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GadX DNA-binding transcriptional dual regulator

Synonyms: GadX
Summary:
The transcriptional activator GadX, for "Glutamic acid decarboxylase," is positively autoregulated and controls the transcription of pH-inducible genes, including the principal acid resistance system [6, 15, 16], is glutamate dependent (GAD), is also referred to as the GAD system, and its genes are involved in multidrug efflux [4, 5, 7, 8, 10]. In addition GadX also activates the transcription of the central activator involved in the acid response [12]. The physiological inducer is unknown. Richard et al. proposed that GadX can sense intracellular Na+ concentrations, but the mechanism is not known [17]. GadX is one of the regulators of the acid resistance system and is encoded by the unusual gadXW operon, which is located in the region called the acid fitness island [8].
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Transcription factor      
TF conformation(s):
Name Conformation Type TF-Effector Interaction Type Apo/Holo Conformation Evidence Confidence level (C: Confirmed, S: Strong, W: Weak) References
GadX Functional   nd nd nd
Evolutionary Family: AraC/XylS
TFBs length: 20
TFBs symmetry: asymmetric
Connectivity class: Local Regulator
Gene name: gadX
  Genome position: 3664986-3665810
  Length: 825 bp / 274 aa
Operon name: gadAXW
TU(s) encoding the TF:
Transcription unit        Promoter
gadAX
gadAp
gadAX
gadAp2
gadX
gadXp
gadXW
gadXp


Regulon       
Regulated gene(s) amtB, asnB, btuB, cadA, cadB, dctR, dtpA, gadA, gadB, gadC, gadE, gadF, gadW, gadX, gadY, glnK, glsA, hdeA, hdeB, hdeD, hns, lon, mdtE, mdtF, murI, rpoS, slp, speG, uspE, ybaT, ydeM, ydeN, yhiD, ynfB
Multifun term(s) of regulated gene(s) MultiFun Term (List of genes associated to the multifun term)
pH (9)
membrane (5)
Porters (Uni-, Sym- and Antiporters) (4)
Transcription related (4)
activator (3)
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Regulated operon(s) asnB, btuB-murI, cadBA, clpPX-lon, dtpA, gadAXW, gadBC, gadEF-mdtEF, gadY, glnK-amtB, glsA-ybaT, hdeAB-yhiD, hdeD, hns, nlpD-rpoS, slp-dctR, uspE, ydeNM, ynfB-speG
First gene in the operon(s) asnB, btuB, cadB, gadA, gadB, gadE, gadW, gadX, gadY, glnK, glsA, hdeA, hdeD, hns, lon, rpoS, slp, dtpA, uspE, ydeN, ynfB
Simple and complex regulons AdiY,ArcA,CRP,FNR,Fis,GadE-RcsB,GadW,GadX,H-NS,RcsB,TorR
AdiY,ArcA,CRP,FNR,Fis,GadE-RcsB,GadW,GadX,H-NS,RcsB,TorR,ppGpp
AdiY,CRP,Fis,FliZ,GadE,GadW,GadX,RcsB
AraC,GadX,NagC
ArcA,CRP,Fur,GadX,MqsA,ppGpp
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Simple and complex regulatory phrases Regulatory phrase (List of promoters regulated by the phrase)
[GadX,-](7)
[GadX,+](22)


Transcription factor regulation    


Transcription factor binding sites (TFBSs) arrangements
      

  Functional conformation Function Promoter Sigma factor Central Rel-Pos Distance to first Gene Genes Sequence
LeftPos RightPos Evidence Confidence level (C: Confirmed, S: Strong, W: Weak) References
  GadX activator asnBp nd nd nd asnB nd nd [EXP-IEP-GENE-EXPRESSION-ANALYSIS] W [1]
  GadX repressor btuBp Sigma70 74.5 -166.5 btuB, murI
cggtaaggaaAGGTGCGATGATTGCGTTATgcggacactg
4163463 4163482 [EXP-IEP-GENE-EXPRESSION-ANALYSIS], [COMP-HINF-SIMILAR-TO-CONSENSUS], [EXP-IDA-BINDING-OF-PURIFIED-PROTEINS] S [2], [2]
  GadX repressor btuBp Sigma70 105.5 -135.5 btuB, murI
cggacactgcCATTCGGTGGGAAGTCATCAtctcttagta
4163494 4163513 [EXP-IEP-GENE-EXPRESSION-ANALYSIS], [EXP-IDA-BINDING-OF-PURIFIED-PROTEINS] S [2], [2]
  GadX repressor btuBp Sigma70 134.5 -106.5 btuB, murI
atctcttagtATCTTAGATACCCCTCCAAGcccgaagacc
4163523 4163542 [EXP-IEP-GENE-EXPRESSION-ANALYSIS], [EXP-IDA-BINDING-OF-PURIFIED-PROTEINS] S [2], [2]
  GadX activator cadBp Sigma70 nd nd cadB, cadA nd nd [EXP-IEP-GENE-EXPRESSION-ANALYSIS] W [1]
  GadX activator gadAp Sigma70 -121.5 -148.5 gadA, gadX
tacgataataAAGTCTGTTTTTAATATTATcatgttaaat
3667719 3667738 [EXP-IEP-GENE-EXPRESSION-ANALYSIS], [COMP-HINF-SIMILAR-TO-CONSENSUS], [EXP-IDA-BINDING-OF-PURIFIED-PROTEINS] S [3], [4], [5], [5], [6], [6], [7], [8]
  GadX activator gadAp Sigma70 -100.5 -127.5 gadA, gadX
taatattatcATGTTAAATGTTTATATTATaaaaagtcgt
3667698 3667717 [EXP-IEP-GENE-EXPRESSION-ANALYSIS], [COMP-HINF-SIMILAR-TO-CONSENSUS], [EXP-IDA-BINDING-OF-PURIFIED-PROTEINS] S [3], [4], [5], [5], [6], [6], [7], [8]
  GadX activator gadAp Sigma70 -78.0 -105.0 gadA, gadX
tatattataaAAAGTCGTTTTTCTGCTTAGgattttgtta
3667676 3667695 [EXP-IEP-GENE-EXPRESSION-ANALYSIS], [EXP-IDA-BINDING-OF-PURIFIED-PROTEINS] S [3], [4], [5], [6], [7]
  GadX activator gadAp Sigma70 -57.5 -84.5 gadA, gadX
tctgcttaggATTTTGTTATTTAAATTAAGcctgtaatgc
3667655 3667674 [EXP-IEP-GENE-EXPRESSION-ANALYSIS], [EXP-IDA-BINDING-OF-PURIFIED-PROTEINS] S [3], [4], [5], [6], [7]
  GadX activator gadAp Sigma70 -31.5 -58.5 gadA, gadX
taagcctgtaATGCCTTGCTTCCATTGCGGataaatccta
3667629 3667648 [EXP-IEP-GENE-EXPRESSION-ANALYSIS], [EXP-IDA-BINDING-OF-PURIFIED-PROTEINS] S [3], [4], [5], [6], [6], [7]
  GadX activator gadAp Sigma70 -10.5 -37.5 gadA, gadX
ccattgcggaTAAATCCTACTTTTTTATTGccttcaaata
3667608 3667627 [EXP-IEP-GENE-EXPRESSION-ANALYSIS], [EXP-IDA-BINDING-OF-PURIFIED-PROTEINS] S [3], [4], [5], [6], [6], [7]
  GadX activator gadAp2 Sigma38 -121.5 -148.5 gadA, gadX
tacgataataAAGTCTGTTTTTAATATTATcatgttaaat
3667719 3667738 [EXP-IEP-GENE-EXPRESSION-ANALYSIS], [COMP-HINF-SIMILAR-TO-CONSENSUS], [EXP-IDA-BINDING-OF-PURIFIED-PROTEINS] S [3], [4], [5], [5], [6], [6], [7], [8]
  GadX activator gadAp2 Sigma38 -100.5 -127.5 gadA, gadX
taatattatcATGTTAAATGTTTATATTATaaaaagtcgt
3667698 3667717 [EXP-IEP-GENE-EXPRESSION-ANALYSIS], [COMP-HINF-SIMILAR-TO-CONSENSUS], [EXP-IDA-BINDING-OF-PURIFIED-PROTEINS] S [3], [4], [5], [5], [6], [6], [7], [8]
  GadX activator gadAp2 Sigma38 -78.0 -105.0 gadA, gadX
tatattataaAAAGTCGTTTTTCTGCTTAGgattttgtta
3667676 3667695 [EXP-IEP-GENE-EXPRESSION-ANALYSIS], [EXP-IDA-BINDING-OF-PURIFIED-PROTEINS] S [3], [4], [5], [6], [7]
  GadX activator gadAp2 Sigma38 -57.5 -84.5 gadA, gadX
tctgcttaggATTTTGTTATTTAAATTAAGcctgtaatgc
3667655 3667674 [EXP-IEP-GENE-EXPRESSION-ANALYSIS], [EXP-IDA-BINDING-OF-PURIFIED-PROTEINS] S [3], [4], [5], [6], [7]
  GadX activator gadAp2 Sigma38 -31.5 -58.5 gadA, gadX
taagcctgtaATGCCTTGCTTCCATTGCGGataaatccta
3667629 3667648 [EXP-IEP-GENE-EXPRESSION-ANALYSIS], [EXP-IDA-BINDING-OF-PURIFIED-PROTEINS] S [3], [4], [5], [6], [6], [7]
  GadX activator gadAp2 Sigma38 -10.5 -37.5 gadA, gadX
ccattgcggaTAAATCCTACTTTTTTATTGccttcaaata
3667608 3667627 [EXP-IEP-GENE-EXPRESSION-ANALYSIS], [EXP-IDA-BINDING-OF-PURIFIED-PROTEINS] S [3], [4], [5], [6], [6], [7]
  GadX activator gadBp Sigma70 -268.0 -295.0 gadB, gadC
ctatttttatGTAATAATTTTATAAATGCGttcaaaataa
1572330 1572349 [EXP-IEP-RNA-SEQ], [COMP-HINF], [EXP-CHIP-EXO-MANUAL] S [9], [9]
  GadX activator gadBp Sigma70 -231.5 -258.5 gadB, gadC
ataataatcaAGTACTAATAGTGATATTTTaaggtctgat
1572294 1572313 [EXP-IEP-GENE-EXPRESSION-ANALYSIS], [EXP-IEP-RNA-SEQ], [COMP-HINF], [COMP-HINF-SIMILAR-TO-CONSENSUS], [EXP-CHIP-EXO-MANUAL], [EXP-IDA-BINDING-OF-PURIFIED-PROTEINS] C [4], [4], [5], [5], [8], [9], [9]
  GadX activator gadBp Sigma70 -210.5 -237.5 gadB, gadC
tgatattttaAGGTCTGATTTTTACGTGATaattcaggag
1572273 1572292 [EXP-IEP-GENE-EXPRESSION-ANALYSIS], [COMP-HINF-SIMILAR-TO-CONSENSUS], [EXP-IDA-BINDING-OF-PURIFIED-PROTEINS] S [4], [5], [5], [8]
  GadX activator gadBp Sigma70 -184.0 -211.0 gadB, gadC
gataattcagGAGACACAGAATGCGCATAAaaataacagc
1572246 1572265 [EXP-IEP-RNA-SEQ], [COMP-HINF], [EXP-CHIP-EXO-MANUAL] S [9], [9]
  GadX activator gadBp Sigma70 -119.5 -146.5 gadB, gadC
gaatttcataTTGTATTGTTTTTCAATGAAaaaatattat
1572182 1572201 [EXP-IEP-GENE-EXPRESSION-ANALYSIS], [EXP-IDA-BINDING-OF-PURIFIED-PROTEINS] S [3], [4], [5], [5], [6], [6], [7]
  GadX activator gadBp Sigma70 -98.5 -125.5 gadB, gadC
ttcaatgaaaAAATATTATTCGCGTAATATctcacgataa
1572161 1572180 [EXP-IEP-GENE-EXPRESSION-ANALYSIS], [EXP-IDA-BINDING-OF-PURIFIED-PROTEINS] S [3], [4], [5], [5], [6], [6], [7]
  GadX activator gadBp Sigma70 -39.5 -66.5 gadB, gadC
atttaaacacGAGTCCTTTGCACTTGCTTActttatcgat
1572102 1572121 [EXP-IEP-GENE-EXPRESSION-ANALYSIS], [EXP-IDA-BINDING-OF-PURIFIED-PROTEINS] S [3], [4], [5], [5], [6], [6], [7]
  GadX activator gadBp Sigma70 -17.5 -44.5 gadB, gadC
cttgcttactTTATCGATAAATCCTACTTTtttaatgcga
1572080 1572099 [EXP-IEP-GENE-EXPRESSION-ANALYSIS], [EXP-IDA-BINDING-OF-PURIFIED-PROTEINS] S [3], [4], [5], [6], [7]
  GadX activator gadBp2 Sigma38 -268.0 -295.0 gadB, gadC
ctatttttatGTAATAATTTTATAAATGCGttcaaaataa
1572330 1572349 [EXP-IEP-RNA-SEQ], [COMP-HINF], [EXP-CHIP-EXO-MANUAL] S [9], [9]
  GadX activator gadBp2 Sigma38 -231.5 -258.5 gadB, gadC
ataataatcaAGTACTAATAGTGATATTTTaaggtctgat
1572294 1572313 [EXP-IEP-GENE-EXPRESSION-ANALYSIS], [EXP-IEP-RNA-SEQ], [COMP-HINF], [COMP-HINF-SIMILAR-TO-CONSENSUS], [EXP-CHIP-EXO-MANUAL], [EXP-IDA-BINDING-OF-PURIFIED-PROTEINS] C [4], [4], [5], [5], [8], [9], [9]
  GadX activator gadBp2 Sigma38 -210.5 -237.5 gadB, gadC
tgatattttaAGGTCTGATTTTTACGTGATaattcaggag
1572273 1572292 [EXP-IEP-GENE-EXPRESSION-ANALYSIS], [COMP-HINF-SIMILAR-TO-CONSENSUS], [EXP-IDA-BINDING-OF-PURIFIED-PROTEINS] S [4], [5], [5], [8]
  GadX activator gadBp2 Sigma38 -184.0 -211.0 gadB, gadC
gataattcagGAGACACAGAATGCGCATAAaaataacagc
1572246 1572265 [EXP-IEP-RNA-SEQ], [COMP-HINF], [EXP-CHIP-EXO-MANUAL] S [9], [9]
  GadX activator gadBp2 Sigma38 -119.5 -146.5 gadB, gadC
gaatttcataTTGTATTGTTTTTCAATGAAaaaatattat
1572182 1572201 [EXP-IEP-GENE-EXPRESSION-ANALYSIS], [EXP-IDA-BINDING-OF-PURIFIED-PROTEINS] S [3], [4], [5], [5], [6], [6], [7]
  GadX activator gadBp2 Sigma38 -98.5 -125.5 gadB, gadC
ttcaatgaaaAAATATTATTCGCGTAATATctcacgataa
1572161 1572180 [EXP-IEP-GENE-EXPRESSION-ANALYSIS], [EXP-IDA-BINDING-OF-PURIFIED-PROTEINS] S [3], [4], [5], [5], [6], [6], [7]
  GadX activator gadBp2 Sigma38 -39.5 -66.5 gadB, gadC
atttaaacacGAGTCCTTTGCACTTGCTTActttatcgat
1572102 1572121 [EXP-IEP-GENE-EXPRESSION-ANALYSIS], [EXP-IDA-BINDING-OF-PURIFIED-PROTEINS] S [3], [4], [5], [5], [6], [6], [7]
  GadX activator gadBp2 Sigma38 -17.5 -44.5 gadB, gadC
cttgcttactTTATCGATAAATCCTACTTTtttaatgcga
1572080 1572099 [EXP-IEP-GENE-EXPRESSION-ANALYSIS], [EXP-IDA-BINDING-OF-PURIFIED-PROTEINS] S [3], [4], [5], [6], [7]
  GadX activator gadEp2 Sigma38 -595.5 -616.5 gadE, gadF, mdtE, mdtF
ctatggcaaaTTAGCCATTTCAAACATTATcatggctgat
3657740 3657759 [EXP-IEP-GENE-EXPRESSION-ANALYSIS], [COMP-HINF-SIMILAR-TO-CONSENSUS] W [7], [8], [8], [10], [11], [12]
  GadX activator gadEp2 Sigma38 -574.5 -595.5 gadE, gadF, mdtE, mdtF
aaacattatcATGGCTGATATTTTCCGTAGtcaggtttaa
3657761 3657780 [EXP-IEP-GENE-EXPRESSION-ANALYSIS], [COMP-HINF-SIMILAR-TO-CONSENSUS] W [7], [8], [8], [10], [11], [12]
  GadX activator gadEp3 Sigma70 -50.5 -616.5 gadE, gadF
ctatggcaaaTTAGCCATTTCAAACATTATcatggctgat
3657740 3657759 [COMP-AINF-SIMILAR-TO-CONSENSUS], [EXP-IDA-BINDING-OF-PURIFIED-PROTEINS], [EXP-IEP-GENE-EXPRESSION-ANALYSIS], [COMP-HINF-SIMILAR-TO-CONSENSUS] S [7], [8], [8], [10], [11], [12]
  GadX activator gadEp3 Sigma70 -29.5 -595.5 gadE, gadF
aaacattatcATGGCTGATATTTTCCGTAGtcaggtttaa
3657761 3657780 [COMP-HINF-SIMILAR-TO-CONSENSUS], [EXP-IDA-BINDING-OF-PURIFIED-PROTEINS], [EXP-IEP-GENE-EXPRESSION-ANALYSIS], [COMP-HINF-SIMILAR-TO-CONSENSUS] S [7], [8], [8], [10], [11], [12]
  GadX repressor gadWp2 nd -96.5 -259.5 gadW
tccctgttggCACGGGAAACTTTGTGCTCTcagtaagtta
3664868 3664887 [EXP-IEP-RNA-SEQ], [COMP-HINF], [EXP-CHIP-EXO-MANUAL] S [9], [9]
  GadX repressor gadWp2 nd -68.5 -231.5 gadW
ctcagtaagtTAAATATAACTTTTACTGGAaataagatca
3664840 3664859 [EXP-IEP-RNA-SEQ], [COMP-HINF], [EXP-CHIP-EXO-MANUAL] S [9], [9]
  GadX repressor gadWp2 nd -53.5 -216.5 gadW
ataacttttaCTGGAAATAAGATCAGCCATttttttataa
3664825 3664844 [EXP-IEP-GENE-EXPRESSION-ANALYSIS] W [8]
  GadX repressor gadWp2 nd -32.5 -195.5 gadW
atcagccattTTTTTATAAACATAAGCTATacgctgtgcg
3664804 3664823 [EXP-IEP-GENE-EXPRESSION-ANALYSIS] W [8], [8]
  GadX activator gadXp Sigma38 nd nd gadX, gadW nd nd [EXP-IEP-GENE-EXPRESSION-ANALYSIS] W [1], [4], [8]
  GadX activator gadYp Sigma38 -50.5 -50.5 gadY
cgcacagcgtATAGCTTATGTTTATAAAAAaatggctgat
3664804 3664823 [EXP-IEP-GENE-EXPRESSION-ANALYSIS] W [8], [8]
  GadX activator gadYp Sigma38 -29.5 -29.5 gadY
ttataaaaaaATGGCTGATCTTATTTCCAGtaaaagttat
3664825 3664844 [EXP-IEP-GENE-EXPRESSION-ANALYSIS] W [8]
  GadX activator glnKp Sigma54 nd nd glnK, amtB nd nd [EXP-IEP-GENE-EXPRESSION-ANALYSIS] W [1]
  GadX activator glsAp Sigma38 11.5 -57.5 glsA, ybaT
gttaaatcagGATGCCTGAAAATCGGCACCggggtgagga
511574 511593 [EXP-IEP-GENE-EXPRESSION-ANALYSIS], [EXP-IEP-RNA-SEQ], [COMP-HINF], [EXP-CHIP-EXO-MANUAL] S [1], [7], [9], [9]
  GadX activator hdeAp Sigma70 -126.5 -177.5 hdeA, hdeB, yhiD
gcgtctaagaATGCAGTCGATTTAATAAAAatttcctaat
3656908 3656927 [EXP-IEP-GENE-EXPRESSION-ANALYSIS], [COMP-AINF-SIMILAR-TO-CONSENSUS] W [7], [13], [13]
  GadX repressor hdeAp Sigma70 -126.5 -177.5 hdeA, hdeB, yhiD
gcgtctaagaATGCAGTCGATTTAATAAAAatttcctaat
3656908 3656927 [EXP-IEP-GENE-EXPRESSION-ANALYSIS], [COMP-AINF-SIMILAR-TO-CONSENSUS] W [7], [13], [13]
  GadX activator hdeAp Sigma70 -74.5 -125.5 hdeA, hdeB, yhiD
tgcatctgtaACTCATTGTATTGAAATAAAaatatctgat
3656856 3656875 [EXP-IEP-GENE-EXPRESSION-ANALYSIS], [COMP-AINF-SIMILAR-TO-CONSENSUS], [COMP-HINF-SIMILAR-TO-CONSENSUS], [EXP-IDA-BINDING-OF-PURIFIED-PROTEINS] S [1], [7], [8], [8], [13], [13]
  GadX repressor hdeAp Sigma70 -74.5 -125.5 hdeA, hdeB, yhiD
tgcatctgtaACTCATTGTATTGAAATAAAaatatctgat
3656856 3656875 [EXP-IEP-GENE-EXPRESSION-ANALYSIS], [COMP-AINF-SIMILAR-TO-CONSENSUS], [COMP-HINF-SIMILAR-TO-CONSENSUS], [EXP-IDA-BINDING-OF-PURIFIED-PROTEINS] S [1], [7], [8], [8], [13], [13]
  GadX activator hdeAp Sigma70 -53.5 -104.5 hdeA, hdeB, yhiD
tgaaataaaaATATCTGATTTTGATATTTTccatcaacat
3656835 3656854 [EXP-IEP-GENE-EXPRESSION-ANALYSIS], [COMP-HINF-SIMILAR-TO-CONSENSUS], [EXP-IDA-BINDING-OF-PURIFIED-PROTEINS] S [1], [7], [8], [8], [13], [13]
  GadX repressor hdeAp Sigma70 -53.5 -104.5 hdeA, hdeB, yhiD
tgaaataaaaATATCTGATTTTGATATTTTccatcaacat
3656835 3656854 [EXP-IEP-GENE-EXPRESSION-ANALYSIS], [COMP-HINF-SIMILAR-TO-CONSENSUS], [EXP-IDA-BINDING-OF-PURIFIED-PROTEINS] S [1], [7], [8], [8], [13], [13]
  GadX activator hdeAp2 Sigma38 -126.5 -177.5 hdeA, hdeB, yhiD
gcgtctaagaATGCAGTCGATTTAATAAAAatttcctaat
3656908 3656927 [EXP-IEP-GENE-EXPRESSION-ANALYSIS], [COMP-AINF-SIMILAR-TO-CONSENSUS] W [7], [13], [13]
  GadX repressor hdeAp2 Sigma38 -126.5 -177.5 hdeA, hdeB, yhiD
gcgtctaagaATGCAGTCGATTTAATAAAAatttcctaat
3656908 3656927 [EXP-IEP-GENE-EXPRESSION-ANALYSIS], [COMP-AINF-SIMILAR-TO-CONSENSUS] W [7], [13], [13]
  GadX activator hdeAp2 Sigma38 -74.5 -125.5 hdeA, hdeB, yhiD
tgcatctgtaACTCATTGTATTGAAATAAAaatatctgat
3656856 3656875 [EXP-IEP-GENE-EXPRESSION-ANALYSIS], [COMP-AINF-SIMILAR-TO-CONSENSUS], [COMP-HINF-SIMILAR-TO-CONSENSUS], [EXP-IDA-BINDING-OF-PURIFIED-PROTEINS] S [1], [7], [8], [8], [13], [13]
  GadX repressor hdeAp2 Sigma38 -74.5 -125.5 hdeA, hdeB, yhiD
tgcatctgtaACTCATTGTATTGAAATAAAaatatctgat
3656856 3656875 [EXP-IEP-GENE-EXPRESSION-ANALYSIS], [COMP-AINF-SIMILAR-TO-CONSENSUS], [COMP-HINF-SIMILAR-TO-CONSENSUS], [EXP-IDA-BINDING-OF-PURIFIED-PROTEINS] S [1], [7], [8], [8], [13], [13]
  GadX activator hdeAp2 Sigma38 -53.5 -104.5 hdeA, hdeB, yhiD
tgaaataaaaATATCTGATTTTGATATTTTccatcaacat
3656835 3656854 [EXP-IEP-GENE-EXPRESSION-ANALYSIS], [COMP-HINF-SIMILAR-TO-CONSENSUS], [EXP-IDA-BINDING-OF-PURIFIED-PROTEINS] S [1], [7], [8], [8], [13], [13]
  GadX repressor hdeAp2 Sigma38 -53.5 -104.5 hdeA, hdeB, yhiD
tgaaataaaaATATCTGATTTTGATATTTTccatcaacat
3656835 3656854 [EXP-IEP-GENE-EXPRESSION-ANALYSIS], [COMP-HINF-SIMILAR-TO-CONSENSUS], [EXP-IDA-BINDING-OF-PURIFIED-PROTEINS] S [1], [7], [8], [8], [13], [13]
  GadX activator hdeDp Sigma70 -115.5 -150.5 hdeD
atgttgatggAAAATATCAAAATCAGATATttttatttca
3656835 3656854 [COMP-HINF-SIMILAR-TO-CONSENSUS], [EXP-IDA-BINDING-OF-PURIFIED-PROTEINS], [EXP-IEP-GENE-EXPRESSION-ANALYSIS], [COMP-HINF-SIMILAR-TO-CONSENSUS], [EXP-IDA-BINDING-OF-PURIFIED-PROTEINS] S [1], [7], [8], [8], [13], [13]
  GadX activator hdeDp Sigma70 -94.5 -129.5 hdeD
atcagatattTTTATTTCAATACAATGAGTtacagatgca
3656856 3656875 [COMP-AINF-SIMILAR-TO-CONSENSUS], [EXP-IDA-BINDING-OF-PURIFIED-PROTEINS], [EXP-IEP-GENE-EXPRESSION-ANALYSIS], [COMP-AINF-SIMILAR-TO-CONSENSUS], [COMP-HINF-SIMILAR-TO-CONSENSUS], [EXP-IDA-BINDING-OF-PURIFIED-PROTEINS] S [1], [7], [8], [8], [13], [13]
  GadX activator hdeDp2 Sigma38 -115.5 -150.5 hdeD
atgttgatggAAAATATCAAAATCAGATATttttatttca
3656835 3656854 [COMP-HINF-SIMILAR-TO-CONSENSUS], [EXP-IDA-BINDING-OF-PURIFIED-PROTEINS], [EXP-IEP-GENE-EXPRESSION-ANALYSIS], [COMP-HINF-SIMILAR-TO-CONSENSUS], [EXP-IDA-BINDING-OF-PURIFIED-PROTEINS] S [1], [7], [8], [8], [13], [13]
  GadX activator hdeDp2 Sigma38 -94.5 -129.5 hdeD
atcagatattTTTATTTCAATACAATGAGTtacagatgca
3656856 3656875 [COMP-AINF-SIMILAR-TO-CONSENSUS], [EXP-IDA-BINDING-OF-PURIFIED-PROTEINS], [EXP-IEP-GENE-EXPRESSION-ANALYSIS], [COMP-AINF-SIMILAR-TO-CONSENSUS], [COMP-HINF-SIMILAR-TO-CONSENSUS], [EXP-IDA-BINDING-OF-PURIFIED-PROTEINS] S [1], [7], [8], [8], [13], [13]
  GadX activator hnsp Sigma70 nd nd hns nd nd [EXP-IEP-GENE-EXPRESSION-ANALYSIS] W [1]
  GadX activator lonp Sigma70 nd nd lon nd nd [EXP-IEP-GENE-EXPRESSION-ANALYSIS] W [1]
  GadX activator lonp2 Sigma32 nd nd lon nd nd [EXP-IEP-GENE-EXPRESSION-ANALYSIS] W [1]
  GadX activator rpoSp Sigma70 nd nd rpoS nd nd [EXP-IEP-GENE-EXPRESSION-ANALYSIS] W [1]
  GadX activator slpp Sigma70 -81.5 -106.5 slp, dctR
ctaaacagaaAGGATATAAACATCAGACAGgtttacgtta
3653845 3653864 [EXP-IEP-GENE-EXPRESSION-ANALYSIS], [EXP-IEP-RNA-SEQ], [COMP-HINF], [COMP-HINF-SIMILAR-TO-CONSENSUS], [EXP-CHIP-EXO-MANUAL], [EXP-IDA-BINDING-OF-PURIFIED-PROTEINS] C [7], [8], [8], [9], [9]
  GadX activator slpp Sigma70 -70.5 -95.5 slp, dctR
ggatataaacATCAGACAGGTTTACGTTACtatcaggcat
3653856 3653875 [EXP-IEP-RNA-SEQ], [COMP-HINF], [EXP-CHIP-EXO-MANUAL] S [9], [9]
  GadX activator slpp Sigma70 -60.5 -85.5 slp, dctR
atcagacaggTTTACGTTACTATCAGGCATatcacctcag
3653866 3653885 [EXP-IEP-GENE-EXPRESSION-ANALYSIS], [COMP-AINF-SIMILAR-TO-CONSENSUS], [EXP-IDA-BINDING-OF-PURIFIED-PROTEINS] S [7], [7], [8], [8]
  GadX activator slpp Sigma70 -3.0 -28.0 slp, dctR
aaagaaatatCTATTATGGTTTTAATATTTgttgataagg
3653923 3653942 [EXP-IEP-RNA-SEQ], [COMP-HINF], [EXP-CHIP-EXO-MANUAL] S [9], [9]
  GadX activator slpp Sigma70 17.0 -9.0 slp, dctR
ttttaatattTGTTGATAAGGATAGTAACAtgaacatgac
3653942 3653961 [EXP-IEP-RNA-SEQ], [COMP-HINF], [EXP-CHIP-EXO-MANUAL] S [9], [9]
  GadX repressor tppBp Sigma70 -151.0 -249.0 dtpA
cgttaagccaTCACCCCCCTCTCAGTGCAGtgaaaaaatc
1712510 1712529 [EXP-IEP-RNA-SEQ], [COMP-HINF], [EXP-CHIP-EXO-MANUAL] S [9], [9]
  GadX activator uspEp nd nd nd uspE nd nd [EXP-IEP-GENE-EXPRESSION-ANALYSIS] W [14]
  GadX repressor ydeNp Sigma70 -233.5 -263.5 ydeN, ydeM
cacatatttaTGCACTTGCATAACCTGTTGcatgattatt
1582778 1582797 [EXP-IEP-RNA-SEQ], [COMP-HINF], [EXP-CHIP-EXO-MANUAL] S [9], [9]
  GadX repressor ydeNp Sigma70 -69.0 -99.0 ydeN, ydeM
tttttcccttTTTTTAGCTAAATCTGCTATctctttatgt
1582613 1582632 [EXP-IEP-RNA-SEQ], [COMP-HINF], [EXP-CHIP-EXO-MANUAL] S [9], [9]
  GadX repressor ynfBp Sigma38 -94.5 -193.5 ynfB, speG
ttaaccacaaCCAGGGCAGAAAGCATCCAAtaatttcaca
1655605 1655624 [EXP-IEP-RNA-SEQ], [COMP-HINF], [EXP-CHIP-EXO-MANUAL] S [9], [9]


Alignment and PSSM for GadX TFBSs    

Aligned TFBS of GadX   
  Sequence
  AAATATCAAAATCAGATATTTT
  TCACGTAAAAATCAGACCTTAA
  TAATATTAAAAACAGACTTTAT
  TACGGAAAATATCAGCCATGAT
  GGATATAAACATCAGACAGGTT
  TAACGCAATCATCGCACCTTTC
  AAATATTAAAACCATAATAGAT
  TAATATAAACATTTAACATGAT
  TCATTGAAAAACAATACAATAT
  TTACGTTACTATCAGGCATATC
  TTATCGATAAATCCTACTTTTT
  TTTTATAAACATAAGCTATACG
  TGGAAATAAGATCAGCCATTTT
  AATTAGCCATTTCAAACATTAT
  TACTATCCTTATCAACAAATAT
  CTAAGCAGAAAAACGACTTTTT
  ATTTATAAAATTATTACATAAA
  CAATAAAAAAGTAGGATTTATC
  TATTACGCGAATAATATTTTTT
  TGCAGTCGATTTAATAAAAATT
  CGCAATGGAAGCAAGGCATTAC
  TTTTAGCTAAATCTGCTATCTC
  TTATTTCAATACAATGAGTTAC
  CAGGGCAGAAAGCATCCAATAA
  TAATTTAAATAACAAAATCCTA
  TTATGCACTTGCATAACCTGTT
  TCAAGTACTAATAGTGATATTT
  AGATGATGACTTCCCACCGAAT
  AGACACAGAATGCGCATAAAAA
  TATCTTAGATACCCCTCCAAGC
  TACTGAGAGCACAAAGTTTCCC
  TAAAGTAAGCAAGTGCAAAGGA
  ATGCCTGAAAATCGGCACCGGG
  AGCCATCACCCCCCTCTCAGTG

Position weight matrix (PWM). GadX matrix-quality result   
A	8	15	19	6	16	5	18	20	25	16	25	4	12	19	6	19	8	17	10	8	14	6
C	4	3	6	7	2	6	7	5	2	8	1	8	20	5	4	9	18	7	2	3	2	8
G	1	7	3	2	12	4	4	7	3	1	3	2	1	5	14	5	0	1	2	8	3	3
T	21	9	6	19	4	19	5	2	4	9	5	20	1	5	10	1	8	9	20	15	15	17

Consensus   
;	consensus.strict             	taatgtaaaaatCagacatttt
;	consensus.strict.rc          	AAAATGTCTGATTTTTACATTA
;	consensus.IUPAC              	tratrtaramayMagmcawkwy
;	consensus.IUPAC.rc           	RWMWTGKCTKRTKTYTAYATYA
;	consensus.regexp             	t[ag]at[ag]ta[ag]a[ac]a[ct][AC]ag[ac]ca[at][gt][at][ct]
;	consensus.regexp.rc          	[AG][AT][AC][AT]TG[GT]CT[GT][AG]T[GT]T[CT]TA[CT]AT[CT]A

PWM logo   


 


Evolutionary conservation of regulatory elements    
     Note: Evolutionary conservation of regulatory interactions and promoters is limited to gammaproteobacteria.
TF-target gene evolutionary conservation
Promoter-target gene evolutionary conservation




Reference(s)    

 [1] Hommais F., Krin E., Coppee JY., Lacroix C., Yeramian E., Danchin A., Bertin P., 2004, GadE (YhiE): a novel activator involved in the response to acid environment in Escherichia coli., Microbiology 150(Pt 1):61-72

 [2] Lei GS., Syu WJ., Liang PH., Chak KF., Hu WS., Hu ST., 2011, Repression of btuB gene transcription in Escherichia coli by the GadX protein., BMC Microbiol 11(1):33

 [3] Giangrossi M., Zattoni S., Tramonti A., De Biase D., Falconi M., 2005, Antagonistic role of H-NS and GadX in the regulation of the glutamate decarboxylase-dependent acid resistance system in Escherichia coli., J Biol Chem 280(22):21498-505

 [4] Ma Z., Richard H., Tucker DL., Conway T., Foster JW., 2002, Collaborative regulation of Escherichia coli glutamate-dependent acid resistance by two AraC-like regulators, GadX and GadW (YhiW)., J Bacteriol 184(24):7001-12

 [5] Tramonti A., De Canio M., Delany I., Scarlato V., De Biase D., 2006, Mechanisms of transcription activation exerted by GadX and GadW at the gadA and gadBC gene promoters of the glutamate-based acid resistance system in Escherichia coli., J Bacteriol 188(23):8118-27

 [6] Tramonti A., Visca P., De Canio M., Falconi M., De Biase D., 2002, Functional characterization and regulation of gadX, a gene encoding an AraC/XylS-like transcriptional activator of the Escherichia coli glutamic acid decarboxylase system., J Bacteriol 184(10):2603-13

 [7] Tucker DL., Tucker N., Ma Z., Foster JW., Miranda RL., Cohen PS., Conway T., 2003, Genes of the GadX-GadW regulon in Escherichia coli., J Bacteriol 185(10):3190-201

 [8] Tramonti A., De Canio M., De Biase D., 2008, GadX/GadW-dependent regulation of the Escherichia coli acid fitness island: transcriptional control at the gadY-gadW divergent promoters and identification of four novel 42 bp GadX/GadW-specific binding sites., Mol Microbiol 70(4):965-82

 [9] Seo SW., Kim D., O'Brien EJ., Szubin R., Palsson BO., 2015, Decoding genome-wide GadEWX-transcriptional regulatory networks reveals multifaceted cellular responses to acid stress in Escherichia coli., Nat Commun 6:7970

 [10] Nishino K., Senda Y., Yamaguchi A., 2008, The AraC-family regulator GadX enhances multidrug resistance in Escherichia coli by activating expression of mdtEF multidrug efflux genes., J Infect Chemother 14(1):23-9

 [11] Sayed AK., Foster JW., 2009, A 750 bp sensory integration region directs global control of the Escherichia coli GadE acid resistance regulator., Mol Microbiol 71(6):1435-50

 [12] Sayed AK., Odom C., Foster JW., 2007, The Escherichia coli AraC-family regulators GadX and GadW activate gadE, the central activator of glutamate-dependent acid resistance., Microbiology 153(Pt 8):2584-92

 [13] Ruiz C., McMurry LM., Levy SB., 2008, Role of the multidrug resistance regulator MarA in global regulation of the hdeAB acid resistance operon in Escherichia coli., J Bacteriol 190(4):1290-7

 [14] Hodges AP., Dai D., Xiang Z., Woolf P., Xi C., He Y., 2010, Bayesian Network Expansion Identifies New ROS and Biofilm Regulators., PLoS One 5(3):e9513

 [15] Tramonti A, De Canio M, Bossa F, De Biase D, 2003, Stability and oligomerization of recombinant GadX, a transcriptional activator of the Escherichia coli glutamate decarboxylase system., Biochim Biophys Acta, 1647(1-2):376 10.1016/s1570-9639(03)00098-0

 [16] Shin S, Castanie-Cornet MP, Foster JW, Crawford JA, Brinkley C, Kaper JB, 2001, An activator of glutamate decarboxylase genes regulates the expression of enteropathogenic Escherichia coli virulence genes through control of the plasmid-encoded regulator, Per., Mol Microbiol, 41(5):1133 10.1046/j.1365-2958.2001.02570.x

 [17] Richard H, Foster JW, 2007, Sodium regulates Escherichia coli acid resistance, and influences GadX- and GadW-dependent activation of gadE., Microbiology (Reading), 153(Pt 9):3154 10.1099/mic.0.2007/007575-0

 [18] Gallegos MT., Schleif R., Bairoch A., Hofmann K., Ramos JL., 1997, Arac/XylS family of transcriptional regulators., Microbiol Mol Biol Rev 61(4):393-410

 [19] Martin RG, Rosner JL, 2001, The AraC transcriptional activators., Curr Opin Microbiol, 4(2):132 10.1016/s1369-5274(00)00178-8

 [20] Opdyke JA., Kang JG., Storz G., 2004, GadY, a small-RNA regulator of acid response genes in Escherichia coli., J Bacteriol 186(20):6698-705

 [21] Gallegos MT, Michán C, Ramos JL, 1993, The XylS/AraC family of regulators., Nucleic Acids Res, 21(4):807 10.1093/nar/21.4.807

 [22] Yamanaka Y, Aizawa SI, Yamamoto K, 2022, The hdeD Gene Represses the Expression of Flagellum Biosynthesis via LrhA in Escherichia coli K-12., J Bacteriol, 204(1):e0042021 10.1128/JB.00420-21

 [23] Hong SH, Wang X, O'Connor HF, Benedik MJ, Wood TK, 2012, Bacterial persistence increases as environmental fitness decreases., Microb Biotechnol, 5(4):509 10.1111/j.1751-7915.2011.00327.x



RegulonDB