8i2g

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FSHR-Follicle stimulating hormone-compound 716340-Gs complexFSHR-Follicle stimulating hormone-compound 716340-Gs complex

Structural highlights

8i2g is a 7 chain structure with sequence from Cricetulus griseus, Homo sapiens and Lama glama. Full crystallographic information is available from OCA. For a guided tour on the structure components use FirstGlance.
Method:Electron Microscopy, Resolution 2.8Å
Ligands:, , , ,
Resources:FirstGlance, OCA, PDBe, RCSB, PDBsum, ProSAT

Disease

GNAS1_HUMAN The disease is caused by variants affecting the gene represented in this entry. The disease is caused by variants affecting the gene represented in this entry. The disease is caused by variants affecting the gene represented in this entry. Most affected individuals have defects in methylation of the gene. In some cases microdeletions involving the STX16 appear to cause loss of methylation at exon A/B of GNAS, resulting in PHP1B. Paternal uniparental isodisomy have also been observed. The disease is caused by variants affecting the gene represented in this entry.

Function

GNAS1_HUMAN Guanine nucleotide-binding proteins (G proteins) function as transducers in numerous signaling pathways controlled by G protein-coupled receptors (GPCRs). Signaling involves the activation of adenylyl cyclases, resulting in increased levels of the signaling molecule cAMP. GNAS functions downstream of several GPCRs, including beta-adrenergic receptors. XLas isoforms interact with the same set of receptors as GNAS isoforms (By similarity).[UniProtKB:Q6R0H7]GNAS_CRIGR Guanine nucleotide-binding proteins (G proteins) function as transducers in numerous signaling pathways controlled by G protein-coupled receptors (GPCRs). Signaling involves the activation of adenylyl cyclases, resulting in increased levels of the signaling molecule cAMP. GNAS functions downstream of several GPCRs, including beta-adrenergic receptors. Stimulates the Ras signaling pathway via RAPGEF2.[UniProtKB:P63092]

Publication Abstract from PubMed

Follicle stimulating hormone (FSH) is an essential glycoprotein hormone for human reproduction, which functions are mediated by a G protein-coupled receptor, FSHR. Aberrant FSH-FSHR signaling causes infertility and ovarian hyperstimulation syndrome. Here we report cryo-EM structures of FSHR in both inactive and active states, with the active structure bound to FSH and an allosteric agonist compound 21 f. The structures of FSHR are similar to other glycoprotein hormone receptors, highlighting a conserved activation mechanism of hormone-induced receptor activation. Compound 21 f formed extensive interactions with the TMD to directly activate FSHR. Importantly, the unique residue H615(7.42) in FSHR plays an essential role in determining FSHR selectivity for various allosteric agonists. Together, our structures provide a molecular basis of FSH and small allosteric agonist-mediated FSHR activation, which could inspire the design of FSHR-targeted drugs for the treatment of infertility and controlled ovarian stimulation for in vitro fertilization.

Mechanism of hormone and allosteric agonist mediated activation of follicle stimulating hormone receptor.,Duan J, Xu P, Zhang H, Luan X, Yang J, He X, Mao C, Shen DD, Ji Y, Cheng X, Jiang H, Jiang Y, Zhang S, Zhang Y, Xu HE Nat Commun. 2023 Jan 31;14(1):519. doi: 10.1038/s41467-023-36170-3. PMID:36720854[1]

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine.

See Also

References

  1. Duan J, Xu P, Zhang H, Luan X, Yang J, He X, Mao C, Shen DD, Ji Y, Cheng X, Jiang H, Jiang Y, Zhang S, Zhang Y, Xu HE. Mechanism of hormone and allosteric agonist mediated activation of follicle stimulating hormone receptor. Nat Commun. 2023 Jan 31;14(1):519. PMID:36720854 doi:10.1038/s41467-023-36170-3

8i2g, resolution 2.80Å

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OCA