7v6y

Cryo-EM structure of Patched in lipid nanodisc - the wildtype, 3.5 angstrom (re-processed with dataset of 7dzq)

spinqualitylabelsall models 7v6y, resolution 3.50Å Show:Asymmetric Unit Biological Assembly Drag the structure with the mouse to rotate   Export Animated Image   Print3D Structural highlights Full crystallographic information is available from OCA. For a guided tour on the structure components use FirstGlance. Method: Electron Microscopy, Resolution 3.5Å Ligands: 5VI, CLR, NAG Resources: FirstGlance, OCA, PDBe, RCSB, PDBsum, ProSAT Publication Abstract from PubMed The 12-transmembrane protein Patched (Ptc1) acts as a suppressor for Hedgehog (Hh) signaling by depleting sterols in the cytoplasmic membrane leaflet that are required for the activation of downstream regulators. The positive modulator Hh inhibits Ptc1's transporter function by binding to Ptc1 and its co-receptors, which are locally concentrated in invaginated microdomains known as caveolae. Here, we reconstitute the mouse Ptc1 into lipid nanodiscs and determine its structure using single-particle cryoelectron microscopy. The structure is overall similar to those in amphipol and detergents but displays various conformational differences in the transmembrane region. Although most particles show monomers, we observe Ptc1 dimers with distinct interaction patterns and different membrane curvatures, some of which are reminiscent of caveolae. We find that an extramembranous "hand-shake" region rich in hydrophobic and aromatic residues mediates inter-Ptc1 interactions under different membrane curvatures. Our data provide a plausible framework for Ptc1 clustering in the highly curved caveolae. Cryo-EM study of patched in lipid nanodisc suggests a structural basis for its clustering in caveolae.,Luo Y, Wan G, Zhang X, Zhou X, Wang Q, Fan J, Cai H, Ma L, Wu H, Qu Q, Cong Y, Zhao Y, Li D Structure. 2021 Jun 22. pii: S0969-2126(21)00208-2. doi:, 10.1016/j.str.2021.06.004. PMID:34174188 From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine. See Also Protein patched homolog 1

Proteopedia Page Contributors and Editors (what is this?)

OCA