Source:http://linkedlifedata.com/resource/pubmed/id/10930733
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Predicate | Object |
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rdf:type | |
lifeskim:mentions | |
pubmed:issue |
2
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pubmed:dateCreated |
2000-9-12
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pubmed:abstractText |
We have previously proposed that the BlmIV and BlmIII non-ribosomal peptide synthetases are involved in the formation of the bithiazole moiety of the anti-tumor drug bleomycin in Streptomyces verticillus ATCC15003. We report here the identification and characterization of an oxidation domain in BlmIII. The oxidation domain shows local homology to a family of oxidoreductases and is present in all thiazole-forming non-ribosomal peptide synthetase modules known to date. Both the blmIII-Ox domain and blmIII gene were expressed in Escherichia coli, and the resulting BlmIII-Ox and BlmIII proteins were purified to homogeneity. The oxidation domain contains one molar equivalent of non-covalently bound FMN as a prosthetic group. These results provide experimental evidence for an oxidation domain within non-ribosomal peptide synthetases, suggesting that BlmIII-Ox probably catalyzes the thiazoline to thiazole oxidation in bleomycin biosynthesis.
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pubmed:grant | |
pubmed:language |
eng
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pubmed:journal | |
pubmed:citationSubset |
IM
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pubmed:chemical | |
pubmed:status |
MEDLINE
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pubmed:month |
Aug
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pubmed:issn |
0378-1097
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pubmed:author | |
pubmed:issnType |
Print
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pubmed:day |
15
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pubmed:volume |
189
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pubmed:owner |
NLM
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pubmed:authorsComplete |
Y
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pubmed:pagination |
171-5
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pubmed:dateRevised |
2007-11-14
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pubmed:meshHeading |
pubmed-meshheading:10930733-Amino Acid Sequence,
pubmed-meshheading:10930733-Bleomycin,
pubmed-meshheading:10930733-Catalysis,
pubmed-meshheading:10930733-Molecular Sequence Data,
pubmed-meshheading:10930733-Peptide Synthases,
pubmed-meshheading:10930733-Sequence Alignment,
pubmed-meshheading:10930733-Streptomyces,
pubmed-meshheading:10930733-Substrate Specificity,
pubmed-meshheading:10930733-Thiazoles
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pubmed:year |
2000
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pubmed:articleTitle |
An oxidation domain in the BlmIII non-ribosomal peptide synthetase probably catalyzing thiazole formation in the biosynthesis of the anti-tumor drug bleomycin in Streptomyces verticillus ATCC15003.
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pubmed:affiliation |
Department of Chemistry, University of California, One Shields Avenue, Davis, CA 95616, USA.
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pubmed:publicationType |
Journal Article,
Research Support, U.S. Gov't, P.H.S.,
Research Support, Non-U.S. Gov't
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