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-Structure paper
タイトル | B cell genomics behind cross-neutralization of SARS-CoV-2 variants and SARS-CoV. |
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ジャーナル・号・ページ | Cell, Vol. 184, Issue 12, Page 3205-3221.e24, Year 2021 |
掲載日 | 2021年6月10日 |
著者 | Johannes F Scheid / Christopher O Barnes / Basak Eraslan / Andrew Hudak / Jennifer R Keeffe / Lisa A Cosimi / Eric M Brown / Frauke Muecksch / Yiska Weisblum / Shuting Zhang / Toni Delorey / Ann E Woolley / Fadi Ghantous / Sung-Moo Park / Devan Phillips / Betsabeh Tusi / Kathryn E Huey-Tubman / Alexander A Cohen / Priyanthi N P Gnanapragasam / Kara Rzasa / Theodora Hatziioanno / Michael A Durney / Xiebin Gu / Takuya Tada / Nathaniel R Landau / Anthony P West / Orit Rozenblatt-Rosen / Michael S Seaman / Lindsey R Baden / Daniel B Graham / Jacques Deguine / Paul D Bieniasz / Aviv Regev / Deborah Hung / Pamela J Bjorkman / Ramnik J Xavier / |
PubMed 要旨 | Monoclonal antibodies (mAbs) are a focus in vaccine and therapeutic design to counteract severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) and its variants. Here, we combined B cell ...Monoclonal antibodies (mAbs) are a focus in vaccine and therapeutic design to counteract severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) and its variants. Here, we combined B cell sorting with single-cell VDJ and RNA sequencing (RNA-seq) and mAb structures to characterize B cell responses against SARS-CoV-2. We show that the SARS-CoV-2-specific B cell repertoire consists of transcriptionally distinct B cell populations with cells producing potently neutralizing antibodies (nAbs) localized in two clusters that resemble memory and activated B cells. Cryo-electron microscopy structures of selected nAbs from these two clusters complexed with SARS-CoV-2 spike trimers show recognition of various receptor-binding domain (RBD) epitopes. One of these mAbs, BG10-19, locks the spike trimer in a closed conformation to potently neutralize SARS-CoV-2, the recently arising mutants B.1.1.7 and B.1.351, and SARS-CoV and cross-reacts with heterologous RBDs. Together, our results characterize transcriptional differences among SARS-CoV-2-specific B cells and uncover cross-neutralizing Ab targets that will inform immunogen and therapeutic design against coronaviruses. |
リンク | Cell / PubMed:34015271 / PubMed Central |
手法 | EM (単粒子) / X線回折 |
解像度 | 3.1 - 4.0 Å |
構造データ | EMDB-23693, PDB-7m6e: EMDB-23694, PDB-7m6f: EMDB-23695, PDB-7m6g: EMDB-23696, PDB-7m6h: EMDB-23697, PDB-7m6i: PDB-7m6d: |
化合物 | ChemComp-NAG: |
由来 |
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キーワード | VIRAL PROTEIN/ANTIVIRAL PROTEIN / SARS-CoV-2 / Coronavirus / COVID-19 / antibody / neutralizing antibody / receptor binding domain / spike glycoprotein / ANTIVIRAL PROTEIN / VIRAL PROTEIN-ANTIVIRAL PROTEIN complex |