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- EMDB-10496: Cryo-EM Structure of as isolated form of NAD+-dependent Formate D... -
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Open data
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Basic information
Entry | Database: EMDB / ID: EMD-10496 | ||||||||||||
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Title | Cryo-EM Structure of as isolated form of NAD+-dependent Formate Dehydrogenase from Rhodobacter capsulatus | ||||||||||||
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![]() | molybdoenzyme / formate oxidation / NAD+-dependent / OXIDOREDUCTASE | ||||||||||||
Function / homology | ![]() formate dehydrogenase complex / formate dehydrogenase / formate metabolic process / formate dehydrogenase / formate dehydrogenase (NAD+) activity / molybdopterin cofactor binding / NADH dehydrogenase (ubiquinone) activity / 2 iron, 2 sulfur cluster binding / FMN binding / 4 iron, 4 sulfur cluster binding ...formate dehydrogenase complex / formate dehydrogenase / formate metabolic process / formate dehydrogenase / formate dehydrogenase (NAD+) activity / molybdopterin cofactor binding / NADH dehydrogenase (ubiquinone) activity / 2 iron, 2 sulfur cluster binding / FMN binding / 4 iron, 4 sulfur cluster binding / electron transfer activity / oxidoreductase activity / metal ion binding Similarity search - Function | ||||||||||||
Biological species | ![]() | ||||||||||||
Method | single particle reconstruction / cryo EM / Resolution: 3.26 Å | ||||||||||||
![]() | Wendler P / Radon C | ||||||||||||
Funding support | ![]()
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![]() | ![]() Title: Cryo-EM structures reveal intricate Fe-S cluster arrangement and charging in Rhodobacter capsulatus formate dehydrogenase. Authors: Christin Radon / Gerd Mittelstädt / Benjamin R Duffus / Jörg Bürger / Tobias Hartmann / Thorsten Mielke / Christian Teutloff / Silke Leimkühler / Petra Wendler / ![]() ![]() Abstract: Metal-containing formate dehydrogenases (FDH) catalyse the reversible oxidation of formate to carbon dioxide at their molybdenum or tungsten active site. They display a diverse subunit and cofactor ...Metal-containing formate dehydrogenases (FDH) catalyse the reversible oxidation of formate to carbon dioxide at their molybdenum or tungsten active site. They display a diverse subunit and cofactor composition, but structural information on these enzymes is limited. Here we report the cryo-electron microscopic structures of the soluble Rhodobacter capsulatus FDH (RcFDH) as isolated and in the presence of reduced nicotinamide adenine dinucleotide (NADH). RcFDH assembles into a 360 kDa dimer of heterotetramers revealing a putative interconnection of electron pathway chains. In the presence of NADH, the RcFDH structure shows charging of cofactors, indicative of an increased electron load. | ||||||||||||
History |
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Structure visualization
Movie |
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Structure viewer | EM map: ![]() ![]() ![]() |
Supplemental images |
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Downloads & links
-EMDB archive
Map data | ![]() | 22 MB | ![]() | |
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Header (meta data) | ![]() ![]() | 18.9 KB 18.9 KB | Display Display | ![]() |
FSC (resolution estimation) | ![]() | 13.7 KB | Display | ![]() |
Images | ![]() | 91.7 KB | ||
Filedesc metadata | ![]() | 7.2 KB | ||
Archive directory | ![]() ![]() | HTTPS FTP |
-Related structure data
Related structure data | ![]() 6tgaMC ![]() 6tg9C M: atomic model generated by this map C: citing same article ( |
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Similar structure data |
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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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Voxel size | X=Y=Z: 0.628 Å | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Density |
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Symmetry | Space group: 1 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Details | EMDB XML:
CCP4 map header:
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-Supplemental data
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Sample components
+Entire : Formate dehydrogenase, as isolated
+Supramolecule #1: Formate dehydrogenase, as isolated
+Macromolecule #1: Formate dehydrogenase subunit alpha
+Macromolecule #2: Formate dehydrogenase subunit beta
+Macromolecule #3: Formate dehydrogenase subunit gamma
+Macromolecule #4: NAD-dependent formate dehydrogenase subunit delta
+Macromolecule #5: 2-AMINO-5,6-DIMERCAPTO-7-METHYL-3,7,8A,9-TETRAHYDRO-8-OXA-1,3,9,1...
+Macromolecule #6: MOLYBDENUM(VI) ION
+Macromolecule #7: FE2/S2 (INORGANIC) CLUSTER
+Macromolecule #8: IRON/SULFUR CLUSTER
+Macromolecule #9: HYDROSULFURIC ACID
+Macromolecule #10: FLAVIN MONONUCLEOTIDE
-Experimental details
-Structure determination
Method | cryo EM |
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![]() | single particle reconstruction |
Aggregation state | particle |
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Sample preparation
Concentration | 0.1 mg/mL | ||||||
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Buffer | pH: 7.5 Component:
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Grid | Model: Quantifoil R2/4 / Material: COPPER / Mesh: 300 / Support film - Material: CARBON / Support film - topology: HOLEY / Pretreatment - Type: GLOW DISCHARGE / Pretreatment - Time: 30 sec. / Pretreatment - Atmosphere: AIR | ||||||
Vitrification | Cryogen name: ETHANE |
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Electron microscopy
Microscope | FEI POLARA 300 |
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Image recording | Film or detector model: GATAN K2 SUMMIT (4k x 4k) / Detector mode: SUPER-RESOLUTION / Average electron dose: 64.0 e/Å2 |
Electron beam | Acceleration voltage: 300 kV / Electron source: ![]() |
Electron optics | Illumination mode: FLOOD BEAM / Imaging mode: BRIGHT FIELD |
Sample stage | Cooling holder cryogen: NITROGEN |
Experimental equipment | ![]() Model: Tecnai Polara / Image courtesy: FEI Company |
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Image processing
-Atomic model buiding 1
Refinement | Space: REAL / Protocol: BACKBONE TRACE |
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Output model | ![]() PDB-6tga: |