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Yorodumi- PDB-9chx: cryo-EM structure of calcineurin-fused beta2 adrenergic receptor ... -
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Basic information
| Entry | Database: PDB / ID: 9chx | ||||||
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| Title | cryo-EM structure of calcineurin-fused beta2 adrenergic receptor in carazolol bound inactive state | ||||||
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Keywords | MEMBRANE PROTEIN/HYDROLASE/ISOMERASE / GPCR / cryo-EM / calcineurin fusion / inactive state / MEMBRANE PROTEIN / MEMBRANE PROTEIN-HYDROLASE-ISOMERASE complex | ||||||
| Function / homology | Function and homology informationnegative regulation of angiotensin-activated signaling pathway / calcium-dependent protein serine/threonine phosphatase regulator activity / regulation of cell proliferation involved in kidney morphogenesis / positive regulation of glomerulus development / negative regulation of calcium ion import across plasma membrane / CLEC7A (Dectin-1) induces NFAT activation / negative regulation of signaling / calcium-dependent protein serine/threonine phosphatase activity / positive regulation of saliva secretion / Calcineurin activates NFAT ...negative regulation of angiotensin-activated signaling pathway / calcium-dependent protein serine/threonine phosphatase regulator activity / regulation of cell proliferation involved in kidney morphogenesis / positive regulation of glomerulus development / negative regulation of calcium ion import across plasma membrane / CLEC7A (Dectin-1) induces NFAT activation / negative regulation of signaling / calcium-dependent protein serine/threonine phosphatase activity / positive regulation of saliva secretion / Calcineurin activates NFAT / calmodulin-dependent protein phosphatase activity / calcineurin complex / positive regulation of calcium ion import across plasma membrane / positive regulation of connective tissue replacement / Ca2+ pathway / positive regulation of cardiac muscle hypertrophy in response to stress / negative regulation of dendrite morphogenesis / FCERI mediated Ca+2 mobilization / protein serine/threonine phosphatase complex / macrolide binding / activin receptor binding / renal filtration / lung epithelial cell differentiation / calcineurin-NFAT signaling cascade / regulation of skeletal muscle contraction by regulation of release of sequestered calcium ion / transforming growth factor beta receptor binding / cytoplasmic side of membrane / TGFBR1 LBD Mutants in Cancer / positive regulation of calcineurin-NFAT signaling cascade / type I transforming growth factor beta receptor binding / myelination in peripheral nervous system / transition between fast and slow fiber / negative regulation of activin receptor signaling pathway / heart trabecula formation / positive regulation of osteoclast differentiation / I-SMAD binding / cardiac muscle hypertrophy in response to stress / positive regulation of mini excitatory postsynaptic potential / beta2-adrenergic receptor activity / negative regulation of smooth muscle contraction / regulation of synaptic vesicle cycle / AMPA selective glutamate receptor signaling pathway / positive regulation of autophagosome maturation / norepinephrine-epinephrine-mediated vasodilation involved in regulation of systemic arterial blood pressure / heat generation / norepinephrine binding / regulation of amyloid precursor protein catabolic process / signaling receptor inhibitor activity / Adrenoceptors / terminal cisterna / ryanodine receptor complex / positive regulation of lipophagy / negative regulation of multicellular organism growth / negative regulation of G protein-coupled receptor signaling pathway / 'de novo' protein folding / CLEC7A (Dectin-1) induces NFAT activation / branching involved in blood vessel morphogenesis / endosome to lysosome transport / dendrite morphogenesis / ventricular cardiac muscle tissue morphogenesis / response to psychosocial stress / adrenergic receptor signaling pathway / protein-serine/threonine phosphatase / positive regulation of cardiac muscle hypertrophy / FK506 binding / diet induced thermogenesis / regulation of postsynaptic neurotransmitter receptor internalization / parallel fiber to Purkinje cell synapse / positive regulation of activated T cell proliferation / positive regulation of cAMP/PKA signal transduction / TGF-beta receptor signaling activates SMADs / mTORC1-mediated signalling / phosphoprotein phosphatase activity / adenylate cyclase binding / positive regulation of endocytosis / regulation of ryanodine-sensitive calcium-release channel activity / smooth muscle contraction / Calcineurin activates NFAT / epithelial to mesenchymal transition / DARPP-32 events / epidermis development / Activation of BAD and translocation to mitochondria / bone resorption / regulation of immune response / positive regulation of bone mineralization / potassium channel regulator activity / positive regulation of osteoblast differentiation / neuronal dense core vesicle / phosphatase binding / postsynaptic modulation of chemical synaptic transmission / multicellular organismal response to stress / brown fat cell differentiation / heart morphogenesis / protein dephosphorylation / intercellular bridge / keratinocyte differentiation / regulation of sodium ion transport / skeletal muscle fiber development / adenylate cyclase-activating adrenergic receptor signaling pathway / supramolecular fiber organization Similarity search - Function | ||||||
| Biological species | Homo sapiens (human)![]() | ||||||
| Method | ELECTRON MICROSCOPY / single particle reconstruction / cryo EM / Resolution: 3.5 Å | ||||||
Authors | Xu, J. / Chen, G. / Du, Y. / Kobilka, B.K. | ||||||
| Funding support | 1items
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Citation | Journal: Proc Natl Acad Sci U S A / Year: 2024Title: Calcineurin-fusion facilitates cryo-EM structure determination of a Family A GPCR. Authors: Jun Xu / Geng Chen / Haoqing Wang / Sheng Cao / Jie Heng / Xavier Deupi / Yang Du / Brian K Kobilka / ![]() Abstract: Advances in singe-particle cryo-electron microscopy (cryo-EM) have made it possible to solve the structures of numerous Family A and Family B G protein-coupled receptors (GPCRs) in complex with G ...Advances in singe-particle cryo-electron microscopy (cryo-EM) have made it possible to solve the structures of numerous Family A and Family B G protein-coupled receptors (GPCRs) in complex with G proteins and arrestins, as well as several Family C GPCRs. Determination of these structures has been facilitated by the presence of large extramembrane components (such as G protein, arrestin, or Venus flytrap domains) in these complexes that aid in particle alignment during the processing of the cryo-EM data. In contrast, determination of the inactive state structure of Family A GPCRs is more challenging due to the relatively small size of the seven transmembrane domain (7TM) and to the surrounding detergent micelle that, in the absence of other features, make particle alignment impossible. Here, we describe an alternative protein engineering strategy where the heterodimeric protein calcineurin is fused to a GPCR by three points of attachment, the cytoplasmic ends of TM5, TM6, and TM7. This three-point attachment provides a more rigid link with the GPCR transmembrane domain that facilitates particle alignment during data processing, allowing us to determine the structures of the β adrenergic receptor (βAR) in the apo, antagonist-bound, and agonist-bound states. We expect that this fusion strategy may have broad application in cryo-EM structural determination of other Family A GPCRs. | ||||||
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Structure visualization
| Structure viewer | Molecule: Molmil Jmol/JSmol |
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Downloads & links
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Download
| PDBx/mmCIF format | 9chx.cif.gz | 173.5 KB | Display | PDBx/mmCIF format |
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| PDB format | pdb9chx.ent.gz | 131.9 KB | Display | PDB format |
| PDBx/mmJSON format | 9chx.json.gz | Tree view | PDBx/mmJSON format | |
| Others | Other downloads |
-Validation report
| Summary document | 9chx_validation.pdf.gz | 1.3 MB | Display | wwPDB validaton report |
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| Full document | 9chx_full_validation.pdf.gz | 1.3 MB | Display | |
| Data in XML | 9chx_validation.xml.gz | 38.3 KB | Display | |
| Data in CIF | 9chx_validation.cif.gz | 55 KB | Display | |
| Arichive directory | https://data.pdbj.org/pub/pdb/validation_reports/ch/9chx ftp://data.pdbj.org/pub/pdb/validation_reports/ch/9chx | HTTPS FTP |
-Related structure data
| Related structure data | ![]() 45604MC ![]() 9chuC ![]() 9chvC M: map data used to model this data C: citing same article ( |
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| Similar structure data | Similarity search - Function & homology F&H Search |
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Links
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Assembly
| Deposited unit | ![]()
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Components
| #1: Protein | Mass: 51309.711 Da / Num. of mol.: 1 Source method: isolated from a genetically manipulated source Details: residues 29-354 (Uniprot numbering) of the beta2-AR with the third cytoplasmic domain replaced with residues 16-170 (Uniprot numbering) of calcineurin subunit B Source: (gene. exp.) Homo sapiens (human) / Gene: ADRB2, ADRB2R, B2AR, PPP3R1, CNA2, CNB / Production host: ![]() |
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| #2: Protein | Mass: 42627.785 Da / Num. of mol.: 1 / Fragment: residues 1-370 Source method: isolated from a genetically manipulated source Source: (gene. exp.) ![]() ![]() References: UniProt: P63328, protein-serine/threonine phosphatase |
| #3: Protein | Mass: 11967.705 Da / Num. of mol.: 1 Source method: isolated from a genetically manipulated source Source: (gene. exp.) Homo sapiens (human) / Gene: FKBP1A, FKBP1, FKBP12 / Production host: ![]() |
| #4: Chemical | ChemComp-CAU / ( |
| #5: Chemical | ChemComp-FK5 / |
| Has ligand of interest | Y |
| Has protein modification | Y |
-Experimental details
-Experiment
| Experiment | Method: ELECTRON MICROSCOPY |
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| EM experiment | Aggregation state: PARTICLE / 3D reconstruction method: single particle reconstruction |
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Sample preparation
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| Buffer solution | pH: 7.5 | ||||||||||||||||||||||||||||||
| Specimen | Embedding applied: NO / Shadowing applied: NO / Staining applied: NO / Vitrification applied: YES | ||||||||||||||||||||||||||||||
| Vitrification | Cryogen name: ETHANE |
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Electron microscopy imaging
| Experimental equipment | ![]() Model: Titan Krios / Image courtesy: FEI Company |
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| Microscopy | Model: TFS KRIOS |
| Electron gun | Electron source: FIELD EMISSION GUN / Accelerating voltage: 300 kV / Illumination mode: OTHER |
| Electron lens | Mode: BRIGHT FIELD / Nominal defocus max: 2000 nm / Nominal defocus min: 1000 nm |
| Image recording | Electron dose: 48 e/Å2 / Film or detector model: GATAN K2 QUANTUM (4k x 4k) |
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Processing
| EM software | Name: PHENIX / Version: 1.18_3861: / Category: model refinement | ||||||||||||||||||||||||
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| CTF correction | Type: PHASE FLIPPING AND AMPLITUDE CORRECTION | ||||||||||||||||||||||||
| 3D reconstruction | Resolution: 3.5 Å / Resolution method: FSC 0.143 CUT-OFF / Num. of particles: 276093 / Symmetry type: POINT | ||||||||||||||||||||||||
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FIELD EMISSION GUN