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Yorodumi- PDB-9axc: Activated CRAF/MEK heterotetramer from focused refinement of CRAF... -
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Basic information
| Entry | Database: PDB / ID: 9axc | ||||||
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| Title | Activated CRAF/MEK heterotetramer from focused refinement of CRAF/MEK/14-3-3 complex | ||||||
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Keywords | TRANSFERASE / Inhibitor / complex / SIGNALING PROTEIN | ||||||
| Function / homology | Function and homology informationdeath-inducing signaling complex assembly / epithelial cell proliferation involved in lung morphogenesis / positive regulation of endodermal cell differentiation / negative regulation of homotypic cell-cell adhesion / negative regulation of hypoxia-induced intrinsic apoptotic signaling pathway / regulation of vascular associated smooth muscle contraction / intermediate filament cytoskeleton organization / mitogen-activated protein kinase kinase / Golgi inheritance / placenta blood vessel development ...death-inducing signaling complex assembly / epithelial cell proliferation involved in lung morphogenesis / positive regulation of endodermal cell differentiation / negative regulation of homotypic cell-cell adhesion / negative regulation of hypoxia-induced intrinsic apoptotic signaling pathway / regulation of vascular associated smooth muscle contraction / intermediate filament cytoskeleton organization / mitogen-activated protein kinase kinase / Golgi inheritance / placenta blood vessel development / MAP-kinase scaffold activity / positive regulation of muscle contraction / regulation of axon regeneration / cerebellar cortex formation / labyrinthine layer development / regulation of Rho protein signal transduction / melanosome transport / type B pancreatic cell proliferation / Signaling by MAP2K mutants / SHOC2 M1731 mutant abolishes MRAS complex function / Gain-of-function MRAS complexes activate RAF signaling / Rap1 signalling / vesicle transport along microtubule / positive regulation of axonogenesis / positive regulation of Ras protein signal transduction / insulin secretion involved in cellular response to glucose stimulus / regulation of Golgi inheritance / mitogen-activated protein kinase kinase kinase binding / central nervous system neuron differentiation / triglyceride homeostasis / trachea formation / Negative feedback regulation of MAPK pathway / regulation of early endosome to late endosome transport / IFNG signaling activates MAPKs / regulation of stress-activated MAPK cascade / Frs2-mediated activation / GP1b-IX-V activation signalling / MAPK3 (ERK1) activation / ERBB2-ERBB3 signaling pathway / neurotrophin TRK receptor signaling pathway / regulation of neurotransmitter receptor localization to postsynaptic specialization membrane / pseudopodium / face development / endodermal cell differentiation / MAP kinase kinase activity / Bergmann glial cell differentiation / positive regulation of ATP biosynthetic process / regulation of cell differentiation / thyroid gland development / glutathione transferase / Uptake and function of anthrax toxins / glutathione transferase activity / positive regulation of protein serine/threonine kinase activity / extrinsic apoptotic signaling pathway via death domain receptors / somatic stem cell population maintenance / protein kinase activator activity / positive regulation of peptidyl-serine phosphorylation / MAP kinase kinase kinase activity / type II interferon-mediated signaling pathway / negative regulation of protein-containing complex assembly / Schwann cell development / response to axon injury / negative regulation of extrinsic apoptotic signaling pathway via death domain receptors / keratinocyte differentiation / neuron projection morphogenesis / response to muscle stretch / ERK1 and ERK2 cascade / myelination / glutathione metabolic process / positive regulation of autophagy / protein serine/threonine/tyrosine kinase activity / CD209 (DC-SIGN) signaling / dendrite cytoplasm / insulin-like growth factor receptor signaling pathway / response to glucocorticoid / MAP3K8 (TPL2)-dependent MAPK1/3 activation / thymus development / adenylate cyclase activator activity / protein serine/threonine kinase activator activity / Signal transduction by L1 / cell motility / positive regulation of transcription elongation by RNA polymerase II / wound healing / RAF activation / Signaling by high-kinase activity BRAF mutants / MAP2K and MAPK activation / small GTPase binding / Stimuli-sensing channels / neuron differentiation / chemotaxis / Negative regulation of MAPK pathway / Signaling by RAF1 mutants / Signaling by moderate kinase activity BRAF mutants / Paradoxical activation of RAF signaling by kinase inactive BRAF / Signaling downstream of RAS mutants / cellular senescence / Signaling by BRAF and RAF1 fusions / insulin receptor signaling pathway / late endosome / MAPK cascade Similarity search - Function | ||||||
| Biological species | Homo sapiens (human) | ||||||
| Method | ELECTRON MICROSCOPY / single particle reconstruction / cryo EM / Resolution: 4.16 Å | ||||||
Authors | Quade, B. / Cohen, S.E. / Huang, X. | ||||||
| Funding support | 1items
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Citation | Journal: Cancer Discov / Year: 2024Title: The Pan-RAF-MEK Nondegrading Molecular Glue NST-628 Is a Potent and Brain-Penetrant Inhibitor of the RAS-MAPK Pathway with Activity across Diverse RAS- and RAF-Driven Cancers. Authors: Meagan B Ryan / Bradley Quade / Natasha Schenk / Zhong Fang / Marshall Zingg / Steven E Cohen / Brooke M Swalm / Chun Li / Ayşegül Özen / Chaoyang Ye / Maria Stella Ritorto / Xin Huang / ...Authors: Meagan B Ryan / Bradley Quade / Natasha Schenk / Zhong Fang / Marshall Zingg / Steven E Cohen / Brooke M Swalm / Chun Li / Ayşegül Özen / Chaoyang Ye / Maria Stella Ritorto / Xin Huang / Arvin C Dar / Yongxin Han / Klaus P Hoeflich / Michael Hale / Margit Hagel / ![]() Abstract: Alterations in the RAS-MAPK signaling cascade are common across multiple solid tumor types and are a driver for many cancers. NST-628 is a potent pan-RAF-MEK molecular glue that prevents the ...Alterations in the RAS-MAPK signaling cascade are common across multiple solid tumor types and are a driver for many cancers. NST-628 is a potent pan-RAF-MEK molecular glue that prevents the phosphorylation and activation of MEK by RAF, overcoming the limitations of traditional RAS-MAPK inhibitors and leading to deep durable inhibition of the pathway. Cellular, biochemical, and structural analyses of RAF-MEK complexes show that NST-628 engages all isoforms of RAF and prevents the formation of BRAF-CRAF heterodimers, a differentiated mechanism from all current RAF inhibitors. With a potent and durable inhibition of the RAF-MEK signaling complex as well as high intrinsic permeability into the brain, NST-628 demonstrates broad efficacy in cellular and patient-derived tumor models harboring diverse MAPK pathway alterations, including orthotopic intracranial models. Given its functional and pharmacokinetic mechanisms that are differentiated from previous therapies, NST-628 is positioned to make an impact clinically in areas of unmet patient need. Significance: This study introduces NST-628, a molecular glue having differentiated mechanism and drug-like properties. NST-628 treatment leads to broad efficacy with high tolerability and central nervous system activity across multiple RAS- and RAF-driven tumor models. NST-628 has the potential to provide transformative clinical benefits as both monotherapy and vertical combination anchor. | ||||||
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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 | 9axc.cif.gz | 221.6 KB | Display | PDBx/mmCIF format |
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| PDB format | pdb9axc.ent.gz | Display | PDB format | |
| PDBx/mmJSON format | 9axc.json.gz | Tree view | PDBx/mmJSON format | |
| Others | Other downloads |
-Validation report
| Summary document | 9axc_validation.pdf.gz | 1.3 MB | Display | wwPDB validaton report |
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| Full document | 9axc_full_validation.pdf.gz | 1.3 MB | Display | |
| Data in XML | 9axc_validation.xml.gz | 39.3 KB | Display | |
| Data in CIF | 9axc_validation.cif.gz | 57.6 KB | Display | |
| Arichive directory | https://data.pdbj.org/pub/pdb/validation_reports/ax/9axc ftp://data.pdbj.org/pub/pdb/validation_reports/ax/9axc | HTTPS FTP |
-Related structure data
| Related structure data | ![]() 43932MC ![]() 9axaC ![]() 9axhC ![]() 9axmC ![]() 9axxC ![]() 9axyC ![]() 9ay7C ![]() 9ayaC 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: 64718.488 Da / Num. of mol.: 2 / Mutation: Y340D Y341D Source method: isolated from a genetically manipulated source Source: (gene. exp.) Homo sapiens (human) / Gene: RAF1, RAF / Production host: Homo sapiens (human)References: UniProt: P08515, UniProt: P04049, glutathione transferase, non-specific serine/threonine protein kinase #2: Protein | Mass: 43518.988 Da / Num. of mol.: 2 / Mutation: S218A S222A Source method: isolated from a genetically manipulated source Source: (gene. exp.) Homo sapiens (human) / Gene: MAP2K1, MEK1, PRKMK1 / Production host: Homo sapiens (human)References: UniProt: Q02750, mitogen-activated protein kinase kinase #3: Chemical | Mass: 488.464 Da / Num. of mol.: 2 / Source method: obtained synthetically / Formula: C22H18F2N4O5S / Feature type: SUBJECT OF INVESTIGATION Has ligand of interest | 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: Activated CRAF/MEK1 heterotetramer complex from focused refinement Type: COMPLEX / Entity ID: #1-#2 / Source: RECOMBINANT |
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| Source (natural) | Organism: Homo sapiens (human) |
| Source (recombinant) | Organism: ![]() |
| 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
| Microscopy | Model: TFS GLACIOS |
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| Electron gun | Electron source: FIELD EMISSION GUN / Accelerating voltage: 200 kV / Illumination mode: FLOOD BEAM |
| Electron lens | Mode: BRIGHT FIELD / Nominal defocus max: 2500 nm / Nominal defocus min: 1000 nm |
| Image recording | Electron dose: 50 e/Å2 / Film or detector model: FEI FALCON IV (4k x 4k) |
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Processing
| CTF correction | Type: PHASE FLIPPING AND AMPLITUDE CORRECTION |
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| 3D reconstruction | Resolution: 4.16 Å / Resolution method: FSC 0.143 CUT-OFF / Num. of particles: 83248 / Symmetry type: POINT |
| Refinement | Cross valid method: NONE |
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Homo sapiens (human)
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FIELD EMISSION GUN