These tools will no longer be maintained as of December 31, 2024. Archived website can be found here. PubMed4Hh GitHub repository can be found here. Contact NLM Customer Service if you have questions.


Pubmed for Handhelds

PUBMED FOR HANDHELDS

Search MEDLINE/PubMed

  • Title: Molecular cloning of the plasmid-located determinants for CS1 and CS2 fimbriae of enterotoxigenic Escherichia coli of serotype O6:K15:H16 of human origin.
    Author: Boylan M, Coleman DC, Scott JR, Smyth CJ.
    Journal: J Gen Microbiol; 1988 Aug; 134(8):2189-99. PubMed ID: 2473163.
    Abstract:
    The plasmid pCS001, isolated from an enterotoxigenic strain of Escherichia coli, mediates expression of the CS1 or CS2 and CS3 fimbrial adhesins in appropriate E. coli hosts. To characterize this further, HindIII-generated DNA fragments of this plasmid were cloned into the vector plasmid pBR322. A chimaera, called pCS200, which mediated expression of the CS1 or CS2 fimbrial antigen but not of CS3 fimbrial antigen in appropriate host strains, was obtained. The DNA inserted into the vector sequences of plasmid pCS200 comprised HindIII fragments of 4.7 kbp and 0.8 kbp. Plasmid pCS200-carrying wild-type E. coli hosts of serotype O6:K15:H16 that expressed the CS1 or CS2 antigen also caused mannose-resistant agglutination of bovine red blood cells, suggesting that functional fimbriae were present on the bacterial surface. As previously observed with strain K12 recipients of CS-fimbriae-associated plasmids mobilized from wild-type enterotoxigenic E. coli, K12 recipients of the chimaeric plasmid pCS200 did not express the CS1 or CS2 fimbrial antigen. An oligonucleotide probe, synthesized on the basis of the published N-terminal amino acid sequence of the CS2 fimbrial subunit, hybridized to plasmid pCS200, indicating that the gene for the structural subunit of this fimbria resided on the plasmid.
    [Abstract] [Full Text] [Related] [New Search]