coli pathotypes that have been sequenced so far show a striking mosaic pattern, with 2,000 genes present in 247 islands in one pathotype that are not present in K-12. Up to 0.53 MB of DNA present in K-12 can also be absent from pathogenic E. coli. Genes that encode virulence factors...
escherichia coli k12名词解释: 人和动物肠道 内的一种细菌。主要寄生于大肠内。有的能引起腹泻,有的在肠内不致病,且对人有益。进入其他器官 时可能引起疾病,如腹膜炎、膀胱炎等。大肠杆菌的数量常作为检验水源受污染程度的一种指标。 Escheri-chia是大肠杆菌的属名; coli是大肠杆菌的种名; K12是大肠杆菌的株名...
coli phylogroup B2 was found in patients with right-sided CRC when compared to patients with left-sided CRC, p???=???0.028. Conclusions Large intestinal mucosa of patients with more advanced colorectal neoplasia is colonized with more virulent strains of E. coli and higher production of ...
Escherichia coli and Salmonella: Cellular and Molecular Biology, Biology, 2nd ednAuthor(s): MH Saier, TM Ramseier, J Reizer, TM Ramseier Publication date: 1996 Read this article at ScienceOpen Bookmark There is no author summary for this article yet. Authors can add summaries to their ...
2′-FL concentration. The cells were engineered not to metabolize lactose by deleting their endogenous β-galactosidase gene (lacZ) while retaininglacYto import 2′-FL. TwoE. coliBL21 (DE3) variants, ∆L YA and ∆L M15, with different levels of residual β-galactosidase activity, were ...
The nicotinamide adenine dinucleotide regeneration system present in Escherichiacoli cells was exploited for the oxidation and deracemisation of secondary alcohols with the overexpressed alcohol dehydrogenase from Rhodococcus ruber DSM 44541 (E.coli/ADH-A). Thus, various racemic alcohols were selectively ox...
Furthermore, Bangladeshi children are reportedly more susceptible to symptomatic enterotoxigenic Escherichia coli (ETEC) infection if they are non-secretors. Therefore, in an attempt to identify a non-secretor status genotypic biomarker of altered susceptibility to ETEC infection, we used the 1000 ...
We synthesized 2-phenoxyethanol galactoside (PE-Gal) from 2-phenoxyethanol (PE), in which Escherichia coli β-gal (as E. coli cells) and lactose were added in the reaction mixture for galactosylation. About 40mM PE-Gal was maximally synthesized from about 80mM PE at 24h as about 50% conver...
coli commonly used in genetic studies were exposed to ozone and the results described in this paper indicate that exrA and ( lex ), but not uvrA genes affect sensitivity to ozone. No relationship between this latter property and the capacity to repair UV-damaged infecting phage (host cell ...
2,5-Dimethylpyrazine (2,5-DMP) is important pharmaceutical raw material and food flavoring agent. Recently, engineering microbes to produce 2,5-DMP has become an attractive alternative to chemical synthesis approach. In this study, metabolic engineering