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Gene name brnQ
Synonyms yrdJ
Essential no
Product branched-chain amino acid transporter
Function uptake of branched-chain amino acids
Metabolic function and regulation of this protein in SubtiPathways:
Lipid synthesis, Ile, Leu, Val
MW, pI 46 kDa, 9.777
Gene length, protein length 1320 bp, 440 aa
Immediate neighbours yrdK, azlD
Get the DNA and protein sequences
(Barbe et al., 2009)
Genetic context
BrnQ context.gif
This image was kindly provided by SubtiList

The gene

Basic information

  • Locus tag: BSU26690

Phenotypes of a mutant

Database entries

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

Additional information

The protein

Basic information/ Evolution

  • Catalyzed reaction/ biological activity:
  • Protein family: branched chain amino acid transporter family (according to Swiss-Prot)
  • Paralogous protein(s): BraB

Extended information on the protein

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

Database entries

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

Additional information

Expression and regulation

  • Regulatory mechanism: AzlB: transcriptional repression PubMed
  • Additional information:

Biological materials

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

Labs working on this gene/protein

Your additional remarks


B R Belitsky, M C Gustafsson, A L Sonenshein, C Von Wachenfeldt
An lrp-like gene of Bacillus subtilis involved in branched-chain amino acid transport.
J Bacteriol: 1997, 179(17);5448-57
[PubMed:9287000] [] [DOI] (P p)