RegulonDB RegulonDB 10.8: Operon Form
   

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




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


Transcription unit          
Name: xylAB
Gene(s): xylB, xylA   Genome Browser M3D Gene expression COLOMBOS
Evidence: [BTEI] Boundaries of transcription experimentally identified
[ITC] Inferred through co-regulation
Reference(s): [1] Rosenfeld SA., et al., 1984
[2] Song S., et al., 1997
[3] Sumiya M., et al., 1995
Promoter
Name: xylAp
+1: 3730807
Distance from start of the gene: 42
Sequence: tcaatagcagtgtgaaataacataattgagcaactgaaagggagtgcccaatattacgacAtcatccatcacccgcggcat
Evidence: [TIM]
Reference(s): [2] Song S., et al., 1997
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 AraC-arabinose repressor xylAp 3730824 3730840 -25.0 taacataattGAGCAACTGAAAGGGAGtgcccaatat nd [BCE], [CV(GEA)], [GEA] [6]
proximal AraC-arabinose repressor xylAp 3730847 3730863 -48.0 attatctcaaTAGCAGTGTGAAATAACataattgagc nd [APIORCISFBSCS], [BCE], [CV(GEA)], [GEA] [6]
Type Transcription factor Function Promoter Binding Sites Growth Conditions Evidence (Confirmed, Strong, Weak) Reference(s)
LeftPos RightPos Central Rel-Pos Sequence
proximal CRP-cAMP activator xylAp 3730878 3730900 -81.5 attccattttATTTTGCGAGCGAGCGCACACTTgtgaattatc nd [AIBSCS], [APIORCISFBSCS], [CV(GEA)], [GEA] [2], [4], [5]
Type Transcription factor Function Promoter Binding Sites Growth Conditions Evidence (Confirmed, Strong, Weak) Reference(s)
LeftPos RightPos Central Rel-Pos Sequence
proximal XylR-xylose activator xylAp 3730840 3730857 -41.5 tcaatagcagTGTGAAATAACATAATTGagcaactgaa nd [APIORCISFBSCS], [BPP], [CV(GEA)], [CV(GEA)], [GEA] [2], [4]
proximal XylR-xylose activator xylAp 3730861 3730878 -62.5 agcgcacactTGTGAATTATCTCAATAGcagtgtgaaa nd [APIORCISFBSCS], [BPP], [CV(GEA)], [CV(GEA)], [GEA] [2], [4]


RNA cis-regulatory element    
Regulation, transcriptional elongation  
Attenuator type: Transcriptional
Strand: reverse
  Structure type Energy LeftPos RightPos Sequence (RNA-strand)
  terminator -17.1 3729385 3729420 cagtccgttgGCCCGGTTATCGGTAGCGATACCGGGCATTTTTTTaaggaacgat
  anti-terminator -11.6 3729407 3729450 tatctgttcgACAAATAACGGCTAACTGTGCAGTCCGTTGGCCCGGTTATCGGtagcgatacc
Notes: "The provided "Sequence" is that of the RNA strand, i.e. U's are shown instead of T's and regulators on the reverse strand will appear as the reverse complement of the sequence delimited by LeftPos-RigtPos"





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