Structure of the house dust mite allergen Der f 2: Implications for function and molecular basis of IgE cross-reactivity

被引:44
作者
Johannessen, BR
Skov, LK
Kastrup, JS
Kristensen, O
Bolwig, C
Larsen, JN
Spangfort, M
Lund, K
Gajhede, M
机构
[1] Danish Univ Pharmaceut Sci, Dept Med Chem, DK-2100 Copenhagen, Denmark
[2] ALK Abello, DK-2970 Horsholm, Denmark
关键词
Dermatophagoides farinae group 2 major allergen; cross-reacting epitope; hydrophobic cavity; lipid binding;
D O I
10.1016/j.febslet.2004.11.115
中图分类号
Q5 [生物化学]; Q7 [分子生物学];
学科分类号
071010 ; 081704 ;
摘要
The X-ray structure of the group 2 major allergen from Dermatophagoides farinae (Der f 2) was determined to 1.83 Angstrom resolution. The overall Der f 2 structure comprises a single domain of immunoglobulin fold with two anti-parallel beta-sheets. A large hydrophobic cavity is formed in the interior of Der f 2. Structural comparisons to distantly related proteins suggest a role in lipid binding. Immunoglobulin E (IgE) cross-reactivity between group 2 house dust mite major allergens can be explained by conserved surface areas representing IgE binding epitopes. (C) 2005 Federation of European Biochemical Societies. Published by Elsevier B.V. All rights reserved.
引用
收藏
页码:1208 / 1212
页数:5
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