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Open data
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Basic information
Entry | Database: EMDB / ID: EMD-22528 | |||||||||
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Title | Succinate: quinone oxidoreductase SQR from E.coli K12 | |||||||||
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![]() | Succinate: quinone oxidoreductase SQR from E.coli K12: (Succinate dehydrogenase ... ![]() ![]() | |||||||||
Function / homology | ![]() plasma membrane succinate dehydrogenase complex / ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() | |||||||||
Biological species | ![]() ![]() ![]() | |||||||||
Method | ![]() ![]() | |||||||||
![]() | Lyu M / Su C-C / Morgan CE / Bolla JR / Robinson CV / Yu EW | |||||||||
Funding support | ![]()
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![]() | ![]() Title: A 'Build and Retrieve' methodology to simultaneously solve cryo-EM structures of membrane proteins. Authors: Chih-Chia Su / Meinan Lyu / Christopher E Morgan / Jani Reddy Bolla / Carol V Robinson / Edward W Yu / ![]() ![]() Abstract: Single-particle cryo-electron microscopy (cryo-EM) has become a powerful technique in the field of structural biology. However, the inability to reliably produce pure, homogeneous membrane protein ...Single-particle cryo-electron microscopy (cryo-EM) has become a powerful technique in the field of structural biology. However, the inability to reliably produce pure, homogeneous membrane protein samples hampers the progress of their structural determination. Here, we develop a bottom-up iterative method, Build and Retrieve (BaR), that enables the identification and determination of cryo-EM structures of a variety of inner and outer membrane proteins, including membrane protein complexes of different sizes and dimensions, from a heterogeneous, impure protein sample. We also use the BaR methodology to elucidate structural information from Escherichia coli K12 crude membrane and raw lysate. The findings demonstrate that it is possible to solve high-resolution structures of a number of relatively small (<100 kDa) and less abundant (<10%) unidentified membrane proteins within a single, heterogeneous sample. Importantly, these results highlight the potential of cryo-EM for systems structural proteomics. | |||||||||
Validation Report | ![]() ![]() ![]() ![]() | |||||||||
History |
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Structure visualization
Movie |
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Structure viewer | EM map: ![]() ![]() ![]() |
Supplemental images |
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Downloads & links
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Download
Header (meta data in XML format) |
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Images |
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Others |
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Archive directory |
-Related structure data
Related structure data | ![]() 7jz2CM ![]() 6wtiC ![]() 6wtzC ![]() 6wu0C ![]() 6wu6C ![]() 7jz3C ![]() 7jz6C ![]() 7jzhC C: citing same article ( M: atomic model generated by this map |
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Similar-shape strucutres |
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Links
EMDB pages | ![]() ![]() |
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Related items in Molecule of the Month |
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Map
File | ![]() | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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Projections & slices | Image control
Images are generated by Spider. generated in cubic-lattice coordinate | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Voxel size | X=Y=Z: 1.08 Å | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Density |
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Symmetry | Space group: 1 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Details | EMDB XML:
CCP4 map header:
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-Supplemental data
-Additional map: #1
File | emd_22528_additional_1.map | ||||||||||||
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Projections & Slices |
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Density Histograms |
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Sample components
+Entire Succinate: quinone oxidoreductase SQR from E.coli K12
+Component #1: protein, Succinate: quinone oxidoreductase SQR from E.coli K12
+Component #2: protein, Succinate dehydrogenase flavoprotein subunit
+Component #3: protein, Succinate dehydrogenase iron-sulfur subunit
+Component #4: protein, Succinate dehydrogenase cytochrome b556 subunit
+Component #5: protein, Succinate dehydrogenase hydrophobic membrane anchor subunit
+Component #6: ligand, FLAVIN-ADENINE DINUCLEOTIDE
+Component #7: ligand, SODIUM ION
+Component #8: ligand, FE2/S2 (INORGANIC) CLUSTER
+Component #9: ligand, IRON/SULFUR CLUSTER
+Component #10: ligand, FE3-S4 CLUSTER
+Component #11: ligand, 1,2-DIACYL-SN-GLYCERO-3-PHOSPHOETHANOLAMINE
+Component #12: ligand, PROTOPORPHYRIN IX CONTAINING FE
+Component #13: ligand, UBIQUINONE-2
-Experimental details
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Sample preparation
Specimen | Specimen state: Particle / Method: ![]() |
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Sample solution | pH: 7.5 |
Vitrification | Cryogen name: ETHANE |
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Electron microscopy imaging
Experimental equipment | ![]() Model: Titan Krios / Image courtesy: FEI Company |
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![]() | Microscope: FEI TITAN KRIOS |
Electron gun | Electron source: FIELD EMISSION GUN![]() |
Lens | Imaging mode: BRIGHT FIELD![]() |
Specimen Holder | Model: OTHER |
Camera | Detector: OTHER |
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Image processing
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3D reconstruction | Resolution: 2.5 Å / Resolution method: FSC 0.143 CUT-OFF |
-Atomic model buiding
Output model |
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