GenePage for the ariR gene of Escherichia coli K-12

Primary Gene Name: ariR
EcoGene Accession Number: EG14290
K-12 Gene Accession Number: ECK1153
MG1655 Gene Identifier: b1166
Gene Name Mnemonic: Regulator of Acid Resistance influenced by Indole
Alternate Gene Symbols: ymgB
Description: Connector protein for RcsB regulation of biofilm and acid-resistance
  # bp Upstream # bp Downstream
MW: 9694.02 ---------88 aa Pre-Run BlastP UniProt
Pre-Run BlastP NR+Env
Left End: 1216369
Left Intergenic Region

Name: ymgA_ariR

Length: 28 bp gap

Orientation: Codirectional+

Left_end: 1216341

Right_end: 1216368

Centisome: 26.20

Genomic Address
Clockwise
Minute or Centisome (%) = 26.21
Right End: 1216635
Right Intergenic Region

Name: ariR_ymgC

Length: 112 bp gap

Orientation: Codirectional+

Left_end: 1216636

Right_end: 1216747

Centisome: 26.21

AriR(YmgB) is a global regulator that is upregulated by cytoplasmic pH stress (Kannan, 2008). AriR(YmgA) mediates the 5-fluorouracil represssion of biofilm formation (Attila, 2009). Blue light activation of the BluF(YgcF) anti-repressor relieves BluR(YcgE) repression of the cold-shock RpoS-activated small protein operon ycgZ-ymgA-ariR-ymgC operon; connector proteins AirR(YmgB) (at 28C) and YmgA (at 16C) stimulate colanic acid synthesis and inhibit curli production by an RcsA-independent activation of RcsB; RcsB activation is antagonized by connector protein YcgZ (Tschowri, 2009). AirR(YmgB) stimulates acid resistance genes (Tschowri, 2009). AirR(YmgB), YmgA and YcgZ are connector proteins, small proteins which influence the activity of specific two-component systems (Tschowri, 2009). AriR may be a dimeric DNA binding protein. AriR is blue light, low temperature and stress inducible and in the BluRF(YcgEF) and RpoS regulons.

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BamHI EcoRI HindIII