ArticleJournal of molecular modeling2019
Structure-based exploration of an allosteric binding pocket in the NTS1 receptor using bitopic NT(8-13) derivatives and molecular dynamics simulations.
Article in Journal of molecular modeling, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 2 papers.
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Who cites it
2 citing papers in PubMed, 4 citations in OpenAlex.
- Toward Stability Enhancement of NTSPharmaceutics · 2023Article
- The Impact of the Secondary Binding Pocket on the Pharmacology of Class A GPCRs.Frontiers in pharmacology · 2022Review
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Authors and funding
5 authors at 1 institution in 1 country.
Funding
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Abstract
Crystal structures of neurotensin receptor subtype 1 (NTS1) allowed us to visualize the binding mode of the endogenous peptide hormone neurotensin and its pharmacologically active C-terminal fragment NT(8-13) within the orthosteric binding pocket of NTS1. Beneath the orthosteric binding pocket, we detected a cavity that exhibits different sequences in the neurotensin receptor subtypes NTS1 and NTS2. In this study, we explored this allosteric binding pocket using bitopic test peptides of type NT(8-13)-Xaa, in which the C-terminal part of NT(8-13) is connected to different amino acids that extend into the newly discovered pocket. Our test compounds showed nanomolar affinities for NTS1, a measurable increase in subtype selectivity compared to the parent peptide NT(8-13), and the capacity to activate the receptor in an IP accumulation assay. Computational investigation of the selected test compounds at NTS1 showed a conserved binding mode within the orthosteric binding pocket, whereas the allosteric cavity was able to adapt to different residues, which suggests a high degree of structural plasticity within that cavity of NTS1.
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