Cited by 779Monoclonal and Polyclonal Antibodies ResearchT-cell and B-cell Immunologyvaccines and immunoinformatics approaches

Diversity in the CDR3 Region of VH Is Sufficient for Most Antibody Specificities

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Xu, John L, Davis, Mark M·2000·Immunity

Abstract

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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Crossref · 10.1016/s1074-7613(00)00006-6

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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
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
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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