Multivalent binding kinetics resolved by fluorescence proximity sensing.
Journal
Communications biology
ISSN: 2399-3642
Titre abrégé: Commun Biol
Pays: England
ID NLM: 101719179
Informations de publication
Date de publication:
07 10 2022
07 10 2022
Historique:
received:
06
04
2022
accepted:
14
09
2022
entrez:
7
10
2022
pubmed:
8
10
2022
medline:
12
10
2022
Statut:
epublish
Résumé
Multivalent protein interactors are an attractive modality for probing protein function and exploring novel pharmaceutical strategies. The throughput and precision of state-of-the-art methodologies and workflows for the effective development of multivalent binders is currently limited by surface immobilization, fluorescent labelling and sample consumption. Using the gephyrin protein, the master regulator of the inhibitory synapse, as benchmark, we exemplify the application of Fluorescence proximity sensing (FPS) for the systematic kinetic and thermodynamic optimization of multivalent peptide architectures. High throughput synthesis of +100 peptides with varying combinatorial dimeric, tetrameric, and octameric architectures combined with direct FPS measurements resolved on-rates, off-rates, and dissociation constants with high accuracy and low sample consumption compared to three complementary technologies. The dataset and its machine learning-based analysis deciphered the relationship of specific architectural features and binding kinetics and thereby identified binders with unprecedented protein inhibition capacity; thus, highlighting the value of FPS for the rational engineering of multivalent inhibitors.
Identifiants
pubmed: 36207490
doi: 10.1038/s42003-022-03997-3
pii: 10.1038/s42003-022-03997-3
pmc: PMC9546861
doi:
Substances chimiques
Peptides
0
Pharmaceutical Preparations
0
Types de publication
Journal Article
Research Support, Non-U.S. Gov't
Langues
eng
Sous-ensembles de citation
IM
Pagination
1070Informations de copyright
© 2022. The Author(s).
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