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dc.contributor.authorS. Piboonpocanunen_US
dc.contributor.authorN. Malainualen_US
dc.contributor.authorO. Jirapongsananuruken_US
dc.contributor.authorP. Vichyanonden_US
dc.contributor.authorW. R. Thomasen_US
dc.contributor.otherMahidol Universityen_US
dc.contributor.otherUniversity of Western Australiaen_US
dc.contributor.otherInstitute of Molecular Biology and Geneticsen_US
dc.identifier.citationClinical and Experimental Allergy. Vol.36, No.4 (2006), 510-516en_US
dc.description.abstractBackground: Polymorphic sequence substitutions in the major mite allergens can markedly affect immunoglobulin E binding and T cell responses, but there are few studies on environmental isolates from Dermatophagoides pteronyssinus and none for D. farinae. Objective: To determine the sequence variation of the group 1 and 2 allergens from environmental D. pteronyssinus and D. farinae. Methods: RNA from each species was isolated from homes in Bangkok and the sequence of Der p 1, Der p 2, Der f 1, and Der f 2 determined from cDNA produced by high fidelity polymerase chain reactions. Results: The enlarged data set revealed preferred amino acid substitutions in residues 19, 81, and 215 of Der p 1 as well as sporadic changes. Der p 2 showed frequent variations with clusters of amino acid substitutions, but the canonical Der p 2.0101 was not found in any of 17 sequences. Der f 2 showed variants with clusters of substitutions similar to Der p 2 but in different amino acid positions and without any structural concordance. Der f 1 in contrast to the other allergens had few amino acid sequence substitutions. Conclusions: The sequence information on variants provides data important for the optimal design of allergen formulations and useful for the genetic engineering and structure-function analyses of the major allergens. © 2006 Blackwell Publishing Ltd.en_US
dc.rightsMahidol Universityen_US
dc.subjectImmunology and Microbiologyen_US
dc.titleGenetic polymorphisms of major house dust mite allergensen_US
Appears in Collections:Scopus 2006-2010

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