RegulonDB RegulonDB 10.8: Operon Form
   

acrD operon and associated TUs in Escherichia coli K-12 genome




Operon      
Name: acrD
This page displays every known transcription unit of this operon and their known regulation.


Transcription unit          
Name: acrD
Gene(s): acrD   Genome Browser M3D Gene expression COLOMBOS
Note(s): During an experiment using increasing concentrations of tetracycline, the transcription of the acrD gene was induced in low concentrations (1.5 and 4 mg/L), but this induction decreased in high concentrations (10 mg/L) 17426813 acrD expression is increased at least 5-fold by indole Hirakawa H,2005.
Promoter
Name: acrDp
+1: 2587475
Sigma Factor: Sigma70 Sigmulon
Distance from start of the gene: 120
Sequence: aaagtcagttaatgtaatgcctcctactgaccaaagaatacttgcacttaaggttcagtaTaaaagggcatgataatttac
                           -35                   -10        +1                   
Evidence: [AIPP]
Reference(s): [1] Huerta AM., et al., 2003
TF binding sites (TFBSs)
Type Transcription factor Function Promoter Binding Sites Growth Conditions Evidence (Confirmed, Strong, Weak) Reference(s)
LeftPos RightPos Central Rel-Pos Sequence
proximal EvgA-Phosphorylated1 activator acrDp 2587435 2587453 -31.5 aatgtaatgcCTCCTACTGACCAAAGAATacttgcactt nd [AIBSCS], [CV(GEA)], [GEA] [2]
Note(s): 1Through of overexpression analysis, BaeR and EvgA were shown to mediated βB-lactam as a result of induction of the multidrug exporter acrD gene expression Hirakawa H,2003.1Through of overexpression analysis, BaeR and EvgA were shown to mediated βB-lactam as a result of induction of the multidrug exporter acrD gene expression Hirakawa H,2003.


Transcription unit          
Name: acrD
Gene(s): acrD   Genome Browser M3D Gene expression COLOMBOS
Note(s): During an experiment using increasing concentrations of tetracycline, the transcription of the acrD gene was induced in low concentrations (1.5 and 4 mg/L), but this induction decreased in high concentrations (10 mg/L) 17426813 acrD expression is increased at least 5-fold by indole Hirakawa H,2005.
Promoter
Name: acrDp2
+1: 2587550
Sigma Factor: Sigma54 Sigmulon
Distance from start of the gene: 45
Sequence: atttacattaactcctttttttctccacgattggctcgtaccttgccgctacagtgaagcAagtcaagcctacaacgatac
                                -24         -12             +1                   
Note(s): This promoter was identified by microarray assays with a mutant σ54 strain and a σ54-overexpressing strain, and by σ54-related promoter element identification Zhao K,2010
We assigned a putative transcription start site to this promoter based on the observation that the majority of the σ54-dependent promoters, whose transcription start sites were determined experimentally, present a distance of 11 nucleotides between the transcription start site and the -12 box Barrios H,1999.
Evidence: [HIPP]
[IEP]
Reference(s): [3] Zhao K., et al., 2010
TF binding sites (TFBSs)
Type Transcription factor Function Promoter Binding Sites Growth Conditions Evidence (Confirmed, Strong, Weak) Reference(s)
LeftPos RightPos Central Rel-Pos Sequence
proximal BaeR-Phosphorylated activator acrDp2 2587504 2587523 -36.5 acattaactcCTTTTTTTCTCCACGATTGGctcgtacctt nd [BPP], [CV(GEA)], [CV(GEA)], [GEA], [IC] [4]
Type Transcription factor Function Promoter Binding Sites Growth Conditions Evidence (Confirmed, Strong, Weak) Reference(s)
LeftPos RightPos Central Rel-Pos Sequence
remote CpxR-Phosphorylated activator acrDp2 2587414 2587432 -127.5 ggagggtgagGAAAGTCAGTTAATGTAATgcctcctact nd [BPP], [CV(GEA)], [CV(GEA)], [GEA], [IC] [4]
remote CpxR-Phosphorylated activator acrDp2 2587446 2587459 -98.0 tcctactgacCAAAGAATACTTGCacttaaggtt nd [BPP], [IC] [4]
proximal CpxR-Phosphorylated activator acrDp2 2587476 2587493 -66.0 ggttcagtatAAAAGGGCATGATAATTTacattaactc nd [BPP], [CV(GEA)], [CV(GEA)], [GEA], [IC] [4]





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