Characterisation of coliphage K30, a bacteriophage specific for Escherichia coli capsular serotype K30
نویسندگان
چکیده
منابع مشابه
Primary structure of the Escherichia coli serotype K30 capsular polysaccharide.
Methylation, 1H nuclear magnetic resonance, and bacteriophage degradation results indicate that the Escherichia coli serotype K30 capsular polysaccharide consists of leads to 2)-alpha-D-Manp-(1 leads to 3)-beta-D-Galp-(1 leads to chains carrying beta-D-GlcUAp-(1 leads to 3)-alpha-D-Galp-(1 leads to branches at position 3 of the mannoses.
متن کاملA novel outer membrane protein, Wzi, is involved in surface assembly of the Escherichia coli K30 group 1 capsule.
Escherichia coli group 1 K antigens form a tightly associated capsule structure on the cell surface. Although the general features of the early steps in capsular polysaccharide biosynthesis have been described, little is known about the later stages that culminate in assembly of a capsular structure on the cell surface. Group 1 capsule biosynthesis gene clusters (cps) in E. coli and Klebsiella ...
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For the development of phage therapy, systematic understanding mechanisms of bacteriophage resistance will be required. We describe a new strain of Escherichia coli O157:H7, named Mu(L), which stably co-exists with the O157:H7-specific lytic bacteriophage PP01. Chemostat cultures of E. coli O157:H7 infected with PP01 showed unchanging cell concentration, but phage concentrations which increased...
متن کاملTranslocation of group 1 capsular polysaccharide to the surface of Escherichia coli requires a multimeric complex in the outer membrane.
Surface expression of the group 1 K30 capsular polysaccharide of Escherichia coli strain E69 (O9a:K30) requires Wza(K30), a member of the outer membrane auxiliary (OMA) protein family. A mutation in wza(K30) severely restricts the formation of the K30 capsular structure on the cell surface, but does not interfere with the biosynthesis or polymerization of the K30 repeat unit. Here we show that ...
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Phage H, thought to be specific for Pasteurella pestis, was shown to plate efficiently on F(-) strains of Escherichia coli but not on F(+), F', or Hfr strains. The phage was adsorbed rapidly to F(-) strains but was not adsorbed to strains carrying F. Comparison with seven other reported female-specific phages showed that, although phage H was similar to the other phages in some characteristics,...
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ژورنال
عنوان ژورنال: FEMS Microbiology Letters
سال: 1986
ISSN: 0378-1097
DOI: 10.1016/0378-1097(86)90434-9