Abstract
An immunoreactive clone, which shares no homology with the major allergens, Der f I and Der f II, was isolated by screening of a Dermatophagoides farinae cDNA library with rabbit antiserum raised against an extract of the house dust mite and sera from patients with mite allergy. The deduced amino acid sequence of the cDNA of the clone is significantly homologous, up to 65.5%, to the carboxyl-terminal region of the heat shock cognate protein (hsc) 71 in the heat shock protein (hsp) 70 family. A pool of the recombinant protein-specific IgE purified from mite-allergic sera recognized a 67 kDa protein on a blot of ATP-binding components partially purified from the mite body extract, while the antibody did not bind to the major allergens. We conclude that the recombinant protein, one of several important allergens, may be a protein in the heat shock protein 70 family from the house dust mite, D. farinae.
Publication types
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Research Support, Non-U.S. Gov't
MeSH terms
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Allergens / chemistry
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Allergens / genetics*
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Allergens / immunology
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Allergens / isolation & purification
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Amino Acid Sequence
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Animals
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Antigens, Dermatophagoides
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Arthropod Proteins
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Base Sequence
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Cloning, Molecular
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DNA, Complementary / chemistry
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DNA, Complementary / genetics
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Dust
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Heat-Shock Proteins / chemistry
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Heat-Shock Proteins / genetics*
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Humans
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Immunoblotting
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Mites / immunology*
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Molecular Sequence Data
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Proteins / chemistry
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Proteins / genetics*
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Proteins / immunology
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Proteins / isolation & purification
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Rabbits
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Recombinant Proteins / chemistry
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Recombinant Proteins / genetics
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Recombinant Proteins / immunology
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Recombinant Proteins / isolation & purification
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Sequence Alignment
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Sequence Homology, Amino Acid
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Sequence Homology, Nucleic Acid
Substances
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Allergens
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Antigens, Dermatophagoides
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Arthropod Proteins
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DNA, Complementary
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Dust
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Heat-Shock Proteins
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Mag29 protein, Dermatophagoides farinae
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Proteins
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Recombinant Proteins