Abstract

The rfaS gene, which is involved in production of a rough form of lipopolysaccharide core in Escherichia coli K-12, is not present in the rfa cluster of Salmonella typhimurium LT2. J D Klena , E Pradel and C A Schnaitman Department of Microbiology, Arizona State University, Tempe 85287-2701. ABSTRACT Partial sequencing of the rfa cluster of Salmonella typhimurium LT2 indicated a region of 336 bp between rfaP and rfaB in the site occupied by the rfaS gene in Escherichia coli K-12. This region does not contain a functional rfaS gene, although DNA analysis suggests that the region may have contained an ancestral gene. This conclusion that S. typhimurium LT2 lacks rfaS is supported by its lipopolysaccharide (LPS) gel phenotype, since LT2 does not make the lipooligosaccharide band characteristic of LPS from smooth strains of E. coli K-12. CiteULike Connotea Delicious Digg Facebook Google+ Mendeley Reddit StumbleUpon Twitter What's this? « Previous | Next Article » Table of Contents This Article J. Bacteriol. March 1993 vol. 175 no. 5 1524-1527 » Abstract PDF Classifications Research Article Services Email this article to a colleague Similar articles in ASM journals Alert me when this article is cited Alert me if a correction is posted Similar articles in this journal Similar articles in Web of Science Similar articles in PubMed Alert me to new issues of JB Download to citation manager Reprints and Permissions Copyright Information Books from ASM Press MicrobeWorld Citing Articles Load citing article information Citing articles via Web of Science Citing articles via Google Scholar Google Scholar Articles by Klena, J. D. Articles by Schnaitman, C. A. Search for related content PubMed PubMed citation Articles by Klena, J. D. Articles by Schnaitman, C. A. Related Content Load related web page information Social Bookmarking CiteULike Connotea Delicious Digg Facebook Google+ Mendeley Reddit StumbleUpon Twitter What's this? current issue December 2011, volume 193, issue 24 Alert me to new issues of JB About JB Subscribers Authors Reviewers Advertisers Inquiries from the Press Permissions & Commercial Reprints ASM Journals Public Access Policy JB RSS Feeds 1752 N Street N.W. • Washington DC 20036 202.737.3600 • 202.942.9355 fax • journals@asmusa.org Print ISSN: 0021-9193 Online ISSN: 1098-5530 Copyright © 2011 by the American Society for Microbiology. For an alternate route to JB .asm.org, visit: http://intl- JB .asm.org | More Info» var gaJsHost = (("https:" == document.location.protocol) ? "https://ssl." : "http://www."); document.write(unescape("%3Cscript src='" + gaJsHost + "google-analytics.com/ga.js' type='text/javascript'%3E%3C/script%3E")); var pageTracker = _gat._getTracker("UA-5821458-9"); pageTracker._trackPageview();