Evidence map›Paper›PMID 22160929›Full record

ArticleProtein engineering, design & selection : PEDS2012

High-level secretion of recombinant monomeric murine and human single-chain Fv antibodies from Drosophila S2 cells.

Allissia A Gilmartin, Benjamin Lamp, Till Rümenapf, Mats A A Persson, Félix A Rey, Thomas Krey

Abstract read
In one paragraph

Article in Protein engineering, design & selection : PEDS, 2012. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 32 papers.

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0cells of the map it votes in
32citing papers in PubMed
–field-weighted citation impact
1 · What the graph read from it

What it found

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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

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3 · Its place in the literature

Who cites it

32 citing papers in PubMed.

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  20. Novel Pestivirus Species in Pigs, Austria, 2015.Emerging infectious diseases · 2017
    Article
4 · The record

Corrections and comments

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5 · Who and what money

Authors and funding

6 authors.

Allissia A GilmartinDépartment de Virologie, Institut Pasteur, Unité de Virologie Structurale, CNRS URA 3015, Paris, France.
Benjamin Lamp
Till Rümenapf
Mats A A Persson
Félix A Rey
Thomas Krey

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Single-chain variable fragment (scFvs) antibodies are small polypeptides (∼26 kD) containing the heavy (V(H)) and light (V(L)) immunoglobulin domains of a parent antibody connected by a flexible linker. In addition to being frequently used in diagnostics and therapy for an increasing number of human diseases, scFvs are important tools for structural biology as crystallization chaperones. Although scFvs can be expressed in many different organisms, the expression level of an scFv strongly depends on its particular amino acid sequence. We report here a system allowing for easy and efficient cloning of (i) scFvs selected by phage display and (ii) individual heavy and light chain sequences from hybridoma cDNA into expression plasmids engineered for secretion of the recombinant fragment produced in Drosophila S2 cells. We validated the method by producing five scFvs derived from human and murine parent antibodies directed against various antigens. The production yields varied between 5 and 12 mg monomeric scFv per liter of supernatant, indicating a relative independence on the individual sequences. The recombinant scFvs bound their cognate antigen with high affinity, comparable with the parent antibodies. The suitability of the produced recombinant fragments for structural studies was demonstrated by crystallization and structure determination of one of the produced scFvs, derived from a broadly neutralizing antibody against the major glycoprotein E2 of the hepatitis C virus. Structural comparison with the Protein Data Bank revealed the typical spatial organization of V(H) and V(L) domains, further validating the here-reported expression system.

Indexed as

Amino Acid SequenceAnimalsCell LineCloning, MolecularCrystallizationDrosophilaHumansMiceMolecular Sequence DataPeptide LibraryProtein EngineeringRecombinant Fusion ProteinsSequence AlignmentSingle-Chain AntibodiesViral Envelope Proteinsglycoprotein E2, Hepatitis C virusPeptide LibraryRecombinant Fusion ProteinsSingle-Chain AntibodiesViral Envelope Proteins

Identifiers

PMID22160929
PMCPMC3258843

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Registered trials

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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.