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Yorodumi- EMDB-33294: Cryo-EM structure of Cytochrome bo3 from Escherichia coli, the st... -
+Open data
-Basic information
Entry | Database: EMDB / ID: EMD-33294 | |||||||||
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Title | Cryo-EM structure of Cytochrome bo3 from Escherichia coli, the structure complexed with an allosteric inhibitor N4 | |||||||||
Map data | ||||||||||
Sample |
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Keywords | respiratory enzyme / membrane protein / heme protein / allosteric inhibitor / OXIDOREDUCTASE | |||||||||
Function / homology | Function and homology information oxidoreduction-driven active transmembrane transporter activity / cytochrome o ubiquinol oxidase complex / ubiquinol oxidase (H+-transporting) / cytochrome bo3 ubiquinol oxidase activity / aerobic electron transport chain / oxidoreductase activity, acting on diphenols and related substances as donors, oxygen as acceptor / cytochrome-c oxidase activity / ubiquinone binding / proton transmembrane transporter activity / electron transport coupled proton transport ...oxidoreduction-driven active transmembrane transporter activity / cytochrome o ubiquinol oxidase complex / ubiquinol oxidase (H+-transporting) / cytochrome bo3 ubiquinol oxidase activity / aerobic electron transport chain / oxidoreductase activity, acting on diphenols and related substances as donors, oxygen as acceptor / cytochrome-c oxidase activity / ubiquinone binding / proton transmembrane transporter activity / electron transport coupled proton transport / ATP synthesis coupled electron transport / : / aerobic respiration / respiratory electron transport chain / electron transfer activity / copper ion binding / heme binding / plasma membrane Similarity search - Function | |||||||||
Biological species | Escherichia coli (E. coli) | |||||||||
Method | single particle reconstruction / cryo EM / Resolution: 2.99 Å | |||||||||
Authors | Nishida Y / Shigematsu H / Iwamoto T / Takashima S / Shintani Y | |||||||||
Funding support | Japan, 2 items
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Citation | Journal: Nat Commun / Year: 2022 Title: Identifying antibiotics based on structural differences in the conserved allostery from mitochondrial heme-copper oxidases. Authors: Yuya Nishida / Sachiko Yanagisawa / Rikuri Morita / Hideki Shigematsu / Kyoko Shinzawa-Itoh / Hitomi Yuki / Satoshi Ogasawara / Ken Shimuta / Takashi Iwamoto / Chisa Nakabayashi / Waka ...Authors: Yuya Nishida / Sachiko Yanagisawa / Rikuri Morita / Hideki Shigematsu / Kyoko Shinzawa-Itoh / Hitomi Yuki / Satoshi Ogasawara / Ken Shimuta / Takashi Iwamoto / Chisa Nakabayashi / Waka Matsumura / Hisakazu Kato / Chai Gopalasingam / Takemasa Nagao / Tasneem Qaqorh / Yusuke Takahashi / Satoru Yamazaki / Katsumasa Kamiya / Ryuhei Harada / Nobuhiro Mizuno / Hideyuki Takahashi / Yukihiro Akeda / Makoto Ohnishi / Yoshikazu Ishii / Takashi Kumasaka / Takeshi Murata / Kazumasa Muramoto / Takehiko Tosha / Yoshitsugu Shiro / Teruki Honma / Yasuteru Shigeta / Minoru Kubo / Seiji Takashima / Yasunori Shintani / Abstract: Antimicrobial resistance (AMR) is a global health problem. Despite the enormous efforts made in the last decade, threats from some species, including drug-resistant Neisseria gonorrhoeae, continue to ...Antimicrobial resistance (AMR) is a global health problem. Despite the enormous efforts made in the last decade, threats from some species, including drug-resistant Neisseria gonorrhoeae, continue to rise and would become untreatable. The development of antibiotics with a different mechanism of action is seriously required. Here, we identified an allosteric inhibitory site buried inside eukaryotic mitochondrial heme-copper oxidases (HCOs), the essential respiratory enzymes for life. The steric conformation around the binding pocket of HCOs is highly conserved among bacteria and eukaryotes, yet the latter has an extra helix. This structural difference in the conserved allostery enabled us to rationally identify bacterial HCO-specific inhibitors: an antibiotic compound against ceftriaxone-resistant Neisseria gonorrhoeae. Molecular dynamics combined with resonance Raman spectroscopy and stopped-flow spectroscopy revealed an allosteric obstruction in the substrate accessing channel as a mechanism of inhibition. Our approach opens fresh avenues in modulating protein functions and broadens our options to overcome AMR. | |||||||||
History |
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-Structure visualization
Supplemental images |
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-Downloads & links
-EMDB archive
Map data | emd_33294.map.gz | 80.8 MB | EMDB map data format | |
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Header (meta data) | emd-33294-v30.xml emd-33294.xml | 24.5 KB 24.5 KB | Display Display | EMDB header |
FSC (resolution estimation) | emd_33294_fsc.xml | 10.6 KB | Display | FSC data file |
Images | emd_33294.png | 86.3 KB | ||
Masks | emd_33294_msk_1.map | 103 MB | Mask map | |
Filedesc metadata | emd-33294.cif.gz | 8.9 KB | ||
Others | emd_33294_half_map_1.map.gz emd_33294_half_map_2.map.gz | 80.8 MB 80.8 MB | ||
Archive directory | http://ftp.pdbj.org/pub/emdb/structures/EMD-33294 ftp://ftp.pdbj.org/pub/emdb/structures/EMD-33294 | HTTPS FTP |
-Validation report
Summary document | emd_33294_validation.pdf.gz | 890.6 KB | Display | EMDB validaton report |
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Full document | emd_33294_full_validation.pdf.gz | 890.2 KB | Display | |
Data in XML | emd_33294_validation.xml.gz | 17.8 KB | Display | |
Data in CIF | emd_33294_validation.cif.gz | 23.6 KB | Display | |
Arichive directory | https://ftp.pdbj.org/pub/emdb/validation_reports/EMD-33294 ftp://ftp.pdbj.org/pub/emdb/validation_reports/EMD-33294 | HTTPS FTP |
-Related structure data
Related structure data | 7xmdMC 7xmaC 7xmbC 7xmcC M: atomic model generated by this map C: citing same article (ref.) |
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Similar structure data | Similarity search - Function & homologyF&H Search |
-Links
EMDB pages | EMDB (EBI/PDBe) / EMDataResource |
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Related items in Molecule of the Month |
-Map
File | Download / File: emd_33294.map.gz / Format: CCP4 / Size: 103 MB / Type: IMAGE STORED AS FLOATING POINT NUMBER (4 BYTES) | ||||||||||||||||||||||||||||||||||||
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Projections & slices | Image control
Images are generated by Spider. | ||||||||||||||||||||||||||||||||||||
Voxel size | X=Y=Z: 1.18533 Å | ||||||||||||||||||||||||||||||||||||
Density |
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Symmetry | Space group: 1 | ||||||||||||||||||||||||||||||||||||
Details | EMDB XML:
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-Supplemental data
-Mask #1
File | emd_33294_msk_1.map | ||||||||||||
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Projections & Slices |
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Density Histograms |
-Half map: #2
File | emd_33294_half_map_1.map | ||||||||||||
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Density Histograms |
-Half map: #1
File | emd_33294_half_map_2.map | ||||||||||||
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Projections & Slices |
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Density Histograms |
-Sample components
+Entire : Cytochrome bo3 ubiquinol oxidase
+Supramolecule #1: Cytochrome bo3 ubiquinol oxidase
+Macromolecule #1: Cytochrome bo(3) ubiquinol oxidase subunit 1
+Macromolecule #2: Ubiquinol oxidase subunit 2
+Macromolecule #3: Cytochrome bo(3) ubiquinol oxidase subunit 3
+Macromolecule #4: Cytochrome bo(3) ubiquinol oxidase subunit 4
+Macromolecule #5: HEME O
+Macromolecule #6: PROTOPORPHYRIN IX CONTAINING FE
+Macromolecule #7: COPPER (II) ION
+Macromolecule #8: 1,2-dioleoyl-sn-glycero-3-phosphoethanolamine
+Macromolecule #9: methyl 3-oxidanyl-5-[oxidanyl(oxidanylidene)-$l^{4}-azanyl]-1-ben...
+Macromolecule #10: UNKNOWN ATOM OR ION
-Experimental details
-Structure determination
Method | cryo EM |
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Processing | single particle reconstruction |
Aggregation state | particle |
-Sample preparation
Concentration | 13 mg/mL | ||||||||||||||||||
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Buffer | pH: 7.2 Component:
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Grid | Model: Quantifoil R1.2/1.3 / Material: COPPER / Mesh: 300 / Pretreatment - Type: GLOW DISCHARGE / Pretreatment - Time: 10 sec. / Pretreatment - Pressure: 0.007 kPa | ||||||||||||||||||
Vitrification | Cryogen name: ETHANE / Chamber humidity: 100 % / Chamber temperature: 281 K / Instrument: FEI VITROBOT MARK IV |
-Electron microscopy
Microscope | TFS GLACIOS |
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Image recording | Film or detector model: GATAN K2 SUMMIT (4k x 4k) / Detector mode: COUNTING / Number real images: 7173 / Average electron dose: 50.0 e/Å2 |
Electron beam | Acceleration voltage: 200 kV / Electron source: FIELD EMISSION GUN |
Electron optics | Illumination mode: FLOOD BEAM / Imaging mode: BRIGHT FIELD / Nominal defocus max: 2.0 µm / Nominal defocus min: 0.5 µm |
Sample stage | Specimen holder model: FEI TITAN KRIOS AUTOGRID HOLDER |
+Image processing
-Atomic model buiding 1
Refinement | Protocol: FLEXIBLE FIT |
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Output model | PDB-7xmd: |