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Yorodumi- PDB-9ay7: Crystal structure of CRAF/MEK1 complex with NST-628 and inactive RAF -
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Basic information
| Entry | Database: PDB / ID: 9ay7 | ||||||
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| Title | Crystal structure of CRAF/MEK1 complex with NST-628 and inactive RAF | ||||||
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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 / face development / pseudopodium / endodermal cell differentiation / MAP kinase kinase activity / Bergmann glial cell differentiation / positive regulation of ATP biosynthetic process / regulation of cell differentiation / thyroid gland development / Uptake and function of anthrax toxins / positive regulation of protein serine/threonine kinase activity / extrinsic apoptotic signaling pathway via death domain receptors / somatic stem cell population maintenance / positive regulation of peptidyl-serine phosphorylation / MAP kinase kinase kinase activity / protein kinase activator activity / type II interferon-mediated signaling pathway / Schwann cell development / response to axon injury / negative regulation of protein-containing complex assembly / 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 / protein serine/threonine/tyrosine kinase activity / positive regulation of autophagy / 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 / Stimuli-sensing channels / small GTPase binding / 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 / heart development / response to oxidative stress / protein tyrosine kinase activity Similarity search - Function | ||||||
| Biological species | Homo sapiens (human) | ||||||
| Method | X-RAY DIFFRACTION / SYNCHROTRON / MOLECULAR REPLACEMENT / Resolution: 2.41 Å | ||||||
Authors | Quade, B. / 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 | 9ay7.cif.gz | 305.9 KB | Display | PDBx/mmCIF format |
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| PDB format | pdb9ay7.ent.gz | Display | PDB format | |
| PDBx/mmJSON format | 9ay7.json.gz | Tree view | PDBx/mmJSON format | |
| Others | Other downloads |
-Validation report
| Arichive directory | https://data.pdbj.org/pub/pdb/validation_reports/ay/9ay7 ftp://data.pdbj.org/pub/pdb/validation_reports/ay/9ay7 | HTTPS FTP |
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-Related structure data
| Related structure data | ![]() 9axaC ![]() 9axcC ![]() 9axhC ![]() 9axmC ![]() 9axxC ![]() 9axyC ![]() 9ayaC 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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| Unit cell |
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Components
-Protein , 2 types, 2 molecules AB
| #1: Protein | Mass: 31975.775 Da / Num. of mol.: 1 / 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: P04049, non-specific serine/threonine protein kinase |
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| #2: Protein | Mass: 43518.988 Da / Num. of mol.: 1 / 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 |
-Non-polymers , 7 types, 186 molecules 










| #3: Chemical | | #4: Chemical | #5: Chemical | ChemComp-NI / | #6: Chemical | ChemComp-ACT / #7: Chemical | ChemComp-EDO / | #8: Chemical | ChemComp-A1AHE / | Mass: 488.464 Da / Num. of mol.: 1 / Source method: obtained synthetically / Formula: C22H18F2N4O5S / Feature type: SUBJECT OF INVESTIGATION #9: Water | ChemComp-HOH / | |
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-Details
| Has ligand of interest | Y |
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-Experimental details
-Experiment
| Experiment | Method: X-RAY DIFFRACTION / Number of used crystals: 1 |
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Sample preparation
| Crystal | Density Matthews: 2.49 Å3/Da / Density % sol: 50.69 % |
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| Crystal grow | Temperature: 291 K / Method: vapor diffusion, sitting drop / pH: 8 / Details: 0.2M sodium acetate pH 8.0, 20% w/v PEG 3350 |
-Data collection
| Diffraction | Mean temperature: 100 K / Serial crystal experiment: N |
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| Diffraction source | Source: SYNCHROTRON / Site: SPring-8 / Beamline: BL45XU / Wavelength: 1 Å |
| Detector | Type: DECTRIS PILATUS3 6M / Detector: PIXEL / Date: May 25, 2023 |
| Radiation | Protocol: SINGLE WAVELENGTH / Monochromatic (M) / Laue (L): M / Scattering type: x-ray |
| Radiation wavelength | Wavelength: 1 Å / Relative weight: 1 |
| Reflection | Resolution: 2.41→48.95 Å / Num. obs: 29864 / % possible obs: 100 % / Redundancy: 13.3 % / Biso Wilson estimate: 49.48 Å2 / Rmerge(I) obs: 0.112 / Net I/σ(I): 15.8 |
| Reflection shell | Resolution: 2.41→2.5 Å / Rmerge(I) obs: 1.148 / Num. unique obs: 2786 |
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Processing
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| Refinement | Method to determine structure: MOLECULAR REPLACEMENT / Resolution: 2.41→48.95 Å / SU ML: 0.2948 / Cross valid method: FREE R-VALUE / σ(F): 1.36 / Phase error: 24.6551 Stereochemistry target values: GeoStd + Monomer Library + CDL v1.2
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| Solvent computation | Shrinkage radii: 0.9 Å / VDW probe radii: 1.1 Å / Solvent model: FLAT BULK SOLVENT MODEL | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Displacement parameters | Biso mean: 58.5 Å2 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Refinement step | Cycle: LAST / Resolution: 2.41→48.95 Å
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| Refine LS restraints |
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| LS refinement shell |
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| Refinement TLS params. | Method: refined / Origin x: -17.5524925115 Å / Origin y: 1.37446586767 Å / Origin z: -22.9292303617 Å
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| Refinement TLS group | Selection details: all |
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Homo sapiens (human)
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