Evidence map›Paper›PMID 26515064›Full record

ArticleThe Journal of biological chemistry2016

A Combination of Structural and Empirical Analyses Delineates the Key Contacts Mediating Stability and Affinity Increases in an Optimized Biotherapeutic Single-chain Fv (scFv).

Chao Tu, Virginie Terraube, Amy Sze Pui Tam, Wayne Stochaj, Brian J Fennell, Laura Lin, Mark Stahl, Edward R LaVallie, Will Somers, William J J Finlay and 3 more

Open access · hybridAbstract readComparative Study
In one paragraph

Article in The Journal of biological chemistry, 2016. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 15 papers.

0numbers the graph read from it
0cells of the map it votes in
15citing papers in PubMed
1.4field-weighted citation impact, top 19% of its field
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

15 citing papers in PubMed, 24 citations in OpenAlex.

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  7. Toward Drug-Like Multispecific Antibodies by Design.International journal of molecular sciences · 2020
    Review
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4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

13 authors at 2 institutions in 2 countries.

Chao TuFrom Global Biotherapeutics Technologies, Pfizer R&D, Cambridge, Massachusetts 02140 and.
Virginie TerraubeGlobal Biotherapeutics Technologies, Pfizer R&D, Grange Castle Business Park, Dublin D22, Ireland.
Amy Sze Pui TamFrom Global Biotherapeutics Technologies, Pfizer R&D, Cambridge, Massachusetts 02140 and.
Wayne StochajFrom Global Biotherapeutics Technologies, Pfizer R&D, Cambridge, Massachusetts 02140 and.
Brian J FennellGlobal Biotherapeutics Technologies, Pfizer R&D, Grange Castle Business Park, Dublin D22, Ireland.
Laura LinFrom Global Biotherapeutics Technologies, Pfizer R&D, Cambridge, Massachusetts 02140 and.
Mark StahlFrom Global Biotherapeutics Technologies, Pfizer R&D, Cambridge, Massachusetts 02140 and.
Edward R LaVallieFrom Global Biotherapeutics Technologies, Pfizer R&D, Cambridge, Massachusetts 02140 and.
Will SomersFrom Global Biotherapeutics Technologies, Pfizer R&D, Cambridge, Massachusetts 02140 and.
William J J FinlayGlobal Biotherapeutics Technologies, Pfizer R&D, Grange Castle Business Park, Dublin D22, Ireland.
Lydia MosyakFrom Global Biotherapeutics Technologies, Pfizer R&D, Cambridge, Massachusetts 02140 and.
Joel BardFrom Global Biotherapeutics Technologies, Pfizer R&D, Cambridge, Massachusetts 02140 and joel.bard@pfizer.com.
Orla CunninghamGlobal Biotherapeutics Technologies, Pfizer R&D, Grange Castle Business Park, Dublin D22, Ireland orla.cunningham@pfizer.com.
Pfizer (United States) · USPfizer (Ireland) · IE

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Fully-human single-chain Fv (scFv) proteins are key potential building blocks of bispecific therapeutic antibodies, but they often suffer from manufacturability and clinical development limitations such as instability and aggregation. The causes of these scFv instability problems, in proteins that should be theoretically stable, remains poorly understood. To inform the future development of such molecules, we carried out a comprehensive structural analysis of the highly stabilized anti-CXCL13 scFv E10. E10 was derived from the parental 3B4 using complementarity-determining region (CDR)-restricted mutagenesis and tailored selection and screening strategies, and carries four mutations in VL-CDR3. High-resolution crystal structures of parental 3B4 and optimized E10 scFvs were solved in the presence and absence of human CXCL13. In parallel, a series of scFv mutants was generated to interrogate the individual contribution of each of the four mutations to stability and affinity improvements. In combination, these analyses demonstrated that the optimization of E10 was primarily mediated by removing clashes between both the VL and the VH, and between the VL and CXCL13. Importantly, a single, germline-encoded VL-CDR3 residue mediated the key difference between the stable and unstable forms of the scFv. This work demonstrates that, aside from being the critical mediators of specificity and affinity, CDRs may also be the primary drivers of biotherapeutic developability.

Indexed as

Models, MolecularAmino Acid SubstitutionAntibody AffinityAntibody SpecificityAntigen-Antibody ComplexBinding Sites, AntibodyBiological ProductsChemokine CXCL13Complementarity Determining RegionsHumansKineticsMutationProtein AggregatesProtein ConformationProtein StabilityRecombinant Fusion ProteinsAntigen-Antibody ComplexBiological ProductsChemokine CXCL13Complementarity Determining RegionsCXCL13 protein, humanProtein AggregatesRecombinant Fusion ProteinsRecombinant ProteinsSingle-Chain Antibodiesantibody engineeringchemokinecrystal structuremutagenesis in vitroprotein stability

Identifiers

PMID26515064
PMCPMC4714214
OpenAlexW2235519817

What OpenQuestion holds

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Registered trials

None linked

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.