- PDB-6gkt: X-ray structure of a non-autocrystallizing galectin-10 variant, G... -
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基本情報
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データベース: PDB / ID: 6gkt
タイトル
X-ray structure of a non-autocrystallizing galectin-10 variant, Gal10-Tyr69Glu
要素
Galectin-10
キーワード
SUGAR BINDING PROTEIN / Non-autocrystallizing / mutant / galectin-10
機能・相同性
機能・相同性情報
regulation of activated T cell proliferation / regulation of T cell cytokine production / T cell apoptotic process / regulation of T cell anergy / : / carbohydrate binding / collagen-containing extracellular matrix / identical protein binding / cytosol 類似検索 - 分子機能
ジャーナル: Science / 年: 2019 タイトル: Protein crystallization promotes type 2 immunity and is reversible by antibody treatment. 著者: Emma K Persson / Kenneth Verstraete / Ines Heyndrickx / Elien Gevaert / Helena Aegerter / Jean-Michel Percier / Kim Deswarte / Koen H G Verschueren / Ann Dansercoer / Delphine Gras / Pascal ...著者: Emma K Persson / Kenneth Verstraete / Ines Heyndrickx / Elien Gevaert / Helena Aegerter / Jean-Michel Percier / Kim Deswarte / Koen H G Verschueren / Ann Dansercoer / Delphine Gras / Pascal Chanez / Claus Bachert / Amanda Gonçalves / Hanne Van Gorp / Hans De Haard / Christophe Blanchetot / Michael Saunders / Hamida Hammad / Savvas N Savvides / Bart N Lambrecht / 要旨: Although spontaneous protein crystallization is a rare event in vivo, Charcot-Leyden crystals (CLCs) consisting of galectin-10 (Gal10) protein are frequently observed in eosinophilic diseases, such ...Although spontaneous protein crystallization is a rare event in vivo, Charcot-Leyden crystals (CLCs) consisting of galectin-10 (Gal10) protein are frequently observed in eosinophilic diseases, such as asthma. We found that CLCs derived from patients showed crystal packing and Gal10 structure identical to those of Gal10 crystals grown in vitro. When administered to the airways, crystalline Gal10 stimulated innate and adaptive immunity and acted as a type 2 adjuvant. By contrast, a soluble Gal10 mutein was inert. Antibodies directed against key epitopes of the CLC crystallization interface dissolved preexisting CLCs in patient-derived mucus within hours and reversed crystal-driven inflammation, goblet-cell metaplasia, immunoglobulin E (IgE) synthesis, and bronchial hyperreactivity (BHR) in a humanized mouse model of asthma. Thus, protein crystals may promote hallmark features of asthma and are targetable by crystal-dissolving antibodies.
分子量: 16632.971 Da / 分子数: 6 / 由来タイプ: 組換発現 詳細: Recombinant human galectin-10-Tyr69Glu was produced with an N-terminal cleavable His-tag (MASTTHHHHHHDTDIPTTGGGSRPDDDDKENLYFQG). The His-tag was removed by TEV-cleavage before crystallization. 由来: (組換発現) Homo sapiens (ヒト) / 遺伝子: CLC, LGALS10, LGALS10A / プラスミド: pET28 / 発現宿主: Escherichia coli BL21(DE3) (大腸菌) / 参照: UniProt: Q05315