CLONING AND CHARACTERIZATION OF CDNA CODING FOR A NEW ALLERGEN FROM THE HOUSE-DUST MITE, DERMATOPHAGOIDES-FARINAE

被引:34
作者
AKI, T
ONO, K
PAIK, SY
WADA, T
JYO, T
SHIGETA, S
MUROOKA, Y
OKA, S
机构
[1] HIROSHIMA UNIV,FAC ENGN,DEPT FERMENTAT TECHNOL,HIGASHIHIROSHIMA 724,JAPAN
[2] FUMAKILLA LTD,DEV & ADM SECT,HIROSHIMA,JAPAN
[3] HIROSHIMA PREFECTURAL HOSP,DEPT INTERNAL MED 3,HIROSHIMA,JAPAN
关键词
MITE ALLERGEN; CDNA; SEQUENCING; DERMATOPHAGOIDES FARINAE;
D O I
10.1159/000236653
中图分类号
R392 [医学免疫学];
学科分类号
100102 ;
摘要
A cDNA clone encoding a new allergen from the Dermatophagoides farinae cDNA lambda gt11 library was isolated and sequenced. There was no amino acid sequence homology with other known allergens. The gene product, beta-galactosidase fusion protein, of the truncated cDNA on blot reacted with IgE in 13 of 43 sera from patients allergic to mites. The affinity-purified fusion protein had a potent ability to release histamine from washed blood cells of the mite-allergic patients. Human specific IgE eluted from the fusion protein band on blots recognized a 39-kD component on blots of a mite body extract.
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页码:349 / 356
页数:8
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