scholarly journals Role of Escherichia coli K-12 rfa genes and the rfp gene of Shigella dysenteriae 1 in generation of lipopolysaccharide core heterogeneity and attachment of O antigen.

1992 ◽  
Vol 174 (22) ◽  
pp. 7297-7307 ◽  
Author(s):  
J D Klena ◽  
R S Ashford ◽  
C A Schnaitman
Keyword(s):  
Escherichia Coli ◽  
Shigella Dysenteriae ◽  
O Antigen ◽  
K 12

scholarly journals Expression of lipopolysaccharide O antigen in Escherichia coli K-12 hybrids containing plasmid and chromosomal genes from Shigella dysenteriae 1.

1984 ◽  
Vol 46 (2) ◽  
pp. 470-475 ◽  
Author(s):  
T L Hale ◽  
P Guerry ◽  
R C Seid ◽  
C Kapfer ◽  
M E Wingfield ◽  
...  
Keyword(s):  
Escherichia Coli ◽  
Shigella Dysenteriae ◽  
O Antigen ◽  
Chromosomal Genes ◽  
K 12

Synthesis of a tetrasaccharide related to the repeating unit of the O-antigen from Escherichia coli K-12

2009 ◽  
Vol 344 (17) ◽  
pp. 2311-2316 ◽  
Author(s):  
Bimalendu Roy ◽  
Robert A. Field ◽  
Balaram Mukhopadhyay
Keyword(s):  
Escherichia Coli ◽  
O Antigen ◽  
K 12

scholarly journals Regulatory Role of PlaR (YiaJ) for Plant Utilization in Escherichia coli K-12

2019 ◽  
Vol 9 (1) ◽  
Author(s):  
Tomohiro Shimada ◽  
Yui Yokoyama ◽  
Takumi Anzai ◽  
Kaneyoshi Yamamoto ◽  
Akira Ishihama
Keyword(s):  
Escherichia Coli ◽  
Genetic System ◽  
Regulatory Role ◽  
E Coli ◽  
Warm Blooded Animal ◽  
Plant Utilization ◽  
K 12

AbstractOutside a warm-blooded animal host, the enterobacterium Escherichia coli K-12 is also able to grow and survive in stressful nature. The major organic substance in nature is plant, but the genetic system of E. coli how to utilize plant-derived materials as nutrients is poorly understood. Here we describe the set of regulatory targets for uncharacterized IclR-family transcription factor YiaJ on the E. coli genome, using gSELEX screening system. Among a total of 18 high-affinity binding targets of YiaJ, the major regulatory target was identified to be the yiaLMNOPQRS operon for utilization of ascorbate from fruits and galacturonate from plant pectin. The targets of YiaJ also include the genes involved in the utilization for other plant-derived materials as nutrients such as fructose, sorbitol, glycerol and fructoselysine. Detailed in vitro and in vivo analyses suggest that L-ascorbate and α-D-galacturonate are the effector ligands for regulation of YiaJ function. These findings altogether indicate that YiaJ plays a major regulatory role in expression of a set of the genes for the utilization of plant-derived materials as nutrients for survival. PlaR was also suggested to play protecting roles of E. coli under stressful environments in nature, including the formation of biofilm. We then propose renaming YiaJ to PlaR (regulator of plant utilization).

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