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Predicate | Object |
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rdf:type | |
lifeskim:mentions | |
pubmed:issue |
2-3
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pubmed:dateCreated |
1997-9-3
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pubmed:databankReference | |
pubmed:abstractText |
Mutacins are bactericidal substances of proteinaceous nature produced by Streptococcus mutans. Lantibiotics are antibacterial substances containing post-translationally modified amino acids such as lanthionine. Mutacin B-Ny266 was purified from the cell pellet of S. mutans strain Ny266 by ethanol extraction at pH 2.0 followed by reversed-phase chromatography (Sep-Pak cartridge) and by HPLC on a C18 column. The mean purification factor was 3240 +/- 81 and the mean yield was 1.0 +/- 0.1%. Molecular mass of mutacin B-Ny266 as determined by mass spectroscopy is 2270.29 +/- 0.21 Da. The amino acid sequence of the purified active fraction was obtained by Edman degradation after treatment with alkaline ethanethiol. Twenty-one amino acids were detected in this analysis. Mutacin B-Ny266 belongs to the type A lantibiotics. The proposed sequence is: F-K-A-W-U-F-A-Abu-P-G-A-A-K-O-G-A-F-N-U-Y-A. The molecule differs from that of epidermin/staphylococcin 1580 and gallidermin at positions 1, 2, 4, 5 and 6.
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pubmed:language |
eng
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pubmed:journal | |
pubmed:citationSubset |
IM
|
pubmed:chemical |
http://linkedlifedata.com/resource/pubmed/chemical/2-(4-isothiocyanatophenoxy)-1,3,2-di...,
http://linkedlifedata.com/resource/pubmed/chemical/Bacteriocins,
http://linkedlifedata.com/resource/pubmed/chemical/Organophosphorus Compounds,
http://linkedlifedata.com/resource/pubmed/chemical/Sulfhydryl Compounds,
http://linkedlifedata.com/resource/pubmed/chemical/ethanethiol
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pubmed:status |
MEDLINE
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pubmed:month |
Jun
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pubmed:issn |
0014-5793
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pubmed:author | |
pubmed:issnType |
Print
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pubmed:day |
30
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pubmed:volume |
410
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pubmed:owner |
NLM
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pubmed:authorsComplete |
Y
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pubmed:pagination |
275-9
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pubmed:dateRevised |
2006-11-15
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pubmed:meshHeading |
pubmed-meshheading:9237644-Amino Acid Sequence,
pubmed-meshheading:9237644-Bacteriocins,
pubmed-meshheading:9237644-Mass Spectrometry,
pubmed-meshheading:9237644-Molecular Sequence Data,
pubmed-meshheading:9237644-Organophosphorus Compounds,
pubmed-meshheading:9237644-Sequence Homology, Amino Acid,
pubmed-meshheading:9237644-Streptococcus mutans,
pubmed-meshheading:9237644-Sulfhydryl Compounds
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pubmed:year |
1997
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pubmed:articleTitle |
Purification and structure of mutacin B-Ny266: a new lantibiotic produced by Streptococcus mutans.
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pubmed:affiliation |
Centre de Recherche en Sciences et Technologie du Lait (STELA), Faculté des Sciences de l'Agriculture et de l'Alimentation, Université Laval, Québec, Canada.
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pubmed:publicationType |
Journal Article,
Research Support, Non-U.S. Gov't
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