+Open data
-Basic information
Entry | Database: PDB / ID: 7bvp | |||||||||
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Title | AdhE spirosome in extended conformation | |||||||||
Components | Aldehyde-alcohol dehydrogenase | |||||||||
Keywords | OXIDOREDUCTASE / Spirosome / Aldehyde dehydrogenase / Alcohol dehydrogenase / NADH / HYDROLASE | |||||||||
Function / homology | Function and homology information : / ethanol biosynthetic process / mixed acid fermentation / acetaldehyde dehydrogenase (acetylating) / acetaldehyde dehydrogenase (acetylating) activity / carbon utilization / alcohol dehydrogenase (NAD+) activity / alcohol dehydrogenase / ferrous iron binding / protein homooligomerization ...: / ethanol biosynthetic process / mixed acid fermentation / acetaldehyde dehydrogenase (acetylating) / acetaldehyde dehydrogenase (acetylating) activity / carbon utilization / alcohol dehydrogenase (NAD+) activity / alcohol dehydrogenase / ferrous iron binding / protein homooligomerization / response to oxidative stress / identical protein binding / membrane / cytosol Similarity search - Function | |||||||||
Biological species | Escherichia coli (E. coli) | |||||||||
Method | ELECTRON MICROSCOPY / single particle reconstruction / cryo EM / Resolution: 3.45 Å | |||||||||
Authors | Kim, G.J. / Song, J.J. | |||||||||
Funding support | Korea, Republic Of, 2items
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Citation | Journal: Commun Biol / Year: 2020 Title: Aldehyde-alcohol dehydrogenase undergoes structural transition to form extended spirosomes for substrate channeling. Authors: Gijeong Kim / Jinsol Yang / Juwon Jang / Jin-Seok Choi / Andrew J Roe / Olwyn Byron / Chaok Seok / Ji-Joon Song / Abstract: Aldehyde-alcohol dehydrogenase (AdhE) is an enzyme responsible for converting acetyl-CoA to ethanol via acetaldehyde using NADH. AdhE is composed of two catalytic domains of aldehyde dehydrogenase ...Aldehyde-alcohol dehydrogenase (AdhE) is an enzyme responsible for converting acetyl-CoA to ethanol via acetaldehyde using NADH. AdhE is composed of two catalytic domains of aldehyde dehydrogenase (ALDH) and alcohol dehydrogenase (ADH), and forms a spirosome architecture critical for AdhE activity. Here, we present the atomic resolution (3.43 Å) cryo-EM structure of AdhE spirosomes in an extended conformation. The cryo-EM structure shows that AdhE spirosomes undergo a structural transition from compact to extended forms, which may result from cofactor binding. This transition leads to access to a substrate channel between ALDH and ADH active sites. Furthermore, prevention of this structural transition by crosslinking hampers the activity of AdhE, suggesting that the structural transition is important for AdhE activity. This work provides a mechanistic understanding of the regulation mechanisms of AdhE activity via structural transition, and a platform to modulate AdhE activity for developing antibiotics and for facilitating biofuel production. | |||||||||
History |
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-Structure visualization
Movie |
Movie viewer |
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Structure viewer | Molecule: MolmilJmol/JSmol |
-Downloads & links
-Download
PDBx/mmCIF format | 7bvp.cif.gz | 864.9 KB | Display | PDBx/mmCIF format |
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PDB format | pdb7bvp.ent.gz | 718.9 KB | Display | PDB format |
PDBx/mmJSON format | 7bvp.json.gz | Tree view | PDBx/mmJSON format | |
Others | Other downloads |
-Validation report
Summary document | 7bvp_validation.pdf.gz | 1.5 MB | Display | wwPDB validaton report |
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Full document | 7bvp_full_validation.pdf.gz | 1.6 MB | Display | |
Data in XML | 7bvp_validation.xml.gz | 132.3 KB | Display | |
Data in CIF | 7bvp_validation.cif.gz | 194.1 KB | Display | |
Arichive directory | https://data.pdbj.org/pub/pdb/validation_reports/bv/7bvp ftp://data.pdbj.org/pub/pdb/validation_reports/bv/7bvp | HTTPS FTP |
-Related structure data
Related structure data | 30220MC M: map data used to model this data C: citing same article (ref.) |
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Similar structure data |
-Links
-Assembly
Deposited unit |
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1 |
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-Components
#1: Protein | Mass: 96388.258 Da / Num. of mol.: 6 Source method: isolated from a genetically manipulated source Source: (gene. exp.) Escherichia coli (strain K12) (bacteria) Strain: K12 / Gene: adhE, ana, b1241, JW1228 / Production host: Escherichia coli (E. coli) References: UniProt: P0A9Q7, alcohol dehydrogenase, acetaldehyde dehydrogenase (acetylating) #2: Chemical | ChemComp-NAD / #3: Chemical | ChemComp-ZN / Has ligand of interest | Y | |
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-Experimental details
-Experiment
Experiment | Method: ELECTRON MICROSCOPY |
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EM experiment | Aggregation state: PARTICLE / 3D reconstruction method: single particle reconstruction |
-Sample preparation
Component | Name: AdhE Spirosome in extended conformation / Type: COMPLEX / Entity ID: #1 / Source: RECOMBINANT |
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Molecular weight | Value: 96.3 kDa/nm / Experimental value: NO |
Source (natural) | Organism: Escherichia coli (E. coli) |
Source (recombinant) | Organism: Escherichia coli (E. coli) |
Buffer solution | pH: 8 |
Specimen | Embedding applied: NO / Shadowing applied: NO / Staining applied: NO / Vitrification applied: YES |
Specimen support | Grid material: COPPER / Grid mesh size: 200 divisions/in. / Grid type: Quantifoil R2/2 |
Vitrification | Cryogen name: ETHANE |
-Electron microscopy imaging
Microscopy | Model: TFS GLACIOS |
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Electron gun | Electron source: FIELD EMISSION GUN / Accelerating voltage: 200 kV / Illumination mode: FLOOD BEAM |
Electron lens | Mode: BRIGHT FIELD |
Image recording | Electron dose: 40.76 e/Å2 / Film or detector model: FEI FALCON III (4k x 4k) |
-Processing
EM software |
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CTF correction | Type: PHASE FLIPPING AND AMPLITUDE CORRECTION | ||||||||||||||||||||||||||||||||||||
Particle selection | Num. of particles selected: 412581 | ||||||||||||||||||||||||||||||||||||
Symmetry | Point symmetry: C1 (asymmetric) | ||||||||||||||||||||||||||||||||||||
3D reconstruction | Resolution: 3.45 Å / Resolution method: FSC 0.143 CUT-OFF / Num. of particles: 71599 / Symmetry type: POINT | ||||||||||||||||||||||||||||||||||||
Atomic model building | Protocol: AB INITIO MODEL |