Integrative model of the FSH receptor reveals the structural role of the flexible hinge region.
Structure
; 30(10): 1424-1431.e3, 2022 10 06.
Article
em En
| MEDLINE
| ID: mdl-35973423
ABSTRACT
The follicle-stimulating hormone receptor (FSHR) belongs to the glycoprotein hormone receptors, a subfamily of G-protein-coupled receptors (GPCRs). FSHR is involved in reproductive processes such as gonadal development and maturation. Structurally, the extensive extracellular domain, which contains the hormone-binding site and is linked to the transmembrane domain by the hinge region (HR), is characteristic for these receptors. How this HR is involved in hormone binding and signal transduction is still an open question. We combined in vitro and in situ chemical crosslinking, disulfide pattern analysis, and mutation data with molecular modeling to generate experimentally driven full-length models. These models provide insights into the interface, important side-chain interactions, and activation mechanism. The interface indicates a strong involvement of the connecting loop. A major rearrangement of the HR seems implausible due to the tight arrangement and fixation by disulfide bonds. The models are expected to allow for testable hypotheses about signal transduction and drug development for GPHRs.
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Texto completo:
1
Coleções:
01-internacional
Base de dados:
MEDLINE
Assunto principal:
Receptores do FSH
/
Hormônio Foliculoestimulante
Tipo de estudo:
Prognostic_studies
Idioma:
En
Revista:
Structure
Ano de publicação:
2022
Tipo de documento:
Article