Length-independent structural similarities enrich the antibody CDR canonical class model

Complementarity-determining regions (CDRs) are antibody loops that make up the antigen binding site. Here, we show that all CDR types have structurally similar loops of different lengths. Based on these findings, we created length-independent canonical classes for the non-H3 CDRs. Our length variabl...

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Päätekijät: Nowak, J, Baker, T, Georges, G, Kelm, S, Klostermann, S, Shi, J, Sridharan, S, Deane, C
Aineistotyyppi: Journal article
Kieli:English
Julkaistu: Taylor and Francis 2016
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author Nowak, J
Baker, T
Georges, G
Kelm, S
Klostermann, S
Shi, J
Sridharan, S
Deane, C
author_facet Nowak, J
Baker, T
Georges, G
Kelm, S
Klostermann, S
Shi, J
Sridharan, S
Deane, C
author_sort Nowak, J
collection OXFORD
description Complementarity-determining regions (CDRs) are antibody loops that make up the antigen binding site. Here, we show that all CDR types have structurally similar loops of different lengths. Based on these findings, we created length-independent canonical classes for the non-H3 CDRs. Our length variable structural clusters show strong sequence patterns suggesting either that they evolved from the same original structure or result from some form of convergence. We find that our length-independent method not only clusters a larger number of CDRs, but also predicts canonical class from sequence better than the standard length-dependent approach. To demonstrate the usefulness of our findings, we predicted cluster membership of CDR-L3 sequences from three next-generation sequencing datasets of the antibody repertoire (over 1,000,000 sequences). Using the length-independent clusters, we can structurally classify an additional 135,000 sequences, which represents an ˜20% improvement over the standard approach. This suggests that our length-independent canonical classes might be a highly prevalent feature of antibody space, and could substantially improve our ability to accurately predict the structure of novel CDRs identified by next-generation sequencing.
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spelling oxford-uuid:8a39190c-562d-4211-a89b-be02cb41d0ec2022-03-26T22:30:11ZLength-independent structural similarities enrich the antibody CDR canonical class modelJournal articlehttp://purl.org/coar/resource_type/c_dcae04bcuuid:8a39190c-562d-4211-a89b-be02cb41d0ecEnglishSymplectic Elements at OxfordTaylor and Francis2016Nowak, JBaker, TGeorges, GKelm, SKlostermann, SShi, JSridharan, SDeane, CComplementarity-determining regions (CDRs) are antibody loops that make up the antigen binding site. Here, we show that all CDR types have structurally similar loops of different lengths. Based on these findings, we created length-independent canonical classes for the non-H3 CDRs. Our length variable structural clusters show strong sequence patterns suggesting either that they evolved from the same original structure or result from some form of convergence. We find that our length-independent method not only clusters a larger number of CDRs, but also predicts canonical class from sequence better than the standard length-dependent approach. To demonstrate the usefulness of our findings, we predicted cluster membership of CDR-L3 sequences from three next-generation sequencing datasets of the antibody repertoire (over 1,000,000 sequences). Using the length-independent clusters, we can structurally classify an additional 135,000 sequences, which represents an ˜20% improvement over the standard approach. This suggests that our length-independent canonical classes might be a highly prevalent feature of antibody space, and could substantially improve our ability to accurately predict the structure of novel CDRs identified by next-generation sequencing.
spellingShingle Nowak, J
Baker, T
Georges, G
Kelm, S
Klostermann, S
Shi, J
Sridharan, S
Deane, C
Length-independent structural similarities enrich the antibody CDR canonical class model
title Length-independent structural similarities enrich the antibody CDR canonical class model
title_full Length-independent structural similarities enrich the antibody CDR canonical class model
title_fullStr Length-independent structural similarities enrich the antibody CDR canonical class model
title_full_unstemmed Length-independent structural similarities enrich the antibody CDR canonical class model
title_short Length-independent structural similarities enrich the antibody CDR canonical class model
title_sort length independent structural similarities enrich the antibody cdr canonical class model
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AT bakert lengthindependentstructuralsimilaritiesenrichtheantibodycdrcanonicalclassmodel
AT georgesg lengthindependentstructuralsimilaritiesenrichtheantibodycdrcanonicalclassmodel
AT kelms lengthindependentstructuralsimilaritiesenrichtheantibodycdrcanonicalclassmodel
AT klostermanns lengthindependentstructuralsimilaritiesenrichtheantibodycdrcanonicalclassmodel
AT shij lengthindependentstructuralsimilaritiesenrichtheantibodycdrcanonicalclassmodel
AT sridharans lengthindependentstructuralsimilaritiesenrichtheantibodycdrcanonicalclassmodel
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