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- W3161211704 endingPage "e1008593" @default.
- W3161211704 startingPage "e1008593" @default.
- W3161211704 abstract "The dynamic interactions between G protein-coupled receptors (GPCRs) and their cognate protein partners are central to several cell signaling pathways. For example, the association of CXC chemokine receptor 1 (CXCR1) with its cognate chemokine, interleukin-8 (IL8 or CXCL8) initiates pathways leading to neutrophil-mediated immune responses. The N-terminal domain of chemokine receptors confers ligand selectivity, but unfortunately the conformational dynamics of this intrinsically disordered region remains unresolved. In this work, we have explored the interaction of CXCR1 with IL8 by microsecond time scale coarse-grain simulations, complemented by atomistic models and NMR chemical shift predictions. We show that the conformational plasticity of the apo -receptor N-terminal domain is restricted upon ligand binding, driving it to an open C-shaped conformation. Importantly, we corroborated the dynamic complex sampled in our simulations against chemical shift perturbations reported by previous NMR studies and show that the trends are similar. Our results indicate that chemical shift perturbation is often not a reporter of residue contacts in such dynamic associations. We believe our results represent a step forward in devising a strategy to understand intrinsically disordered regions in GPCRs and how they acquire functionally important conformational ensembles in dynamic protein-protein interfaces." @default.
- W3161211704 created "2021-05-24" @default.
- W3161211704 creator A5024022206 @default.
- W3161211704 creator A5029713912 @default.
- W3161211704 creator A5045119784 @default.
- W3161211704 creator A5063835467 @default.
- W3161211704 date "2021-05-20" @default.
- W3161211704 modified "2023-10-16" @default.
- W3161211704 title "Conformational plasticity and dynamic interactions of the N-terminal domain of the chemokine receptor CXCR1" @default.
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- W3161211704 doi "https://doi.org/10.1371/journal.pcbi.1008593" @default.
- W3161211704 hasPubMedCentralId "https://www.ncbi.nlm.nih.gov/pmc/articles/8172051" @default.
- W3161211704 hasPubMedId "https://pubmed.ncbi.nlm.nih.gov/34014914" @default.
- W3161211704 hasPublicationYear "2021" @default.
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