ArticleCell reports2025
Clonotype-enriched somatic hypermutations drive affinity maturation of a public human antibody targeting an occluded sarbecovirus epitope.
Article in Cell reports, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 6 papers.
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Who cites it
6 citing papers in PubMed.
- Structural basis of diverse antibody recognition of conserved coronavirus spike S2 epitopes that contribute to protective immunity.bioRxiv : the preprint server for biology · 2026Article
- The buried S2 apex of SARS-CoV-2 spike elicits an immunodominant germline-restricted public antibody response.bioRxiv : the preprint server for biology · 2026Article
- Affinity maturation and light-chain-mediated paratope diversification anticipates viral evolution.Cell reports · 2026Article
- Profiling of porcine B-cell receptor heavy-chain repertoires indicates the development of a wide public pseudorabies virus-specific immune response after vaccination and challenge.Discovery immunology · 2026Article
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Abstract
Investigating public antibodies that recognize conserved epitopes is critical for vaccine development. Identifying somatic hypermutations (SHMs) that enhance antigen affinity in these public antibodies is key to guiding vaccine design for better protection against pathogens. We propose that affinity-enhancing SHMs are selectively enriched in public antibody clonotypes, surpassing the background frequency seen in antibodies carrying the same V genes but with different epitope specificities. Using M15, a human IGHV4-59/IGKV3-20 public antibody as a model, we compare SHM signatures in antibodies that use the same V genes but recognize other epitopes. We identified clonotype-enriched mutations in the light chain of M15 and showed that, in combination, these SHMs enhance binding to a previously uncharacterized Sarbecovirus epitope, with antibody responses to it increasing after sequential vaccination. Our findings identify convergence and clonotype enrichment as features of affinity-enhancing SHMs in public antibodies, which can help guide vaccine design aimed at eliciting such antibodies.
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