Source:http://linkedlifedata.com/resource/pubmed/id/10224423
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Predicate | Object |
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rdf:type | |
lifeskim:mentions | |
pubmed:issue |
2-4
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pubmed:dateCreated |
1999-6-10
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pubmed:abstractText |
The 43-kD latex allergen Hev b 7 was purified from the latex of Hevea brasiliensis and identified by N-terminal and internal peptide sequences as highly homologous to patatins. Patatins are storage proteins encoded by a multigene family found in plants such as potato and tomato. We have obtained a cDNA clone coding for a cytoplasmic form of Hev b 7. The recombinant protein was expressed in the methylotrophic yeast Pichia pastoris at 10 mg/l culture supernatant. Both natural Hev b 7 and rHev b 7 were recognized by IgE in 11% of the latex-allergic patients. rHev b 7 inhibited binding to its counterpart in natural rubber latex extracts. Purified rHev b 7 used at concentrations of 10 micrograms/ml in skin prick tests produced wheal-and-flare reactions of sizes equal to those produced by nHev b 7. Furthermore, we were able to show that rHev b 7 possessed esterase activity. A plant expression system for the production of larger quantities of recombinant latex allergens as an alternative to the preparation from H. brasiliensis sap is discussed.
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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/Allergens,
http://linkedlifedata.com/resource/pubmed/chemical/Antigens, Plant,
http://linkedlifedata.com/resource/pubmed/chemical/Carboxylic Ester Hydrolases,
http://linkedlifedata.com/resource/pubmed/chemical/Plant Proteins,
http://linkedlifedata.com/resource/pubmed/chemical/Recombinant Proteins,
http://linkedlifedata.com/resource/pubmed/chemical/allergen Hev b 7,
http://linkedlifedata.com/resource/pubmed/chemical/patatin protein, Solanum tuberosum
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pubmed:status |
MEDLINE
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pubmed:issn |
1018-2438
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pubmed:author | |
pubmed:issnType |
Print
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pubmed:volume |
118
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pubmed:owner |
NLM
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pubmed:authorsComplete |
Y
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pubmed:pagination |
309-10
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pubmed:dateRevised |
2010-11-18
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pubmed:meshHeading |
pubmed-meshheading:10224423-Allergens,
pubmed-meshheading:10224423-Antigens, Plant,
pubmed-meshheading:10224423-Carboxylic Ester Hydrolases,
pubmed-meshheading:10224423-Euphorbiaceae,
pubmed-meshheading:10224423-Latex Hypersensitivity,
pubmed-meshheading:10224423-Pichia,
pubmed-meshheading:10224423-Plant Proteins,
pubmed-meshheading:10224423-Recombinant Proteins
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pubmed:articleTitle |
Cloning of the patatin-like latex allergen Hev b 7, its expression in the yeast Pichia pastoris and its immunological characterization.
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pubmed:affiliation |
Department of General and Experimental Pathology, University of Vienna, Vienna, Austria. Heimo.Breiteneder@akh-wien.ac.at
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pubmed:publicationType |
Journal Article,
Research Support, Non-U.S. Gov't
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