+Open data
-Basic information
Entry | Database: EMDB / ID: EMD-43153 | ||||||||||||
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Title | hGBP1 conformer on the bacterial outer membrane | ||||||||||||
Map data | hGBP1 monomer | ||||||||||||
Sample |
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Keywords | dynamin superfamily / GTPase / ANTIMICROBIAL PROTEIN | ||||||||||||
Biological species | Salmonella enterica subsp. enterica serovar Typhimurium (bacteria) / Homo sapiens (human) | ||||||||||||
Method | subtomogram averaging / cryo EM / Resolution: 9.7 Å | ||||||||||||
Authors | Zhu S / MacMicking J | ||||||||||||
Funding support | United States, 3 items
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Citation | Journal: Science / Year: 2024 Title: Native architecture of a human GBP1 defense complex for cell-autonomous immunity to infection. Authors: Shiwei Zhu / Clinton J Bradfield / Agnieszka Maminska / Eui-Soon Park / Bae-Hoon Kim / Pradeep Kumar / Shuai Huang / Minjeong Kim / Yongdeng Zhang / Joerg Bewersdorf / John D MacMicking / Abstract: All living organisms deploy cell-autonomous defenses to combat infection. In plants and animals, large supramolecular complexes often activate immune proteins for protection. In this work, we ...All living organisms deploy cell-autonomous defenses to combat infection. In plants and animals, large supramolecular complexes often activate immune proteins for protection. In this work, we resolved the native structure of a massive host-defense complex that polymerizes 30,000 guanylate-binding proteins (GBPs) over the surface of gram-negative bacteria inside human cells. Construction of this giant nanomachine took several minutes and remained stable for hours, required guanosine triphosphate hydrolysis, and recruited four GBPs plus caspase-4 and Gasdermin D as a cytokine and cell death immune signaling platform. Cryo-electron tomography suggests that GBP1 can adopt an extended conformation for bacterial membrane insertion to establish this platform, triggering lipopolysaccharide release that activated coassembled caspase-4. Our "open conformer" model provides a dynamic view into how the human GBP1 defense complex mobilizes innate immunity to infection. | ||||||||||||
History |
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-Structure visualization
Supplemental images |
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-Downloads & links
-EMDB archive
Map data | emd_43153.map.gz | 59.7 MB | EMDB map data format | |
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Header (meta data) | emd-43153-v30.xml emd-43153.xml | 14.5 KB 14.5 KB | Display Display | EMDB header |
FSC (resolution estimation) | emd_43153_fsc.xml | 9.1 KB | Display | FSC data file |
Images | emd_43153.png | 145.8 KB | ||
Masks | emd_43153_msk_1.map | 64 MB | Mask map | |
Filedesc metadata | emd-43153.cif.gz | 5 KB | ||
Others | emd_43153_half_map_1.map.gz emd_43153_half_map_2.map.gz | 49.5 MB 49.5 MB | ||
Archive directory | http://ftp.pdbj.org/pub/emdb/structures/EMD-43153 ftp://ftp.pdbj.org/pub/emdb/structures/EMD-43153 | HTTPS FTP |
-Related structure data
-Links
EMDB pages | EMDB (EBI/PDBe) / EMDataResource |
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-Map
File | Download / File: emd_43153.map.gz / Format: CCP4 / Size: 64 MB / Type: IMAGE STORED AS FLOATING POINT NUMBER (4 BYTES) | ||||||||||||||||||||||||||||||||||||
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Annotation | hGBP1 monomer | ||||||||||||||||||||||||||||||||||||
Projections & slices | Image control
Images are generated by Spider. | ||||||||||||||||||||||||||||||||||||
Voxel size | X=Y=Z: 2.693 Å | ||||||||||||||||||||||||||||||||||||
Density |
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Symmetry | Space group: 1 | ||||||||||||||||||||||||||||||||||||
Details | EMDB XML:
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-Supplemental data
-Mask #1
File | emd_43153_msk_1.map | ||||||||||||
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Projections & Slices |
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Density Histograms |
-Half map: #1
File | emd_43153_half_map_1.map | ||||||||||||
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Projections & Slices |
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Density Histograms |
-Half map: #2
File | emd_43153_half_map_2.map | ||||||||||||
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Projections & Slices |
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Density Histograms |
-Sample components
-Entire : human GBP1 coats with Salmonella minicell
Entire | Name: human GBP1 coats with Salmonella minicell |
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Components |
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-Supramolecule #1: human GBP1 coats with Salmonella minicell
Supramolecule | Name: human GBP1 coats with Salmonella minicell / type: cell / ID: 1 / Parent: 0 / Macromolecule list: all |
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Source (natural) | Organism: Salmonella enterica subsp. enterica serovar Typhimurium (bacteria) |
-Macromolecule #1: Human guanylate-binding protein 1
Macromolecule | Name: Human guanylate-binding protein 1 / type: other / ID: 1 / Classification: other |
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Source (natural) | Organism: Homo sapiens (human) |
Sequence | String: MASEIHMTGP MCLIENTNGR LMANPEALKI LSAITQPMVV VAIVGLYRTG KSYLMNKLAG KKKGFSLGST VQSHTKGIWM WCVPHPKKPG HILVLLDTEG LGDVEKGDNQ NDSWIFALAV LLSSTFVYNS IGTINQQAMD QLYYVTELTH RIRSKSSPDE NENEVEDSAD ...String: MASEIHMTGP MCLIENTNGR LMANPEALKI LSAITQPMVV VAIVGLYRTG KSYLMNKLAG KKKGFSLGST VQSHTKGIWM WCVPHPKKPG HILVLLDTEG LGDVEKGDNQ NDSWIFALAV LLSSTFVYNS IGTINQQAMD QLYYVTELTH RIRSKSSPDE NENEVEDSAD FVSFFPDFVW TLRDFSLDLE ADGQPLTPDE YLTYSLKLKK GTSQKDETFN LPRLCIRKFF PKKKCFVFDR PVHRRKLAQL EKLQDEELDP EFVQQVADFC SYIFSNSKTK TLSGGIQVNG PRLESLVLTY VNAISSGDLP CMENAVLALA QIENSAAVQK AIAHYEQQMG QKVQLPTESL QELLDLHRDS EREAIEVFIR SSFKDVDHLF QKELAAQLEK KRDDFCKQNQ EASSDRCSGL LQVIFSPLEE EVKAGIYSKP GGYRLFVQKL QDLKKKYYEE PRKGIQAEEI LQTYLKSKES MTDAILQTDQ TLTEKEKEIE VERVKAESAQ ASAKMLQEMQ RKNEQMMEQK ERSYQEHLKQ LTEKMENDRV QLLKEQERTL ALKLQEQEQL LKEGFQKESR IMKNEIQDLQ TKMRRRKACT IS |
Recombinant expression | Organism: Homo sapiens (human) |
-Experimental details
-Structure determination
Method | cryo EM |
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Processing | subtomogram averaging |
Aggregation state | cell |
-Sample preparation
Buffer | pH: 7.4 |
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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 BIOQUANTUM (6k x 4k) / Average electron dose: 2.86 e/Å2 |
Electron beam | Acceleration voltage: 300 kV / Electron source: FIELD EMISSION GUN |
Electron optics | Illumination mode: OTHER / Imaging mode: BRIGHT FIELD / Nominal defocus max: 3.5 µm / Nominal defocus min: 1.5 µm |
Experimental equipment | Model: Titan Krios / Image courtesy: FEI Company |
-Image processing
-Atomic model buiding 1
Refinement | Overall B value: 400 |
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