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Open data
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Basic information
Entry | Database: PDB / ID: 7z37 | |||||||||||||||
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Title | Structure of the RAF1-HSP90-CDC37 complex (RHC-II) | |||||||||||||||
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![]() | TRANSFERASE / RAF1-HSP90-CDC37 / complex / proto-oncogene / serine/threonine kinase / cancer / chaperone | |||||||||||||||
Function / homology | ![]() regulation of type II interferon-mediated signaling pathway / HSP90-CDC37 chaperone complex / death-inducing signaling complex assembly / negative regulation of proteasomal protein catabolic process / Aryl hydrocarbon receptor signalling / aryl hydrocarbon receptor complex / intermediate filament cytoskeleton organization / dynein axonemal particle / histone methyltransferase binding / type B pancreatic cell proliferation ...regulation of type II interferon-mediated signaling pathway / HSP90-CDC37 chaperone complex / death-inducing signaling complex assembly / negative regulation of proteasomal protein catabolic process / Aryl hydrocarbon receptor signalling / aryl hydrocarbon receptor complex / intermediate filament cytoskeleton organization / dynein axonemal particle / histone methyltransferase binding / type B pancreatic cell proliferation / receptor ligand inhibitor activity / regulation of Rho protein signal transduction / positive regulation of type 2 mitophagy / ATP-dependent protein binding / positive regulation of protein localization to cell surface / SHOC2 M1731 mutant abolishes MRAS complex function / Gain-of-function MRAS complexes activate RAF signaling / Rap1 signalling / protein kinase regulator activity / insulin secretion involved in cellular response to glucose stimulus / protein folding chaperone complex / regulation of cyclin-dependent protein serine/threonine kinase activity / Negative feedback regulation of MAPK pathway / IFNG signaling activates MAPKs / post-transcriptional regulation of gene expression / GP1b-IX-V activation signalling / ERBB2-ERBB3 signaling pathway / Respiratory syncytial virus genome replication / telomerase holoenzyme complex assembly / positive regulation of transforming growth factor beta receptor signaling pathway / Uptake and function of diphtheria toxin / 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 / regulation of type I interferon-mediated signaling pathway / TPR domain binding / face development / pseudopodium / Assembly and release of respiratory syncytial virus (RSV) virions / neurotrophin TRK receptor signaling pathway / regulation of cell differentiation / dendritic growth cone / thyroid gland development / The NLRP3 inflammasome / protein phosphatase activator activity / somatic stem cell population maintenance / extrinsic apoptotic signaling pathway via death domain receptors / Sema3A PAK dependent Axon repulsion / MAP kinase kinase kinase activity / regulation of protein ubiquitination / type II interferon-mediated signaling pathway / HSF1-dependent transactivation / response to unfolded protein / HSF1 activation / telomere maintenance via telomerase / negative regulation of protein-containing complex assembly / Attenuation phase / chaperone-mediated protein complex assembly / protein targeting / Schwann cell development / axonal growth cone / RHOBTB2 GTPase cycle / Purinergic signaling in leishmaniasis infection / negative regulation of extrinsic apoptotic signaling pathway via death domain receptors / supramolecular fiber organization / activation of adenylate cyclase activity / positive regulation of peptidyl-serine phosphorylation / : / DNA polymerase binding / heat shock protein binding / response to muscle stretch / negative regulation of proteasomal ubiquitin-dependent protein catabolic process / Signaling by ERBB2 / myelination / nitric-oxide synthase regulator activity / CD209 (DC-SIGN) signaling / protein folding chaperone / cellular response to interleukin-4 / peptide binding / insulin-like growth factor receptor signaling pathway / HSP90 chaperone cycle for steroid hormone receptors (SHR) in the presence of ligand / ESR-mediated signaling / Constitutive Signaling by Overexpressed ERBB2 / thymus development / positive regulation of cell differentiation / placenta development / Hsp90 protein binding / RAF activation / ATP-dependent protein folding chaperone / wound healing / Signaling by ERBB2 TMD/JMD mutants / Signaling by high-kinase activity BRAF mutants / Constitutive Signaling by EGFRvIII Similarity search - Function | |||||||||||||||
Biological species | ![]() | |||||||||||||||
Method | ELECTRON MICROSCOPY / single particle reconstruction / cryo EM / Resolution: 3.67 Å | |||||||||||||||
![]() | Mesa, P. / Garcia-Alonso, S. / Barbacid, M. / Montoya, G. | |||||||||||||||
Funding support | ![]()
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![]() | ![]() Title: Structure of the RAF1-HSP90-CDC37 complex reveals the basis of RAF1 regulation. Authors: Sara García-Alonso / Pablo Mesa / Laura de la Puente Ovejero / Gonzalo Aizpurua / Carmen G Lechuga / Eduardo Zarzuela / Clara M Santiveri / Manuel Sanclemente / Javier Muñoz / Mónica ...Authors: Sara García-Alonso / Pablo Mesa / Laura de la Puente Ovejero / Gonzalo Aizpurua / Carmen G Lechuga / Eduardo Zarzuela / Clara M Santiveri / Manuel Sanclemente / Javier Muñoz / Mónica Musteanu / Ramón Campos-Olivas / Jorge Martínez-Torrecuadrada / Mariano Barbacid / Guillermo Montoya / ![]() ![]() Abstract: RAF kinases are RAS-activated enzymes that initiate signaling through the MAPK cascade to control cellular proliferation, differentiation, and survival. Here, we describe the structure of the full- ...RAF kinases are RAS-activated enzymes that initiate signaling through the MAPK cascade to control cellular proliferation, differentiation, and survival. Here, we describe the structure of the full-length RAF1 protein in complex with HSP90 and CDC37 obtained by cryoelectron microscopy. The reconstruction reveals a RAF1 kinase with an unfolded N-lobe separated from its C-lobe. The hydrophobic core of the N-lobe is trapped in the HSP90 dimer, while CDC37 wraps around the chaperone and interacts with the N- and C-lobes of the kinase. The structure indicates how CDC37 can discriminate between the different members of the RAF family. Our structural analysis also reveals that the folded RAF1 assembles with 14-3-3 dimers, suggesting that after folding RAF1 follows a similar activation as B-RAF. Finally, disruption of the interaction between CDC37 and the DFG segment of RAF1 unveils potential vulnerabilities in attempting the pharmacological degradation of RAF1 for therapeutic purposes. | |||||||||||||||
History |
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Structure visualization
Structure viewer | Molecule: ![]() ![]() |
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Downloads & links
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Download
PDBx/mmCIF format | ![]() | 400.7 KB | Display | ![]() |
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PDB format | ![]() | Display | ![]() | |
PDBx/mmJSON format | ![]() | Tree view | ![]() | |
Others | ![]() |
-Validation report
Arichive directory | ![]() ![]() | HTTPS FTP |
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-Related structure data
Related structure data | ![]() 14472MC ![]() 7z38C M: map data used to model this data C: citing same article ( |
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Similar structure data | Similarity search - Function & homology ![]() |
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Links
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Assembly
Deposited unit | ![]()
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Components
#1: Protein | Mass: 84371.281 Da / Num. of mol.: 2 Source method: isolated from a genetically manipulated source Details: N-terminal HA-tag + HSP90-beta / Source: (gene. exp.) ![]() ![]() #2: Protein | | Mass: 74409.953 Da / Num. of mol.: 1 Source method: isolated from a genetically manipulated source Details: RAF1 + linker Gly-Ser-Ala + C-terminal StrepTagII / Source: (gene. exp.) ![]() ![]() References: UniProt: P04049, non-specific serine/threonine protein kinase #3: Protein | | Mass: 46535.516 Da / Num. of mol.: 1 Source method: isolated from a genetically manipulated source Details: CDC37 + C-terminal Myc-DDK tag / Source: (gene. exp.) ![]() ![]() #4: Chemical | Has ligand of interest | Y | Has protein modification | Y | |
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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
Component | Name: RAF1-HSP90-CDC37 complex, RHC-II / Type: COMPLEX / Entity ID: #1-#3 / Source: RECOMBINANT | ||||||||||||||||||||||||||||||
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Molecular weight | Value: 0.28913380 MDa / Experimental value: NO | ||||||||||||||||||||||||||||||
Source (natural) | Organism: ![]() | ||||||||||||||||||||||||||||||
Source (recombinant) | Organism: ![]() | ||||||||||||||||||||||||||||||
Buffer solution | pH: 7.5 | ||||||||||||||||||||||||||||||
Buffer component |
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Specimen | Conc.: 0.3 mg/ml / Embedding applied: NO / Shadowing applied: NO / Staining applied: NO / Vitrification applied: YES | ||||||||||||||||||||||||||||||
Specimen support | Grid material: GOLD / Grid mesh size: 200 divisions/in. / Grid type: UltrAuFoil R2/2 | ||||||||||||||||||||||||||||||
Vitrification | Instrument: FEI VITROBOT MARK IV / Cryogen name: ETHANE / Humidity: 100 % / Chamber temperature: 277 K / Details: blot for 3 seconds before plunging |
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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: ![]() |
Electron lens | Mode: BRIGHT FIELD / Nominal defocus max: 2500 nm / Nominal defocus min: 500 nm / Cs: 2.7 mm / C2 aperture diameter: 100 µm |
Specimen holder | Cryogen: NITROGEN / Specimen holder model: FEI TITAN KRIOS AUTOGRID HOLDER |
Image recording | Electron dose: 30 e/Å2 / Detector mode: COUNTING / Film or detector model: FEI FALCON III (4k x 4k) / Num. of grids imaged: 1 / Num. of real images: 8138 Details: 8138 images (4430 non-tilted and 3708 30 degrees tilted) |
Image scans | Width: 4096 / Height: 4096 |
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Processing
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EM software |
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CTF correction | Type: PHASE FLIPPING AND AMPLITUDE CORRECTION | |||||||||||||||||||||||||||||||||||||||||||||
Particle selection | Num. of particles selected: 3760000 Details: 3760k in total: 1353k RAF1:HSP90:CDC37 complex, 1127k 14-3-3 dimer, RAF1:14-3-3 complex 1245k | |||||||||||||||||||||||||||||||||||||||||||||
Symmetry | Point symmetry: C1 (asymmetric) | |||||||||||||||||||||||||||||||||||||||||||||
3D reconstruction | Resolution: 3.67 Å / Resolution method: FSC 0.143 CUT-OFF / Num. of particles: 46000 / Symmetry type: POINT | |||||||||||||||||||||||||||||||||||||||||||||
Refinement | Cross valid method: NONE Stereochemistry target values: GeoStd + Monomer Library + CDL v1.2 | |||||||||||||||||||||||||||||||||||||||||||||
Displacement parameters | Biso mean: 110.87 Å2 | |||||||||||||||||||||||||||||||||||||||||||||
Refine LS restraints |
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