+検索条件
-Structure paper
| タイトル | Mapping essential somatic hypermutations in a CD4-binding site bNAb informs HIV-1 vaccine design. |
|---|---|
| ジャーナル・号・ページ | Cell Rep, Vol. 44, Issue 5, Page 115713, Year 2025 |
| 掲載日 | 2025年5月15日 |
著者 | Kim-Marie A Dam / Harry B Gristick / Yancheng E Li / Zhi Yang / Priyanthi N P Gnanapragasam / Anthony P West / Michael S Seaman / Pamela J Bjorkman / ![]() |
| PubMed 要旨 | HIV-1 broadly neutralizing antibodies (bNAbs) targeting the CD4-binding site (CD4bs) contain rare features that pose challenges to elicit these bNAbs through vaccination. The IOMA class of CD4bs ...HIV-1 broadly neutralizing antibodies (bNAbs) targeting the CD4-binding site (CD4bs) contain rare features that pose challenges to elicit these bNAbs through vaccination. The IOMA class of CD4bs bNAbs includes fewer rare features and somatic hypermutations (SHMs) to achieve broad neutralization, thus presenting a potentially accessible pathway for vaccine-induced bNAb development. Here, we created a library of IOMA variants in which each SHM was individually reverted to the inferred germline counterpart to investigate the roles of SHMs in conferring IOMA's neutralization potency and breadth. Impacts on neutralization for each variant were evaluated, and this information was used to design minimally mutated IOMA-class variants (IOMAmin) that incorporated the fewest SHMs required for achieving IOMA's neutralization breadth. A cryoelectron microscopy (cryo-EM) structure of an IOMAmin variant bound to Env was used to further interpret characteristics of IOMA variants to elucidate how IOMA's structural features correlate with its neutralization mechanism, informing the design of IOMA-targeting immunogens. |
リンク | Cell Rep / PubMed:40378041 / PubMed Central |
| 手法 | EM (単粒子) |
| 解像度 | 3.9 - 4.2 Å |
| 構造データ | EMDB-48059, PDB-9ehl: EMDB-48060, PDB-9ehm: |
| 化合物 | ![]() ChemComp-NAG: |
| 由来 |
|
キーワード | VIRAL PROTEIN/IMMUNE SYSTEM / HIV-1 / Env / bNAb / VIRAL PROTEIN-IMMUNE SYSTEM complex |
ムービー
コントローラー
構造ビューア
万見文献について



著者
リンク





human immunodeficiency virus 1 (ヒト免疫不全ウイルス)
homo sapiens (ヒト)
キーワード