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Open data
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Basic information
| Entry | Database: PDB / ID: 7kw7 | ||||||
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| Title | Atomic cryoEM structure of Hsp90-Hsp70-Hop-GR | ||||||
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Keywords | CHAPERONE / Client-loading | ||||||
| Function / homology | Function and homology informationRegulation of NPAS4 gene transcription / : / nuclear glucocorticoid receptor activity / microglia differentiation / negative regulation of inclusion body assembly / cellular heat acclimation / positive regulation of nucleotide-binding oligomerization domain containing 2 signaling pathway / Viral RNP Complexes in the Host Cell Nucleus / C3HC4-type RING finger domain binding / steroid hormone binding ...Regulation of NPAS4 gene transcription / : / nuclear glucocorticoid receptor activity / microglia differentiation / negative regulation of inclusion body assembly / cellular heat acclimation / positive regulation of nucleotide-binding oligomerization domain containing 2 signaling pathway / Viral RNP Complexes in the Host Cell Nucleus / C3HC4-type RING finger domain binding / steroid hormone binding / neuroinflammatory response / PTK6 Expression / dynein axonemal particle / positive regulation of microtubule nucleation / ATP-dependent protein disaggregase activity / misfolded protein binding / astrocyte differentiation / negative regulation of mitochondrial outer membrane permeabilization involved in apoptotic signaling pathway / aggresome / regulation of mitotic spindle assembly / positive regulation of tumor necrosis factor-mediated signaling pathway / motor behavior / lysosomal transport / RND1 GTPase cycle / cellular response to glucocorticoid stimulus / sperm plasma membrane / sperm mitochondrial sheath / sulfonylurea receptor binding / CTP binding / cellular response to steroid hormone stimulus / Scavenging by Class F Receptors / positive regulation of protein polymerization / vRNP Assembly / UTP binding / dATP binding / telomerase holoenzyme complex assembly / chaperone-mediated autophagy / mitochondrial transport / Respiratory syncytial virus genome replication / Rho GDP-dissociation inhibitor binding / Drug-mediated inhibition of ERBB2 signaling / Resistance of ERBB2 KD mutants to trastuzumab / Resistance of ERBB2 KD mutants to sapitinib / Resistance of ERBB2 KD mutants to tesevatinib / Resistance of ERBB2 KD mutants to neratinib / Resistance of ERBB2 KD mutants to osimertinib / Resistance of ERBB2 KD mutants to afatinib / Resistance of ERBB2 KD mutants to AEE788 / Resistance of ERBB2 KD mutants to lapatinib / Drug resistance in ERBB2 TMD/JMD mutants / Uptake and function of diphtheria toxin / protein import into mitochondrial matrix / dendritic growth cone / TPR domain binding / mRNA catabolic process / PIWI-interacting RNA (piRNA) biogenesis / non-chaperonin molecular chaperone ATPase / cellular response to dexamethasone stimulus / Assembly and release of respiratory syncytial virus (RSV) virions / positive regulation of cell size / Dengue Virus Genome Translation and Replication / nuclear receptor-mediated steroid hormone signaling pathway / Sema3A PAK dependent Axon repulsion / cellular response to unfolded protein / regulation of protein ubiquitination / estrogen response element binding / protein folding chaperone complex / HSF1-dependent transactivation / negative regulation of extrinsic apoptotic signaling pathway in absence of ligand / Regulation of HSF1-mediated heat shock response / response to unfolded protein / cellular response to transforming growth factor beta stimulus / regulation of protein-containing complex assembly / protein unfolding / Mitochondrial unfolded protein response (UPRmt) / FOXO-mediated transcription of oxidative stress, metabolic and neuronal genes / Attenuation phase / enzyme-substrate adaptor activity / HSF1 activation / chaperone-mediated protein complex assembly / negative regulation of endoplasmic reticulum stress-induced intrinsic apoptotic signaling pathway / neurofibrillary tangle assembly / axonal growth cone / RHOBTB2 GTPase cycle / telomere maintenance via telomerase / positive regulation of lamellipodium assembly / regulation of postsynaptic membrane neurotransmitter receptor levels / core promoter sequence-specific DNA binding / transcription regulator inhibitor activity / ATP metabolic process / nitric oxide metabolic process / response to cold / steroid binding / skeletal muscle contraction / response to salt stress / positive regulation of defense response to virus by host / endoplasmic reticulum unfolded protein response / Signaling by ERBB2 / eNOS activation / positive regulation of telomere maintenance via telomerase Similarity search - Function | ||||||
| Biological species | Homo sapiens (human) | ||||||
| Method | ELECTRON MICROSCOPY / single particle reconstruction / cryo EM / Resolution: 3.57 Å | ||||||
Authors | Wang, R.Y. / Noddings, C.M. / Kirschke, E. / Myasnikov, A. / Johnson, J.L. / Agard, D.A. | ||||||
| Funding support | United States, 1items
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Citation | Journal: Nature / Year: 2022Title: Structure of Hsp90-Hsp70-Hop-GR reveals the Hsp90 client-loading mechanism. Authors: Ray Yu-Ruei Wang / Chari M Noddings / Elaine Kirschke / Alexander G Myasnikov / Jill L Johnson / David A Agard / ![]() Abstract: Maintaining a healthy proteome is fundamental for the survival of all organisms. Integral to this are Hsp90 and Hsp70, molecular chaperones that together facilitate the folding, remodelling and ...Maintaining a healthy proteome is fundamental for the survival of all organisms. Integral to this are Hsp90 and Hsp70, molecular chaperones that together facilitate the folding, remodelling and maturation of the many 'client proteins' of Hsp90. The glucocorticoid receptor (GR) is a model client protein that is strictly dependent on Hsp90 and Hsp70 for activity. Chaperoning GR involves a cycle of inactivation by Hsp70; formation of an inactive GR-Hsp90-Hsp70-Hop 'loading' complex; conversion to an active GR-Hsp90-p23 'maturation' complex; and subsequent GR release. However, to our knowledge, a molecular understanding of this intricate chaperone cycle is lacking for any client protein. Here we report the cryo-electron microscopy structure of the GR-loading complex, in which Hsp70 loads GR onto Hsp90, uncovering the molecular basis of direct coordination by Hsp90 and Hsp70. The structure reveals two Hsp70 proteins, one of which delivers GR and the other scaffolds the Hop cochaperone. Hop interacts with all components of the complex, including GR, and poises Hsp90 for subsequent ATP hydrolysis. GR is partially unfolded and recognized through an extended binding pocket composed of Hsp90, Hsp70 and Hop, revealing the mechanism of GR loading and inactivation. Together with the GR-maturation complex structure, we present a complete molecular mechanism of chaperone-dependent client remodelling, and establish general principles of client recognition, inhibition, transfer and activation. | ||||||
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Structure visualization
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| Structure viewer | Molecule: Molmil Jmol/JSmol |
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Downloads & links
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Download
| PDBx/mmCIF format | 7kw7.cif.gz | 1018.1 KB | Display | PDBx/mmCIF format |
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| PDB format | pdb7kw7.ent.gz | 838.1 KB | Display | PDB format |
| PDBx/mmJSON format | 7kw7.json.gz | Tree view | PDBx/mmJSON format | |
| Others | Other downloads |
-Validation report
| Arichive directory | https://data.pdbj.org/pub/pdb/validation_reports/kw/7kw7 ftp://data.pdbj.org/pub/pdb/validation_reports/kw/7kw7 | HTTPS FTP |
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-Related structure data
| Related structure data | ![]() 23050MC M: map data used to model this data C: citing same article ( |
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| Similar structure data |
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Links
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Assembly
| Deposited unit | ![]()
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Components
-Protein , 4 types, 6 molecules ABCDEF
| #1: Protein | Mass: 84781.727 Da / Num. of mol.: 2 Source method: isolated from a genetically manipulated source Source: (gene. exp.) Homo sapiens (human) / Gene: HSP90AA1, HSP90A, HSPC1, HSPCA / Production host: ![]() #2: Protein | Mass: 70140.133 Da / Num. of mol.: 2 Source method: isolated from a genetically manipulated source Source: (gene. exp.) Homo sapiens (human) / Gene: HSPA1A, HSP72, HSPA1, HSX70 / Production host: unidentified baculovirus / References: UniProt: P0DMV8#3: Protein | | Mass: 62738.301 Da / Num. of mol.: 1 Source method: isolated from a genetically manipulated source Source: (gene. exp.) Homo sapiens (human) / Gene: STIP1 / Production host: ![]() #4: Protein | | Mass: 85673.906 Da / Num. of mol.: 1 / Mutation: F602S Source method: isolated from a genetically manipulated source Source: (gene. exp.) Homo sapiens (human) / Gene: NR3C1, GRL / Production host: ![]() |
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-Non-polymers , 3 types, 6 molecules 




| #5: Chemical | | #6: Chemical | #7: Chemical | |
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-Details
| Has ligand of interest | N |
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-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-PROPANE |
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Electron microscopy imaging
| Experimental equipment | ![]() Model: Titan Krios / Image courtesy: FEI Company |
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| Microscopy | Model: FEI TITAN KRIOS |
| Electron gun | Electron source: FIELD EMISSION GUN / Accelerating voltage: 300 kV / Illumination mode: FLOOD BEAM |
| Electron lens | Mode: BRIGHT FIELD |
| Image recording | Electron dose: 80 e/Å2 / Film or detector model: GATAN K2 SUMMIT (4k x 4k) |
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Processing
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| CTF correction | Type: PHASE FLIPPING AND AMPLITUDE CORRECTION | ||||||||||||||||||||
| 3D reconstruction | Resolution: 3.57 Å / Resolution method: FSC 0.143 CUT-OFF / Num. of particles: 85619 / Symmetry type: POINT | ||||||||||||||||||||
| Atomic model building | B value: 80 / Protocol: FLEXIBLE FIT / Space: REAL |
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About Yorodumi




Homo sapiens (human)
United States, 1items
Citation
UCSF Chimera













PDBj





































unidentified baculovirus
