Cited by 99Monoclonal and Polyclonal Antibodies Researchvaccines and immunoinformatics approachesProtein Structure and Dynamics

Analyzing the ‘Degree of Humanness’ of antibody sequences

Abhinandan, K.R., Martin, Andrew C.R.·2007·Journal of Molecular Biology

Abstract

Genetically engineered mouse antibodies are now commonly in clinical use. However, their development is limited because the human immune system tends to regard them as foreign and this triggers an immune response. The solution is to make engineered antibodies appear more human. Here, we propose a method to assess the "degree of humanness" of antibody sequences providing a tool that may contribute to predictions of antigenicity. We analyzed sequences of antibodies belonging to various chains/classes in human and mouse. Our analysis of metrics based on percentage sequence identity between antibody sequences shows distinct differences between human and mouse sequences. Based on mean sequence identity and standard deviation, we calculated Z-scores for data sets of antibody sequences extracted from the Kabat database. We applied the analysis to a set of humanized and chimeric antibodies and to human germline sequences. We conclude that this approach may aid in the selection of more suitable mouse variable domains for antibody engineering to render them more human but in general, we find that typicality of a sequence compared with the expressed human repertoire is not well correlated with antigenicity. We have provided a Web server allowing humanness to be assigned for a sequence.

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Crossref · 10.1016/j.jmb.2007.02.100

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Authors
Abhinandan, K. R., & Martin, A. C. R.
Affiliations
University College London (GB)
Corresponding author
Martin, Andrew C.R.
Venue
Journal of Molecular Biology
Publisher
Elsevier BV
Published
2007-06
Volume
369
Issue
3
Pages
852-862
ISSN
0022-2836 (ISSN-L)
OpenAlex
W2037914743
Cited by
99
References
33
Citations by year
2026: 4 · 2025: 9 · 2024: 10 · 2023: 4 · 2022: 7 · 2021: 5 · 2020: 8 · 2019: 4 · 2018: 6 · 2017: 4 · 2016: 5 · 2015: 7 · 2014: 8 · 2013: 3 · 2012: 2
FWCI
2.25
Type
journal article
Language
en
Open access
closed
Locations
  • Journal of Molecular Biology (publishedVersion)
  • PubMed (publishedVersion)
  • UCL Discovery (University College London) (submittedVersion)
Topics
  • Health Sciences › Medicine › Radiology, Nuclear Medicine and Imaging › Monoclonal and Polyclonal Antibodies Research
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › vaccines and immunoinformatics approaches
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Protein Structure and Dynamics
Keywords
genetically engineered antibodies, humanized monoclonal antibody, chimeric antibodies, sequence identity, variable domains, antigenicity prediction, human-mouse comparison, web server
MeSH terms
Animals, Antibodies, Antibodies, Monoclonal, Antibody Specificity, Humans, Immunoglobulin Variable Region, Immunosuppressive Agents, Species Specificity, Protein Engineering, Models, Statistical, Protein Structure, Tertiary, Mice

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