Did you know ? If you order before Friday 14h we deliver 90PCT of the the time next Tuesday, GENTAUR another in time delivery
Publication Date : //
Escherichia coli AW1.7 is a heat resistant food isolate and the occurrence of pathogenic strains with comparable heat resistance may pose a risk to food safety. To identify the genetic determinants of heat resistance, 29 strains of E. coli that differed in their of heat resistance were analyzed by comparative genomics. Strains were classified as highly heat resistant strains, exhibiting a D60-value of more than 6 min; moderately heat resistant strains, exhibiting a D60-value of more than 1 min; or as heat sensitive. A ~14 kb genomic island containing 16 predicted open reading frames encoding putative heat shock proteins and proteases was identified only in highly heat resistant strains. The genomic island was termed the locus of heat resistance (LHR). This putative operon is flanked by mobile elements and possesses >99% sequence identity to genomic islands contributing to heat resistance in Cronobacter sakazakii and Klebsiella pneumoniae. An additional 41 LHR sequences with >87% sequence identity were identified in 11 different species of β- and γ-proteobacteria. Cloning of the full length LHR conferred high heat resistance to the heat sensitive E. coli AW1.7ΔpHR1 and DH5α. The presence of the LHR correlates perfectly to heat resistance in several species of Enterobacteriaceae and occurs at a frequency of 2% of all E. coli genomes, including pathogenic strains. This study suggests the LHR has been laterally exchanged among the β- and γ-proteobacteria and is a reliable indicator of high heat resistance in E. coli.
Authors : Mercer Ryan G , Zheng Jinshui , Garcia-Hernandez Rigoberto , Ruan Lifang , Gänzle Michael G , McMullen Lynn M ,
Related products :
52062 Aachen Deutschland
Support Karolina Elandt
Tel: +49 0241 40 08 90 86, +49 0241 95 78 94 78, +49 0241 40 08 90 86
Fax: (+49) 241 56 00 47 88
Logistic :0241 40 08 90 86
IBAN lautet DE8839050000107569353
Handelsregister Aachen HR B 16058
Umsatzsteuer-Identifikationsnummer *** DE 815175831
firstname.lastname@example.org | Gentaur | Gentaur
Genprice Inc, Logistics
547, Yurok Circle
San Jose, CA 95123
Tel (408) 780-0908,
Fax (408) 780-0908,
Genprice Inc, Invoices and accounting
6017 Snell Ave, Ste 357
San Jose, CA 95123
Canada Montreal +15149077481
Ceská republika Praha +420246019719
Finland Helsset +358942419041
Magyarország Budapest +3619980547
US New York+17185132983
WP2272: Pathogenic Escherichia coli infection
WP1902: Respiratory electron transport, ATP synthesis by chemiosmotic coupling, and heat production by uncoupling proteins.
WP1967: Glucocorticoid action and resistance
WP1968: genetic alternations of lung cancer
WP2199: Seed Development
Related Genes :
 Virulence factors and antimicrobial resistance in Escherichia coli strains isolated from hen egg shells.
 Genetic diversity, the virulence gene profile and antimicrobial resistance of clinical mastitis-associated Escherichia coli.
 Genetic determinants of heat resistance in Escherichia coli.
 Molecular Characterization of Enterotoxin-Producing Escherichia coli Collected in 2011-2012, Russia.
 Proteome-wide subcellular topologies of E. coli polypeptides database (STEPdb).
 [Genetic markers of pathogenicity of conditionally pathogenic enterobacteria isolated from children with diarrheal diseases].
 Effect of acid adaptation on the fate of Listeria monocytogenes in THP-1 human macrophages activated by gamma interferon.
 Localization, cloning, and expression of genetic determinants for bacteriophage resistance (Hsp) from the conjugative plasmid pTR2030.
 Enterotoxin plasmids in bovine and porcine enterotoxigenic Escherichia coli of O groups 9, 20, 64 and 101.
 Acquisition and maintenance of enterotoxin plasmids in wild-type strains of Escherichia coli.
Enter catalog number :