RegulonDB RegulonDB 10.8: Operon Form
   

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




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


Transcription unit       
Name: speB
Gene(s): speB   Genome Browser M3D Gene expression COLOMBOS
Evidence: [BTEI] Boundaries of transcription experimentally identified
Reference(s): [1] Szumanski MB., et al., 1990
Promoter
Name: speBp
+1: 3083946
Sigma Factor: Sigma38 Sigmulon
Distance from start of the gene: 149
Sequence: gaactgcaacaacagttccttgaagagttcgaggcaggtttgtacggttatacttatcttGaagatgagtaagtcctgtgt
                            -35             -10             +1                   
Evidence: [HIPP]
[TIM]
Reference(s): [1] Szumanski MB., et al., 1990


Transcription unit          
Name: speAB
Synonym(s): OP00287
Gene(s): speB, speA   Genome Browser M3D Gene expression COLOMBOS
Evidence: [LTED] Length of transcript experimentally determined
Reference(s): [1] Szumanski MB., et al., 1990
Promoter
Name: speAp
+1: 3086048
Sigma Factor: Sigma70 Sigmulon
Distance from start of the gene: 137
Sequence: ttctcgtggtttcgccgaactttcacacttacgttcggttatgtgcttaataatgttatgAaaaagaaaccggttgcgcag
                      -35                        -10        +1                   
Evidence: [HIPP]
Reference(s): [2] Moore RC., et al., 1990
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 PurR-hypoxanthine repressor speAp 3086030 3086045 11.5 tgttatgaaaAAGAAACCGGTTGCGCagttggagcg nd [APIORCISFBSCS], [BCE], [CV(GEA)], [GEA] [3]


RNA cis-regulatory element    
Regulation, transcriptional elongation  
Attenuator type: Transcriptional
Strand: reverse
  Structure type Energy LeftPos RightPos Sequence (RNA-strand)
  terminator -23.8 3083824 3083867 tgacaaatccAACCCTTCCTCGTCGGGCCTAACGACGCGGAAGGGTTTTTTTAtatcgacttt
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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