture.asc.ohio-state.edu/BGSC/getdetail.cfm?bgscid=1A851&Search=1A851 BGSC]
  • 1A851 ( ''tnrA''::''erm''), [Pubmed|8799114], available at [http://pasture.asc.ohio-state.edu/BGSC/getdetail.cfm?bgscid=1A851&Search=1A851 BGSC]
  • Expression vector

  • for expression, purification in ''E. coli'' with N-terminal His-tag, in [SW|pWH844]: pGP171 available in [SW|Stülke] lab
  • pGP229 (N-terminal Strep-tag, for [SW|SPINE], expression in ''B. subtilis'', in [SW|pGP380]), available in [SW|Stülke] lab
  • Antibody

  • available in the [SW|Karl Forchhammer] lab
  • Labs working on this gene/protein

  • [SW|Susan Fisher], Boston, USA [http://www.bumc.bu.edu/microbiology/research/susan-h-fisher-phd/ homepage]
  • [SW|Maria Schumacher], Durham, NC, USA [http://www.dukeschumacherlab.com/index.html homepage]
  • References

    Reviews

  • 22625175,10231480,18086213
  • The [SW|TnrA regulon]

  • 12823818,25755103
  • Control of TnrA activity by the [SW|trigger enzymes|trigger enzyme] [protein|68F4E792B99F86AE9E8F06D2200E128937331F5D|GlnA]

  • 11719184,12139611,17085574,19233925,16885465,26635369
  • Other original publications

  • 12374841,9287005,12950915,10671441,16547045,8799114,15150225,11029411,17001076,15547269,2573733,8636055,16493705,6141156,18667567,21435182,23535029,23808168,25157083,25691471
  • [Pubmed|]