Evidence map›Paper›PMID 37942319›Full record

ArticleFrontiers in immunology2023

Cattle-derived knob paratopes grafted onto peripheral loops of the IgG1 Fc region enable the generation of a novel symmetric bispecific antibody format.

Desislava Yanakieva, Lena Vollmer, Andreas Evers, Vanessa Siegmund, Paul Arras, Lukas Pekar, Achim Doerner, Bernhard Valldorf, Harald Kolmar, Stefan Zielonka and 1 more

Abstract read
In one paragraph

Article in Frontiers in immunology, 2023. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 4 papers.

0numbers the graph read from it
0cells of the map it votes in
4citing papers in PubMed
–field-weighted citation impact
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

4 citing papers in PubMed.

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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

11 authors.

Desislava Yanakieva *Antibody Discovery and Protein Engineering, Merck Healthcare KGaA, Darmstadt, Germany.
Lena Vollmer *Antibody Discovery and Protein Engineering, Merck Healthcare KGaA, Darmstadt, Germany.
Andreas EversAntibody Discovery and Protein Engineering, Merck Healthcare KGaA, Darmstadt, Germany.
Vanessa SiegmundEarly Protein Supply and Characterization, Merck Healthcare KGaA, Darmstadt, Germany.
Paul ArrasAntibody Discovery and Protein Engineering, Merck Healthcare KGaA, Darmstadt, Germany.
Lukas PekarAntibody Discovery and Protein Engineering, Merck Healthcare KGaA, Darmstadt, Germany.
Achim DoernerAntibody Discovery and Protein Engineering, Merck Healthcare KGaA, Darmstadt, Germany.
Bernhard ValldorfTargeted mRNA Delivery, Merck KGaA, Darmstadt, Germany.
Harald KolmarInstitute for Organic Chemistry and Biochemistry, Technische Universität Darmstadt, Darmstadt, Germany.
Stefan ZielonkaAntibody Discovery and Protein Engineering, Merck Healthcare KGaA, Darmstadt, Germany.
Simon KrahAntibody Discovery and Protein Engineering, Merck Healthcare KGaA, Darmstadt, Germany.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

In this work we present a novel symmetric bispecific antibody format based on engraftments of cattle-derived knob paratopes onto peripheral loops of the IgG1 Fc region. For this, knob architectures obtained from bovine ultralong CDR-H3 antibodies were inserted into the AB loop or EF loop of the CH3 domain, enabling the introduction of an artificial binding specificity into an IgG molecule. We demonstrate that inserted knob domains largely retain their binding affinities, resulting into bispecific antibody derivatives versatile for effector cell redirection. Essentially, generated bispecifics demonstrated adequate biophysical properties and were not compromised in their Fc mediated functionalities such as FcRn or FcγRIIIa binding.

Indexed as

Antibodies, BispecificImmunoglobulin GAnimalsBinding Sites, AntibodyCattleAntibodies, BispecificImmunoglobulin GAB loopantibody displayantibody engineeringcattle antibodyCH3EF loopultralong CDR3yeast surface display

Identifiers

PMID37942319
PMCPMC10628450

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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.