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-Structure paper
| タイトル | Ultrapotent human antibodies lock E protein dimers central region of diverse DENV3 morphological variants. |
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| ジャーナル・号・ページ | Nat Commun, Vol. 16, Issue 1, Page 9182, Year 2025 |
| 掲載日 | 2025年10月16日 |
著者 | Guntur Fibriansah / Thiam-Seng Ng / Xin-Ni Lim / Anastasia Shebanova / Lee Ching Ng / Song Ling Tan / Aaron W K Tan / Jian Shi / James E Crowe / Shee-Mei Lok / ![]() |
| PubMed 要旨 | Dengue virus (DENV) consists of four serotypes (DENV1-4). Current vaccines induce differing levels of immune response against the four serotypes, that might prime recipients to develop severe disease ...Dengue virus (DENV) consists of four serotypes (DENV1-4). Current vaccines induce differing levels of immune response against the four serotypes, that might prime recipients to develop severe disease in subsequent infections. Several DENV tetravalent vaccine clinical trials suggested an increased incidence in severe DENV3 cases, suggesting a need to develop DENV3 therapeutics. Human monoclonal antibodies (HMAbs) DENV-290 and DENV-115 are ultrapotent against diverse DENV3 strains with differing particle morphologies. They mainly neutralize by inhibition of virus attachment to cells. CryoEM structures of Fabs complexed with differing DENV3 morphological variants show their Fabs binding across two E protein protomers at the center of the E dimer. This new class of E protein dimer binding antibodies is named EDE-C. The cryoEM structures also show how IgGs engage the DENV particles. Results define the structural and molecular basis for the ultrapotent activity of EDE-C antibodies. |
リンク | Nat Commun / PubMed:41102151 / PubMed Central |
| 手法 | EM (単粒子) / EM (らせん対称) |
| 解像度 | 3.3 - 11.0 Å |
| 構造データ | EMDB-36429, PDB-8jn1: EMDB-36430, PDB-8jn2: EMDB-36431, PDB-8jn3: EMDB-36432, PDB-8jn4: EMDB-36433, PDB-8jn5: EMDB-36434, PDB-8jn6: EMDB-36435, PDB-8jn7: ![]() EMDB-36436: Cryo-EM structure of dengue virus serotype 3 strain EHIE46200Y19 in complex with human antibody DENV-115 IgG at 4 deg C ![]() EMDB-36437: Cryo-EM structure of dengue virus serotype 3 strain 863DK in complex with human antibody DENV-115 Fab at 4 deg C ![]() EMDB-36438: Cryo-EM structure of dengue virus serotype 3 strain 863DK in complex with human antibody DENV-115 Fab at 37 deg C ![]() EMDB-36439: Cryo-EM structure of dengue virus serotype 3 strain 863DK in complex with human antibody DENV-290 Fab at 4 deg C ![]() EMDB-36440: Cryo-EM structure of dengue virus serotype 3 strain 863DK in complex with human antibody DENV-290 Fab at 37 deg C ![]() EMDB-36441: Cryo-EM structure of dengue virus serotype 3 strain CH53489 spherical particle in complex with human antibody DENV-290 Fab at 37 deg C |
| 由来 |
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キーワード | VIRUS / dengue virus / human antibody / dengue-antibody structure / VIRUS/IMMUNE SYSTEM / VIRUS-IMMUNE SYSTEM complex |
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homo sapiens (ヒト)
dengue virus type 3 (デング熱ウイルス)
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