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- PDB-9mie: Human NLRP3 complex with compound 2 in the closed hexamer -

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Basic information

Entry
Database: PDB / ID: 9mie
TitleHuman NLRP3 complex with compound 2 in the closed hexamer
ComponentsNACHT, LRR and PYD domains-containing protein 3
KeywordsIMMUNE SYSTEM / NLRP3 / cryo-EM / small molecule inhibitor
Function / homology
Function and homology information


detection of biotic stimulus / molecular sensor activity / phosphatidylinositol phosphate binding / positive regulation of T-helper 2 cell differentiation / NLRP3 inflammasome complex assembly / positive regulation of T-helper 2 cell cytokine production / interphase microtubule organizing center / positive regulation of type 2 immune response / NLRP3 inflammasome complex / cysteine-type endopeptidase activator activity ...detection of biotic stimulus / molecular sensor activity / phosphatidylinositol phosphate binding / positive regulation of T-helper 2 cell differentiation / NLRP3 inflammasome complex assembly / positive regulation of T-helper 2 cell cytokine production / interphase microtubule organizing center / positive regulation of type 2 immune response / NLRP3 inflammasome complex / cysteine-type endopeptidase activator activity / peptidoglycan binding / osmosensory signaling pathway / phosphatidylinositol-4-phosphate binding / negative regulation of non-canonical NF-kappaB signal transduction / pattern recognition receptor signaling pathway / negative regulation of interleukin-1 beta production / pyroptotic inflammatory response / positive regulation of interleukin-4 production / microtubule organizing center / negative regulation of acute inflammatory response / The NLRP3 inflammasome / Purinergic signaling in leishmaniasis infection / signaling adaptor activity / protein maturation / positive regulation of interleukin-1 beta production / molecular condensate scaffold activity / defense response / positive regulation of non-canonical NF-kappaB signal transduction / Cytoprotection by HMOX1 / ADP binding / protein homooligomerization / cellular response to virus / Hydrolases; Acting on acid anhydrides; Acting on acid anhydrides to facilitate cellular and subcellular movement / negative regulation of inflammatory response / Metalloprotease DUBs / positive regulation of inflammatory response / positive regulation of NF-kappaB transcription factor activity / SARS-CoV-1 activates/modulates innate immune responses / cellular response to lipopolysaccharide / regulation of inflammatory response / protein-macromolecule adaptor activity / DNA-binding transcription factor binding / molecular adaptor activity / sequence-specific DNA binding / inflammatory response / Golgi membrane / innate immune response / apoptotic process / SARS-CoV-2 activates/modulates innate and adaptive immune responses / endoplasmic reticulum / signal transduction / positive regulation of transcription by RNA polymerase II / ATP hydrolysis activity / mitochondrion / extracellular region / ATP binding / identical protein binding / nucleus / membrane / cytosol / cytoplasm
Similarity search - Function
NACHT-associated domain / Fish-specific NACHT associated domain / Fish-specific NACHT associated domain / : / NACHT, LRR and PYD domains-containing protein, helical domain HD2 / NLRC4 helical domain HD2 / NOD2, winged helix domain / NOD2 winged helix domain / DAPIN domain / NACHT nucleoside triphosphatase ...NACHT-associated domain / Fish-specific NACHT associated domain / Fish-specific NACHT associated domain / : / NACHT, LRR and PYD domains-containing protein, helical domain HD2 / NLRC4 helical domain HD2 / NOD2, winged helix domain / NOD2 winged helix domain / DAPIN domain / NACHT nucleoside triphosphatase / NACHT domain / DAPIN domain profile. / NACHT-NTPase domain profile. / PAAD/DAPIN/Pyrin domain / PAAD/DAPIN/Pyrin domain / Leucine rich repeat, ribonuclease inhibitor type / Leucine Rich repeat / Death-like domain superfamily / Leucine-rich repeat / Leucine-rich repeat domain superfamily / P-loop containing nucleoside triphosphate hydrolase
Similarity search - Domain/homology
: / ADENOSINE-5'-TRIPHOSPHATE / NACHT, LRR and PYD domains-containing protein 3
Similarity search - Component
Biological speciesHomo sapiens (human)
MethodELECTRON MICROSCOPY / single particle reconstruction / cryo EM / Resolution: 3.93 Å
AuthorsMammoliti, O. / Carbajo, R.J. / Perez-Benito, L. / Yu, X.
Funding support1items
OrganizationGrant numberCountry
Not funded
CitationJournal: J Med Chem / Year: 2025
Title: Discovery of Potent and Brain-Penetrant Bicyclic NLRP3 Inhibitors with Peripheral and Central In Vivo Activity.
Authors: Oscar Mammoliti / Rodrigo Carbajo / Laura Perez-Benito / Xiaodi Yu / Marion L C Prieri / Leonardo Bontempi / Sofie Embrechts / Ine Paesmans / Michela Bassi / Anindya Bhattacharya / Santiago ...Authors: Oscar Mammoliti / Rodrigo Carbajo / Laura Perez-Benito / Xiaodi Yu / Marion L C Prieri / Leonardo Bontempi / Sofie Embrechts / Ine Paesmans / Michela Bassi / Anindya Bhattacharya / Santiago Cañellas / Saskia De Hoog / Samuël Demin / Harrie J M Gijsen / Geerwin Hache / Tom Jacobs / Soufyan Jerhaoui / Joseph Leenaerts / Ferdinand H Lutter / Michel Mahieu / Rosalie Matico / Robyn Miller / Daniel Oehlrich / Mathieu Perrier / Pavel Ryabchuk / Wim Schepens / Sujata Sharma / Marijke Somers / Javier Suarez / Michel Surkyn / Nina Van Opdenbosch / Tinne Verhulst / Astrid Bottelbergs /
Abstract: NLRP3 is a danger sensor protein responsible for inflammasome activation. This leads to pro-inflammatory cytokines release, like IL-1β, and pyroptosis, a regulated cell death. Mounting evidence ...NLRP3 is a danger sensor protein responsible for inflammasome activation. This leads to pro-inflammatory cytokines release, like IL-1β, and pyroptosis, a regulated cell death. Mounting evidence associates excessive NLRP3 activation to neurodegenerative conditions, such as Alzheimer's and Parkinson's diseases. Thus, NLRP3 inhibitors could potentially provide therapeutic benefit for these disorders. We describe here the evolution of inhibitors relying on a pyridazine-based motif for their key interactions with NLRP3. A Cryo-EM structure helped optimizing protein-ligand complementarity. Subsequently, conformational NMR studies pointed the efforts toward 5,6-bicyclic cores that allowed a balance between brain penetration and undesirable properties, such as hERG inhibition. The effort culminated in compound , which showed moderate (mouse) to good (rat) brain penetration and was active at low dose in an LPS challenge model. Importantly, an earlier compound was active in a central neuroinflammation model providing a valuable proof of concept for NLRP3 inhibition.
History
DepositionDec 12, 2024Deposition site: RCSB / Processing site: RCSB
Revision 1.0Feb 26, 2025Provider: repository / Type: Initial release
Revision 1.0Feb 26, 2025Data content type: EM metadata / Data content type: EM metadata / Provider: repository / Type: Initial release
Revision 1.0Feb 26, 2025Data content type: Additional map / Part number: 1 / Data content type: Additional map / Provider: repository / Type: Initial release
Revision 1.0Feb 26, 2025Data content type: Half map / Part number: 1 / Data content type: Half map / Provider: repository / Type: Initial release
Revision 1.0Feb 26, 2025Data content type: Half map / Part number: 2 / Data content type: Half map / Provider: repository / Type: Initial release
Revision 1.0Feb 26, 2025Data content type: Image / Data content type: Image / Provider: repository / Type: Initial release
Revision 1.0Feb 26, 2025Data content type: Primary map / Data content type: Primary map / Provider: repository / Type: Initial release
Revision 1.1Mar 12, 2025Group: Data collection / Database references / Category: citation / citation_author / em_admin
Item: _citation.journal_volume / _citation.page_first ..._citation.journal_volume / _citation.page_first / _citation.page_last / _citation_author.identifier_ORCID / _em_admin.last_update

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Structure visualization

Structure viewerMolecule:
MolmilJmol/JSmol

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Assembly

Deposited unit
C: NACHT, LRR and PYD domains-containing protein 3
hetero molecules


Theoretical massNumber of molelcules
Total (without water)119,2233
Polymers118,3241
Non-polymers9002
Water00
1


  • Idetical with deposited unit
  • defined by author
  • Evidence: electron microscopy, not applicable
TypeNameSymmetry operationNumber
identity operation1_5551

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Components

#1: Protein NACHT, LRR and PYD domains-containing protein 3 / Angiotensin/vasopressin receptor AII/AVP-like / Caterpiller protein 1.1 / CLR1.1 / Cold-induced ...Angiotensin/vasopressin receptor AII/AVP-like / Caterpiller protein 1.1 / CLR1.1 / Cold-induced autoinflammatory syndrome 1 protein / Cryopyrin / PYRIN-containing APAF1-like protein 1


Mass: 118323.531 Da / Num. of mol.: 1
Source method: isolated from a genetically manipulated source
Source: (gene. exp.) Homo sapiens (human) / Gene: NLRP3, C1orf7, CIAS1, NALP3, PYPAF1 / Production host: Spodoptera frugiperda (fall armyworm)
References: UniProt: Q96P20, Hydrolases; Acting on acid anhydrides; Acting on acid anhydrides to facilitate cellular and subcellular movement
#2: Chemical ChemComp-ATP / ADENOSINE-5'-TRIPHOSPHATE


Mass: 507.181 Da / Num. of mol.: 1 / Source method: obtained synthetically / Formula: C10H16N5O13P3 / Comment: ATP, energy-carrying molecule*YM
#3: Chemical ChemComp-A1BLP / (2P)-2-(4-{[(3R)-1-methylpiperidin-3-yl]amino}-6,7-dihydro-5H-cyclopenta[d]pyridazin-1-yl)-5-(trifluoromethyl)phenol


Mass: 392.418 Da / Num. of mol.: 1 / Source method: obtained synthetically / Formula: C20H23F3N4O / Feature type: SUBJECT OF INVESTIGATION
Has ligand of interestY
Has protein modificationN

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Experimental details

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Experiment

ExperimentMethod: ELECTRON MICROSCOPY
EM experimentAggregation state: PARTICLE / 3D reconstruction method: single particle reconstruction

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Sample preparation

ComponentName: Human NLRP3 complex with compound 2 / Type: COMPLEX / Entity ID: #1 / Source: RECOMBINANT
Source (natural)Organism: Homo sapiens (human)
Source (recombinant)Organism: Spodoptera frugiperda (fall armyworm)
Buffer solutionpH: 7.4
SpecimenEmbedding applied: NO / Shadowing applied: NO / Staining applied: NO / Vitrification applied: YES
VitrificationCryogen name: ETHANE

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Electron microscopy imaging

Experimental equipment
Model: Titan Krios / Image courtesy: FEI Company
MicroscopyModel: TFS KRIOS
Electron gunElectron source: FIELD EMISSION GUN / Accelerating voltage: 300 kV / Illumination mode: FLOOD BEAM
Electron lensMode: BRIGHT FIELD / Nominal defocus max: 2400 nm / Nominal defocus min: 800 nm
Image recordingElectron dose: 52.34 e/Å2 / Film or detector model: GATAN K3 (6k x 4k)

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Processing

CTF correctionType: PHASE FLIPPING AND AMPLITUDE CORRECTION
3D reconstructionResolution: 3.93 Å / Resolution method: FSC 0.143 CUT-OFF / Num. of particles: 407363 / Symmetry type: POINT

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