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Yorodumi- EMDB-24829: CryoEM structure of Methylococcus capsulatus (Bath) pMMO in a nat... -
+Open data
-Basic information
Entry | Database: EMDB / ID: EMD-24829 | |||||||||
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Title | CryoEM structure of Methylococcus capsulatus (Bath) pMMO in a native lipid nanodisc at 2.34 Angstrom resolution | |||||||||
Map data | CryoEM structure of Methylococcus capsulatus (Bath) pMMO in a native lipid nanodisc at 2.36 angstrom resolution | |||||||||
Sample |
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Keywords | Complex / OXIDOREDUCTASE | |||||||||
Function / homology | Function and homology information methane monooxygenase (particulate) / methane monooxygenase (soluble) / : / : / monooxygenase activity / membrane / metal ion binding Similarity search - Function | |||||||||
Biological species | Methylococcus capsulatus (strain ATCC 33009 / NCIMB 11132 / Bath) (bacteria) / Methylococcus capsulatus str. Bath (bacteria) | |||||||||
Method | single particle reconstruction / cryo EM / Resolution: 2.36 Å | |||||||||
Authors | Koo CW / Rosenzweig AC | |||||||||
Funding support | United States, 1 items
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Citation | Journal: Science / Year: 2022 Title: Recovery of particulate methane monooxygenase structure and activity in a lipid bilayer. Authors: Christopher W Koo / Frank J Tucci / Yuan He / Amy C Rosenzweig / Abstract: Bacterial methane oxidation using the enzyme particulate methane monooxygenase (pMMO) contributes to the removal of environmental methane, a potent greenhouse gas. Crystal structures determined using ...Bacterial methane oxidation using the enzyme particulate methane monooxygenase (pMMO) contributes to the removal of environmental methane, a potent greenhouse gas. Crystal structures determined using inactive, detergent-solubilized pMMO lack several conserved regions neighboring the proposed active site. We show that reconstituting pMMO in nanodiscs with lipids extracted from the native organism restores methane oxidation activity. Multiple nanodisc-embedded pMMO structures determined by cryo-electron microscopy to 2.14- to 2.46-angstrom resolution reveal the structure of pMMO in a lipid environment. The resulting model includes stabilizing lipids, regions of the PmoA and PmoC subunits not observed in prior structures, and a previously undetected copper-binding site in the PmoC subunit with an adjacent hydrophobic cavity. These structures provide a revised framework for understanding and engineering pMMO function. | |||||||||
History |
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-Structure visualization
Supplemental images |
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-Downloads & links
-EMDB archive
Map data | emd_24829.map.gz | 278.7 MB | EMDB map data format | |
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Header (meta data) | emd-24829-v30.xml emd-24829.xml | 14.9 KB 14.9 KB | Display Display | EMDB header |
FSC (resolution estimation) | emd_24829_fsc.xml | 6.8 KB | Display | FSC data file |
Images | emd_24829.png | 116.9 KB | ||
Filedesc metadata | emd-24829.cif.gz | 5.9 KB | ||
Archive directory | http://ftp.pdbj.org/pub/emdb/structures/EMD-24829 ftp://ftp.pdbj.org/pub/emdb/structures/EMD-24829 | HTTPS FTP |
-Validation report
Summary document | emd_24829_validation.pdf.gz | 571 KB | Display | EMDB validaton report |
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Full document | emd_24829_full_validation.pdf.gz | 570.6 KB | Display | |
Data in XML | emd_24829_validation.xml.gz | 11 KB | Display | |
Data in CIF | emd_24829_validation.cif.gz | 13.8 KB | Display | |
Arichive directory | https://ftp.pdbj.org/pub/emdb/validation_reports/EMD-24829 ftp://ftp.pdbj.org/pub/emdb/validation_reports/EMD-24829 | HTTPS FTP |
-Related structure data
Related structure data | 7s4kMC 7s4hC 7s4iC 7s4jC 7s4lC 7s4mC 7t4oC 7t4pC C: citing same article (ref.) M: atomic model generated by this map |
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Similar structure data | Similarity search - Function & homologyF&H Search |
-Links
EMDB pages | EMDB (EBI/PDBe) / EMDataResource |
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-Map
File | Download / File: emd_24829.map.gz / Format: CCP4 / Size: 307.5 MB / Type: IMAGE STORED AS FLOATING POINT NUMBER (4 BYTES) | ||||||||||||||||||||||||||||||||||||
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Annotation | CryoEM structure of Methylococcus capsulatus (Bath) pMMO in a native lipid nanodisc at 2.36 angstrom resolution | ||||||||||||||||||||||||||||||||||||
Projections & slices | Image control
Images are generated by Spider. | ||||||||||||||||||||||||||||||||||||
Voxel size | X=Y=Z: 0.47222 Å | ||||||||||||||||||||||||||||||||||||
Density |
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Symmetry | Space group: 1 | ||||||||||||||||||||||||||||||||||||
Details | EMDB XML:
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-Supplemental data
-Sample components
+Entire : pMMO complex in a native lipid nanodisc
+Supramolecule #1: pMMO complex in a native lipid nanodisc
+Macromolecule #1: Particulate methane monooxygenase alpha subunit
+Macromolecule #2: Ammonia monooxygenase/methane monooxygenase, subunit C family protein
+Macromolecule #3: Particulate methane monooxygenase beta subunit
+Macromolecule #4: COPPER (II) ION
+Macromolecule #5: DECANE
+Macromolecule #6: DIUNDECYL PHOSPHATIDYL CHOLINE
+Macromolecule #7: 1,2-dihexanoyl-sn-glycero-3-phosphocholine
+Macromolecule #8: 1,2-DIDECANOYL-SN-GLYCERO-3-PHOSPHOCHOLINE
+Macromolecule #9: water
-Experimental details
-Structure determination
Method | cryo EM |
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Processing | single particle reconstruction |
Aggregation state | particle |
-Sample preparation
Buffer | pH: 7.3 |
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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: 52.0 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 |