RegulonDB RegulonDB 10.10: Operon Form

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

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

Transcription unit          
Name: ecnB
Gene(s): ecnB   Genome Browser M3D Gene expression COLOMBOS
Evidence: [BTEI] Boundaries of transcription experimentally identified
[LTED] Length of transcript experimentally determined
Reference(s): [1] Bishop RE., et al., 1998
Name: ecnBp
+1: 4376509
Sigma Factor: Sigma38 Sigmulon
Distance from start of the gene: 44
Sequence: ttctcttccgaaaaatcatcagattcccatcatttttggcgatgttgtctattattaattTgctataggcaaacataaata
                         -35                 -10            +1                   
Evidence: [ICWHO]
Reference(s): [1] Bishop RE., et al., 1998
[2] Huerta AM., et al., 2003
Type: rho-independent
Sequence: aataagcaatAACGGTACGACAGCTGTGTCGTGCCGTttgttttttc
Reference(s): [1] Bishop RE., et al., 1998
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 OmpR-phosphorylated repressor ecnBp 4376517 4376536 18.5 tttgctatagGCAAACATAAATAACATTACctaaaaggaa nd [APIORCISFBSCS] [1]
sRNA Interaction TU
sRNA TU Regulated Function Binding Sites Regulatory Mechanism Evidence (Confirmed, Strong, Weak) Reference(s)
PosLeft PosRight Target sequence (mRNA)
small regulatory RNA MicA ecnB repressor 4376542 4376572 AGGAAGACGUUAUGGUGAAGAAGACAAUUGC nd [IEP] [3]

Transcription unit       
Name: ecnAB
Gene(s): ecnA, ecnB   Genome Browser M3D Gene expression COLOMBOS
Evidence: [ICWHO] Inferred computationally without human oversight

RNA cis-regulatory element    
Regulation, transcriptional elongation  
Attenuator type: Translational
Strand: forward
  Structure type Energy LeftPos RightPos Sequence (RNA-strand)
  terminator -21.3 4376270 4376301 agtaatgcggTTGTGGTGCGGCCTGCAGGCTGCACCATCACttattcaggt
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"