RegulonDB RegulonDB 10.9: Operon Form
   

rybA-mntS operon and associated TUs in Escherichia coli K-12 genome




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


Transcription unit          
Name: rybA-mntS
Gene(s): rybA, mntS   Genome Browser M3D Gene expression COLOMBOS
Note(s): RybA is a bifunctional RNA that acts as both an sRNA and an mRNA for MntS Gerstle K,2012. Waters LS,2011 Therefore, rybA and mntS overlap. Based on 5´- and 3´-RACE analysis, RybA is rapidly processed at the 5´ end as well as at multiple sites at the 3´ end. The predominant form under peroxide stress conditions is 207 nt long (positions 852270 to 852064) Gerstle K,2012
Evidence: [BTEI] Boundaries of transcription experimentally identified
[LTED] Length of transcript experimentally determined
Reference(s): [1] Gerstle K., et al., 2012
[2] Waters LS., et al., 2011
Promoter
Name: rybAp
+1: 853064
Sigma Factor: Sigma70 Sigmulon
Distance from start of the gene: 67
Sequence: aaccagagttgcgaaggtacaaaaaattaacgttttagcaatagctatataatatagcctGtgctatatctgtatgtaatg
                           -35                  -10         +1                   
Note(s): Based on 5´-RACE experiments, an additional 5´ end located 17 bp downstream of the transcription start site (position 852270) has been identified Waters LS,2011 Based on a deletion analysis and mutational analysis of the promoter, as well as gene expression analysis, in which the rybA transcript was expressed under the control of a constitutive lac promoter, it was proposed that this 5´ end is generated by RNA processing Gerstle K,2012 The RNase responsible for the processing is not known.
Evidence: [TIM]
Reference(s): [1] Gerstle K., et al., 2012
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 MntR repressor rybAp 853054 853075 -0.5 caatagctatATAATATAGCCTGTGCTATATCTgtatgtaatg nd [APIORCISFBSCS], [GEA] [2]
proximal MntR repressor rybAp 853073 853094 -19.5 caaaaaattaACGTTTTAGCAATAGCTATATAAtatagcctgt nd [APIORCISFBSCS], [GEA] [2]





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