Diversity in the CDR3 Region of VH Is Sufficient for Most Antibody Specificities
Open accessAbstract
All rearranging antigen receptor genes have one or two highly diverse complementarity determining regions (CDRs) among the six that typically form the ligand binding surface. We report here that, in the case of antibodies, diversity at one of these regions, CDR3 of the V(H) domain, is sufficient to permit otherwise identical IgM molecules to distinguish between a variety of hapten and protein antigens. Furthermore, we find that somatic mutation can allow such antibodies to achieve surprisingly high affinities. These results are consistent with a model in which the highly diverse CDR3 loops are the key determinant of specificity in antigen recognition in both T cell receptors (TCR) and antibodies, whereas the germline-encoded CDR1 and CDR2 sequences are much more cross-reactive.
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CDRH3 is very important for antigen recognition.
“CDRH3 possesses the highest sequence and structural diversity of the six CDRs [33] and is very important for antigen recognition [34, 35].”
From Computational approaches to therapeutic antibody design: established methods and emerging trends (2020) · cites this paper as [35]
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- Authors
- Xu, J. L., & Davis, M. M.
- Affiliations
- Stanford Medicine (US)
- Howard Hughes Medical Institute (US)
- Corresponding author
- Davis, Mark M
- ORCID
- Davis, Mark M
- Venue
- Immunity
- Publisher
- Elsevier BV
- Published
- 2000-07
- Volume
- 13
- Issue
- 1
- Pages
- 37-45
- ISSN
- 1074-7613 (ISSN-L)
- OpenAlex
- W2091477384
- Cited by
- 779
- References
- 81
- Citations by year
- 2026: 25 · 2025: 43 · 2024: 61 · 2023: 41 · 2022: 47 · 2021: 47 · 2020: 42 · 2019: 44 · 2018: 38 · 2017: 49 · 2016: 29 · 2015: 37 · 2014: 26 · 2013: 17 · 2012: 31
- FWCI
- 10.37
- Type
- journal article
- Language
- en
- Open access
- bronze
- doi.org
- Licence
- Locations
- Immunity (publishedVersion)
- PubMed (publishedVersion)
- Topics
- Health Sciences › Medicine › Radiology, Nuclear Medicine and Imaging › Monoclonal and Polyclonal Antibodies Research
- Life Sciences › Immunology and Microbiology › Immunology › T-cell and B-cell Immunology
- Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › vaccines and immunoinformatics approaches
- Keywords
- CDR3 diversity, antibody specificity, somatic hypermutation, antigen recognition, hapten binding, IgM, T cell receptor diversity, antibody affinity
- MeSH terms
- Amino Acid Sequence, Animals, Antibody Affinity, Antibody Diversity, Antibody Specificity, Antigens, Dextrans, Haptens, Hemocyanins, Humans, Immunoglobulin G, Immunoglobulin M, Immunoglobulin Variable Region, Immunoglobulin Heavy Chains, Immunoglobulin kappa-Chains, Mice, Inbred C57BL, Mice, Transgenic, Molecular Sequence Data, Ovalbumin, Polysaccharides, Bacterial, Sequence Analysis, Complementarity Determining Regions, Mice
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