rdf:type |
|
lifeskim:mentions |
|
pubmed:issue |
3
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pubmed:dateCreated |
1982-7-19
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pubmed:abstractText |
The effect of various culture media on K99 antigen production by enterotoxigenic Escherichia coli strains of bovine origin was investigated by slide agglutination tests, enzyme-linked immunosorbent assays and in vitro attachment to intestinal villi. A-Alanine at concentrations higher than 0.7 g 1(-1) was responsible for the inhibition of K99 synthesis observed on media rich in amino acids. The increased inhibitory activity of L-alanine in glucose-rich media after autoclaving suggested the formation of inhibitory products via Maillard's reaction. Of various L-alanine derivatives tested, only those that hydrolysed to L-alanine were inhibitory. L-Alanine analogues were without effect and the addition of 10 mM-cyclic AMP did not overcome the repression of K99 biosynthesis by L-alanine. Enzymes involved in cell wall synthesis such as L-alanine racemase or D-alanyl-D-alanine synthetase were evidently were evidently unaffected by L-alanine.
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pubmed:language |
eng
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pubmed:journal |
|
pubmed:citationSubset |
IM
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pubmed:chemical |
http://linkedlifedata.com/resource/pubmed/chemical/Alanine,
http://linkedlifedata.com/resource/pubmed/chemical/Amino Acids,
http://linkedlifedata.com/resource/pubmed/chemical/Anti-Bacterial Agents,
http://linkedlifedata.com/resource/pubmed/chemical/Antigens,
http://linkedlifedata.com/resource/pubmed/chemical/Antigens, Bacterial,
http://linkedlifedata.com/resource/pubmed/chemical/Antigens, Surface,
http://linkedlifedata.com/resource/pubmed/chemical/Enterotoxins,
http://linkedlifedata.com/resource/pubmed/chemical/Glucose,
http://linkedlifedata.com/resource/pubmed/chemical/K antigens
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pubmed:status |
MEDLINE
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pubmed:month |
Mar
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pubmed:issn |
0022-1287
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pubmed:author |
|
pubmed:issnType |
Print
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pubmed:volume |
128
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pubmed:owner |
NLM
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pubmed:authorsComplete |
Y
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pubmed:pagination |
463-70
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pubmed:dateRevised |
2005-1-21
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pubmed:meshHeading |
pubmed-meshheading:7042906-Alanine,
pubmed-meshheading:7042906-Amino Acids,
pubmed-meshheading:7042906-Anti-Bacterial Agents,
pubmed-meshheading:7042906-Antigens,
pubmed-meshheading:7042906-Antigens, Bacterial,
pubmed-meshheading:7042906-Antigens, Surface,
pubmed-meshheading:7042906-Enterotoxins,
pubmed-meshheading:7042906-Escherichia coli,
pubmed-meshheading:7042906-Glucose
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pubmed:year |
1982
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pubmed:articleTitle |
Inhibition of K99 antigen synthesis by L-alanine enterotoxigenic Escherichia coli.
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pubmed:publicationType |
Journal Article
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