+ Open data
Open data
- Basic information
Basic information
| Entry | Database: EMDB / ID: EMD-12740 | |||||||||||||||||||||
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| Title | Structure of the borneol dehydrogenase 1 of salvia rosmarinus | |||||||||||||||||||||
|  Map data | ||||||||||||||||||||||
|  Sample | 
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|  Keywords | TERPENOID / ALCOHOL / OXIDOREDUCTASE / BORNEOL / ROSSMANN-LIKE FOLD | |||||||||||||||||||||
| Biological species |  Salvia rosmarinus (rosemary) | |||||||||||||||||||||
| Method | single particle reconstruction / cryo EM / Resolution: 1.88 Å | |||||||||||||||||||||
|  Authors | Dimos N / Helmer CPO | |||||||||||||||||||||
| Funding support |  Germany,  Austria, 6 items 
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|  Citation |  Journal: Acta Crystallogr D Struct Biol / Year: 2022 Title: CryoEM analysis of small plant biocatalysts at sub-2 Å resolution. Authors: Nicole Dimos / Carl P O Helmer / Andrea M Chánique / Markus C Wahl / Robert Kourist / Tarek Hilal / Bernhard Loll /    Abstract: Enzyme catalysis has emerged as a key technology for developing efficient, sustainable processes in the chemical, biotechnological and pharmaceutical industries. Plants provide large and diverse ...Enzyme catalysis has emerged as a key technology for developing efficient, sustainable processes in the chemical, biotechnological and pharmaceutical industries. Plants provide large and diverse pools of biosynthetic enzymes that facilitate complex reactions, such as the formation of intricate terpene carbon skeletons, with exquisite specificity. High-resolution structural analysis of these enzymes is crucial in order to understand their mechanisms and modulate their properties by targeted engineering. Although cryo-electron microscopy (cryoEM) has revolutionized structural biology, its applicability to high-resolution structural analysis of comparatively small enzymes has so far been largely unexplored. Here, it is shown that cryoEM can reveal the structures of plant borneol dehydrogenases of ∼120 kDa at or below 2 Å resolution, paving the way for the rapid development of new biocatalysts that can provide access to bioactive terpenes and terpenoids. | |||||||||||||||||||||
| History | 
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- Structure visualization
Structure visualization
| Movie | 
 
 
  Movie viewer | 
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| Structure viewer | EM map:  SurfView  Molmil  Jmol/JSmol | 
| Supplemental images | 
- Downloads & links
Downloads & links
-EMDB archive
| Map data |  emd_12740.map.gz | 61.3 MB |  EMDB map data format | |
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| Header (meta data) |  emd-12740-v30.xml  emd-12740.xml | 16.6 KB 16.6 KB | Display Display |  EMDB header | 
| FSC (resolution estimation) |  emd_12740_fsc.xml | 13.3 KB | Display |  FSC data file | 
| Images |  emd_12740.png | 122.5 KB | ||
| Filedesc metadata |  emd-12740.cif.gz | 6.2 KB | ||
| Archive directory |  http://ftp.pdbj.org/pub/emdb/structures/EMD-12740  ftp://ftp.pdbj.org/pub/emdb/structures/EMD-12740 | HTTPS FTP | 
-Validation report
| Summary document |  emd_12740_validation.pdf.gz | 438.9 KB | Display |  EMDB validaton report | 
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| Full document |  emd_12740_full_validation.pdf.gz | 438.5 KB | Display | |
| Data in XML |  emd_12740_validation.xml.gz | 13.4 KB | Display | |
| Data in CIF |  emd_12740_validation.cif.gz | 18.2 KB | Display | |
| Arichive directory |  https://ftp.pdbj.org/pub/emdb/validation_reports/EMD-12740  ftp://ftp.pdbj.org/pub/emdb/validation_reports/EMD-12740 | HTTPS FTP | 
-Related structure data
| Related structure data |  7o6qMC  7o6pC M: atomic model generated by this map C: citing same article ( | 
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| Similar structure data | 
- Links
Links
| EMDB pages |  EMDB (EBI/PDBe) /  EMDataResource | 
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- Map
Map
| File |  Download / File: emd_12740.map.gz / Format: CCP4 / Size: 216 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: 0.657 Å | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Density | 
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| Symmetry | Space group: 1 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Details | EMDB XML: 
 CCP4 map header: 
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-Supplemental data
- Sample components
Sample components
-Entire : Homotetrameric complex of borneol dehydrogenase
| Entire | Name: Homotetrameric complex of borneol dehydrogenase | 
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| Components | 
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-Supramolecule #1: Homotetrameric complex of borneol dehydrogenase
| Supramolecule | Name: Homotetrameric complex of borneol dehydrogenase / type: complex / ID: 1 / Parent: 0 / Macromolecule list: #1 | 
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| Source (natural) | Organism:  Salvia rosmarinus (rosemary) | 
-Macromolecule #1: borneol dehydrogenase
| Macromolecule | Name: borneol dehydrogenase / type: protein_or_peptide / ID: 1 / Number of copies: 4 / Enantiomer: LEVO | 
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| Source (natural) | Organism:  Salvia rosmarinus (rosemary) | 
| Molecular weight | Theoretical: 30.284529 KDa | 
| Recombinant expression | Organism:   Escherichia coli BL21(DE3) (bacteria) | 
| Sequence | String: MGSSHHHHHH SSGLVPRGSH MSCNTAVSRR LEGKVAIVTG GASGIGASTV RLFHDHGAKV VIADIQDDLG QTLADRLGRN  ISYTHCDVT DEDQVRALVD AAVAKHGGVD IMFSNAGIVE GPNSIFDVDK DELERLMGIN LVGAFLAAKH AARVMVPAKK G CIIFTASA  ...String: MGSSHHHHHH SSGLVPRGSH MSCNTAVSRR LEGKVAIVTG GASGIGASTV RLFHDHGAKV VIADIQDDLG QTLADRLGRN  ISYTHCDVT DEDQVRALVD AAVAKHGGVD IMFSNAGIVE GPNSIFDVDK DELERLMGIN LVGAFLAAKH AARVMVPAKK G CIIFTASA CTEIAGIAGH SYTASKYGIV GLMKSLAVEL GSHGIRANCV SPFGVLTGIV PDDEASKLMF EGIMSKVGNL KG KILTAED VAVTVLYLAS EEASYVSGVN LLVDGGYTVV NPTFINVITA GQS | 
-Macromolecule #2: water
| Macromolecule | Name: water / type: ligand / ID: 2 / Number of copies: 399 / Formula: HOH | 
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| Molecular weight | Theoretical: 18.015 Da | 
| Chemical component information |  ChemComp-HOH:  | 
-Experimental details
-Structure determination
| Method | cryo EM | 
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|  Processing | single particle reconstruction | 
| Aggregation state | particle | 
- Sample preparation
Sample preparation
| Concentration | 1 mg/mL | 
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| Buffer | pH: 7.5 | 
| Grid | Model: UltrAuFoil R1.2/1.3 / Support film - Material: GOLD / Support film - topology: HOLEY / Pretreatment - Type: GLOW DISCHARGE / Pretreatment - Time: 60 sec. | 
| Vitrification | Cryogen name: ETHANE / Chamber humidity: 100 % / Instrument: FEI VITROBOT MARK IV | 
- Electron microscopy
Electron microscopy
| Microscope | FEI TITAN KRIOS | 
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| Image recording | Film or detector model: FEI FALCON III (4k x 4k) / Detector mode: COUNTING / Number grids imaged: 1 / Number real images: 1666 / Average exposure time: 30.0 sec. / Average electron dose: 40.0 e/Å2 | 
| Electron beam | Acceleration voltage: 300 kV / Electron source:  FIELD EMISSION GUN | 
| Electron optics | C2 aperture diameter: 50.0 µm / Illumination mode: FLOOD BEAM / Imaging mode: BRIGHT FIELD / Cs: 2.7 mm / Nominal defocus max: 1.6 µm / Nominal defocus min: 0.6 µm / Nominal magnification: 120000 | 
| Sample stage | Specimen holder model: FEI TITAN KRIOS AUTOGRID HOLDER / Cooling holder cryogen: NITROGEN | 
| Experimental equipment |  Model: Titan Krios / Image courtesy: FEI Company | 
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