ALLERGEN NOMENCLATURE
WHO/IUIS Allergen Nomenclature Sub-Committee

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Allergen Details:

Allergen name: Chi t 2
Allergen source: Major taxonomic group: Animalia Arthropoda
Order: Diptera
Species: Chironomus thummi thummi (Midge)
NCBI Taxomony ID: 7155
Obsolete name:Chi t I
Biochemical name:Hemoglobin, component I/IA
MW(SDS-PAGE):16 kDa
Allergenicity:Of 86 subjects with IgE against C.thummi thummi larvae, 76 had IgE against Chi t I, which comprises 12 homologous hemoglobins (Chi t 1-9). 56 of these 76 people were symptomatic. Chi t I induced histamine release in basophils of all 20 patients tested, and acute rhinitis and/or asthmatic reactions in all 25 patients tested in inhalation challenge test.
Allergenicity reference:PubMed:1701849
Route of allergen exposure:Airway
Date Created:22-05-2003
Last Updated:2019-07-31 07:38:17
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Table of IsoAllergens Click +/- for additional information
Isoallergen and variants GenBank Nucleotide GenBank Protein UniProt PDB
Chi t 2.0101U14627AAA80189 P02221 
Chi t 2.0102  P02221 (variant A113T)