+Open data
-Basic information
Entry | Database: EMDB / ID: EMD-21160 | ||||||||||||
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Title | Gasdermin D pore | ||||||||||||
Map data | Pore-forming protein Gasdermin-D | ||||||||||||
Sample |
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Keywords | Pore-forming protein / LIPID BINDING PROTEIN | ||||||||||||
Function / homology | Function and homology information pyroptotic cell death / Release of apoptotic factors from the mitochondria / pore complex assembly / NLRP3 inflammasome complex / wide pore channel activity / Regulation of TLR by endogenous ligand / phosphatidic acid binding / Interleukin-1 processing / cardiolipin binding / phosphatidylinositol-4-phosphate binding ...pyroptotic cell death / Release of apoptotic factors from the mitochondria / pore complex assembly / NLRP3 inflammasome complex / wide pore channel activity / Regulation of TLR by endogenous ligand / phosphatidic acid binding / Interleukin-1 processing / cardiolipin binding / phosphatidylinositol-4-phosphate binding / pyroptotic inflammatory response / phosphatidylserine binding / Pyroptosis / protein secretion / Purinergic signaling in leishmaniasis infection / phosphatidylinositol-4,5-bisphosphate binding / positive regulation of interleukin-1 beta production / mitochondrial membrane / protein homooligomerization / positive regulation of inflammatory response / specific granule lumen / tertiary granule lumen / defense response to Gram-negative bacterium / ficolin-1-rich granule lumen / defense response to Gram-positive bacterium / defense response to bacterium / innate immune response / Neutrophil degranulation / extracellular space / extracellular region / nucleoplasm / membrane / plasma membrane / cytosol Similarity search - Function | ||||||||||||
Biological species | Homo sapiens (human) | ||||||||||||
Method | single particle reconstruction / cryo EM / Resolution: 3.9 Å | ||||||||||||
Authors | Xia S / Ruan J | ||||||||||||
Funding support | United States, 3 items
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Citation | Journal: Nature / Year: 2021 Title: Gasdermin D pore structure reveals preferential release of mature interleukin-1. Authors: Shiyu Xia / Zhibin Zhang / Venkat Giri Magupalli / Juan Lorenzo Pablo / Ying Dong / Setu M Vora / Longfei Wang / Tian-Min Fu / Matthew P Jacobson / Anna Greka / Judy Lieberman / Jianbin Ruan / Hao Wu / Abstract: As organelles of the innate immune system, inflammasomes activate caspase-1 and other inflammatory caspases that cleave gasdermin D (GSDMD). Caspase-1 also cleaves inactive precursors of the ...As organelles of the innate immune system, inflammasomes activate caspase-1 and other inflammatory caspases that cleave gasdermin D (GSDMD). Caspase-1 also cleaves inactive precursors of the interleukin (IL)-1 family to generate mature cytokines such as IL-1β and IL-18. Cleaved GSDMD forms transmembrane pores to enable the release of IL-1 and to drive cell lysis through pyroptosis. Here we report cryo-electron microscopy structures of the pore and the prepore of GSDMD. These structures reveal the different conformations of the two states, as well as extensive membrane-binding elements including a hydrophobic anchor and three positively charged patches. The GSDMD pore conduit is predominantly negatively charged. By contrast, IL-1 precursors have an acidic domain that is proteolytically removed by caspase-1. When permeabilized by GSDMD pores, unlysed liposomes release positively charged and neutral cargoes faster than negatively charged cargoes of similar sizes, and the pores favour the passage of IL-1β and IL-18 over that of their precursors. Consistent with these findings, living-but not pyroptotic-macrophages preferentially release mature IL-1β upon perforation by GSDMD. Mutation of the acidic residues of GSDMD compromises this preference, hindering intracellular retention of the precursor and secretion of the mature cytokine. The GSDMD pore therefore mediates IL-1 release by electrostatic filtering, which suggests the importance of charge in addition to size in the transport of cargoes across this large channel. | ||||||||||||
History |
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-Structure visualization
Movie |
Movie viewer |
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Structure viewer | EM map: SurfViewMolmilJmol/JSmol |
Supplemental images |
-Downloads & links
-EMDB archive
Map data | emd_21160.map.gz | 4.1 MB | EMDB map data format | |
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Header (meta data) | emd-21160-v30.xml emd-21160.xml | 10.3 KB 10.3 KB | Display Display | EMDB header |
FSC (resolution estimation) | emd_21160_fsc.xml | 7.7 KB | Display | FSC data file |
Images | emd_21160.png | 137.7 KB | ||
Filedesc metadata | emd-21160.cif.gz | 5.1 KB | ||
Archive directory | http://ftp.pdbj.org/pub/emdb/structures/EMD-21160 ftp://ftp.pdbj.org/pub/emdb/structures/EMD-21160 | HTTPS FTP |
-Validation report
Summary document | emd_21160_validation.pdf.gz | 431.4 KB | Display | EMDB validaton report |
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Full document | emd_21160_full_validation.pdf.gz | 431 KB | Display | |
Data in XML | emd_21160_validation.xml.gz | 10.1 KB | Display | |
Data in CIF | emd_21160_validation.cif.gz | 12.9 KB | Display | |
Arichive directory | https://ftp.pdbj.org/pub/emdb/validation_reports/EMD-21160 ftp://ftp.pdbj.org/pub/emdb/validation_reports/EMD-21160 | HTTPS FTP |
-Related structure data
Related structure data | 6vfeMC C: citing same article (ref.) M: atomic model generated by this map |
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Similar structure data |
-Links
EMDB pages | EMDB (EBI/PDBe) / EMDataResource |
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Related items in Molecule of the Month |
-Map
File | Download / File: emd_21160.map.gz / Format: CCP4 / Size: 52.7 MB / Type: IMAGE STORED AS FLOATING POINT NUMBER (4 BYTES) | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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Annotation | Pore-forming protein Gasdermin-D | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Projections & slices | Image control
Images are generated by Spider. | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Voxel size | X=Y=Z: 1.7 Å | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Density |
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Symmetry | Space group: 1 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Details | EMDB XML:
CCP4 map header:
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-Supplemental data
-Sample components
-Entire : Pore-forming protein Gasdermin-D
Entire | Name: Pore-forming protein Gasdermin-D |
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Components |
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-Supramolecule #1: Pore-forming protein Gasdermin-D
Supramolecule | Name: Pore-forming protein Gasdermin-D / type: complex / ID: 1 / Parent: 0 / Macromolecule list: all |
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Source (natural) | Organism: Homo sapiens (human) |
Molecular weight | Theoretical: 1 MDa |
-Macromolecule #1: Gasdermin-D, N-terminal
Macromolecule | Name: Gasdermin-D, N-terminal / type: protein_or_peptide / ID: 1 / Number of copies: 33 / Enantiomer: LEVO |
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Source (natural) | Organism: Homo sapiens (human) |
Molecular weight | Theoretical: 26.850221 KDa |
Recombinant expression | Organism: Escherichia coli (E. coli) |
Sequence | String: MGSAFERVVR RVVQELDHGG EFIPVTSLQS STGFQPYCLV VRKPSSSWFW KPRYKCVNLS IKDILEPDAA EPDVQRGRSF HFYDAMDGQ IQGSVELAAP GQAKIAGGAA VSDSSSTSMN VYSLSVDPNT WQTLLHERHL RQPEHKVLQQ LRSRGDNVYV V TEVLQTQK ...String: MGSAFERVVR RVVQELDHGG EFIPVTSLQS STGFQPYCLV VRKPSSSWFW KPRYKCVNLS IKDILEPDAA EPDVQRGRSF HFYDAMDGQ IQGSVELAAP GQAKIAGGAA VSDSSSTSMN VYSLSVDPNT WQTLLHERHL RQPEHKVLQQ LRSRGDNVYV V TEVLQTQK EVEVTRTHKR EGSGRFSLPG ATCEQGEGQG HLSQKKTVTI PSGSTLAFRV AQLVIDSDLD VLLFPDKKQR TF Q UniProtKB: Gasdermin-D |
-Experimental details
-Structure determination
Method | cryo EM |
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Processing | single particle reconstruction |
Aggregation state | particle |
-Sample preparation
Buffer | pH: 8 |
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Vitrification | Cryogen name: ETHANE |
-Electron microscopy
Microscope | FEI TITAN KRIOS |
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Image recording | Film or detector model: GATAN K3 (6k x 4k) / Average electron dose: 63.25 e/Å2 |
Electron beam | Acceleration voltage: 300 kV / Electron source: FIELD EMISSION GUN |
Electron optics | Illumination mode: FLOOD BEAM / Imaging mode: BRIGHT FIELD |
Experimental equipment | Model: Titan Krios / Image courtesy: FEI Company |