8t8m | pdb_00008t8m

Quis-bound intermediate mGlu5

spinqualitylabelsall models 8t8m, resolution 3.00Å Show:Asymmetric Unit Biological Assembly Drag the structure with the mouse to rotate   Export Animated Image   Print3D Structural highlights 8t8m is a 4 chain structure with sequence from 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 3Å Ligands: QUS Resources: FirstGlance, OCA, PDBe, RCSB, PDBsum, ProSAT Function GRM5_HUMAN Receptor for glutamate. The activity of this receptor is mediated by a G-protein that activates a phosphatidylinositol-calcium second messenger system and generates a calcium-activated chloride current. Publication Abstract from PubMed Metabotropic glutamate receptors belong to a family of G protein-coupled receptors that are obligate dimers and possess a large extracellular ligand-binding domain (ECD) that is linked via a cysteine-rich domain (CRDs) to their 7-transmembrane (TM) domain. Upon activation, these receptors undergo a large conformational change to transmit the ligand binding signal from the ECD to the G protein-coupling TM. In this manuscript, we propose a model for a sequential, multistep activation mechanism of metabotropic glutamate receptor subtype 5. We present a series of structures in lipid nanodiscs, from inactive to fully active, including agonist-bound intermediate states. Further, using bulk and single-molecule fluorescence imaging we reveal distinct receptor conformations upon allosteric modulator and G protein binding. Step-wise activation of a Family C GPCR.,Kumar KK, Wang H, Habrian C, Latorraca NR, Xu J, O'Brien ES, Zhang C, Montabana E, Koehl A, Marqusee S, Isacoff EY, Kobilka BK bioRxiv. 2023 Aug 30:2023.08.29.555158. doi: 10.1101/2023.08.29.555158. Preprint. PMID:37693614 From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine.

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