RegulonDB RegulonDB 10.10: Gene Form

isrB gene in Escherichia coli K-12 genome

Gene local context to scale (view description)

yecR unknown yecJ isrB azuC FlhDC FlhDC CRP CRP anti-anti-terminator anti-terminator terminator yecRp yecRp TSS_2240 TSS_2240 azuCp azuCp yecJp4 yecJp4 TSS_2239 (cluster) TSS_2239 (cluster)

Name: isrB    Texpresso search in the literature
Synonym(s): ECK1902, G0-8904, IS092, b4434
Type: Phantom Gene
Genome position(nucleotides): 1987839 <-- 1987998 Genome Browser
Strand: reverse
Sequence: Get nucleotide sequence FastaFormat
GC content %:  
Note(s): IS092 (isrB) denotes a region that produces an RNA of approximately 150-160 nt in length Chen S,2002.
It was later discovered that the region contains the |FRAME: G0-10653 azuC| open reading frame endoding a small protein that is is expressed equally during exponential and stationary phase Hemm MR, Paul BJ, Schneider TD, Storz G, Rudd KE,2008.
External database links:  

RNA cis-regulatory element    
Attenuation: Transcriptional

Elements in the selected gene context region unrelated to any object in RegulonDB      

  Type Name Post Left Post Right Strand Notes Evidence (Confirmed, Strong, Weak) References
  promoter TSS_2239 (cluster) 1987786 reverse nd [RS-EPT-CBR] [1]
  promoter yecJp4 1987802 reverse nd [ICWHO] [2]
  promoter TSS_2240 1988002 reverse nd [RS-EPT-CBR] [1]


 [RS-EPT-CBR] RNA-seq using two enrichment strategies for primary transcripts and consistent biological replicates

 [ICWHO] Inferred computationally without human oversight


 [1] Salgado H, Peralta-Gil M, Gama-Castro S, Santos-Zavaleta A, Muñiz-Rascado L, García-Sotelo JS, Weiss V, Solano-Lira H, Martínez-Flores I, Medina-Rivera A, Salgado-Osorio G, Alquicira-Hernández S, Alquicira-Hernández K, López-Fuentes A, Porrón-Sotelo L, Huerta AM, Bonavides-Martínez C, Balderas-Martínez YI, Pannier L, Olvera M, Labastida A, Jiménez-Jacinto V, Vega-Alvarado L, Del Moral-Chávez V, Hernández-Alvarez A, Morett E, Collado-Vides J., 2012, RegulonDB v8.0: omics data sets, evolutionary conservation, regulatory phrases, cross-validated gold standards and more., Nucleic Acids Res.

 [2] Huerta AM., Collado-Vides J., 2003, Sigma70 promoters in Escherichia coli: specific transcription in dense regions of overlapping promoter-like signals., J Mol Biol 333(2):261-78