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Open data
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Basic information
| Entry | Database: PDB / ID: 6ta1 | ||||||
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| Title | Fatty acid synthase of S. cerevisiae | ||||||
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Keywords | BIOSYNTHETIC PROTEIN / megasynthase / complex | ||||||
| Function / homology | Function and homology informationfatty-acyl-CoA synthase system / fatty acid synthase complex / fatty-acyl-CoA synthase activity / palmitoyltransferase activity / [acyl-carrier-protein] S-acetyltransferase / [acyl-carrier-protein] S-acetyltransferase activity / holo-[acyl-carrier-protein] synthase activity / enoyl-[acyl-carrier-protein] reductase (NADPH) activity / [acyl-carrier-protein] S-malonyltransferase / [acyl-carrier-protein] S-malonyltransferase activity ...fatty-acyl-CoA synthase system / fatty acid synthase complex / fatty-acyl-CoA synthase activity / palmitoyltransferase activity / [acyl-carrier-protein] S-acetyltransferase / [acyl-carrier-protein] S-acetyltransferase activity / holo-[acyl-carrier-protein] synthase activity / enoyl-[acyl-carrier-protein] reductase (NADPH) activity / [acyl-carrier-protein] S-malonyltransferase / [acyl-carrier-protein] S-malonyltransferase activity / 3-hydroxyacyl-[acyl-carrier-protein] dehydratase / (3R)-hydroxyacyl-[acyl-carrier-protein] dehydratase activity / beta-ketoacyl-[acyl-carrier-protein] synthase I / 3-oxoacyl-[acyl-carrier-protein] reductase (NADPH) activity / 3-oxoacyl-[acyl-carrier-protein] reductase / oleoyl-[acyl-carrier-protein] hydrolase / fatty acyl-[ACP] hydrolase activity / enoyl-[acyl-carrier-protein] reductase (NADH) / enoyl-[acyl-carrier-protein] reductase (NADH) activity / long-chain fatty acid biosynthetic process / fatty acid synthase activity / 3-oxoacyl-[acyl-carrier-protein] synthase activity / lipid droplet / magnesium ion binding / mitochondrion / cytoplasm / cytosol Similarity search - Function | ||||||
| Biological species | ![]() | ||||||
| Method | ELECTRON MICROSCOPY / single particle reconstruction / cryo EM / Resolution: 3.1 Å | ||||||
Authors | Vonck, J. / D'Imprima, E. / Joppe, M. / Grininger, M. | ||||||
| Funding support | Germany, 1items
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Citation | Journal: IUCrJ / Year: 2020Title: The resolution revolution in cryoEM requires high-quality sample preparation: a rapid pipeline to a high-resolution map of yeast fatty acid synthase. Authors: Mirko Joppe / Edoardo D'Imprima / Nina Salustros / Karthik S Paithankar / Janet Vonck / Martin Grininger / Werner Kühlbrandt / ![]() Abstract: Single-particle electron cryo-microscopy (cryoEM) has undergone a 'resolution revolution' that makes it possible to characterize megadalton (MDa) complexes at atomic resolution without crystals. To ...Single-particle electron cryo-microscopy (cryoEM) has undergone a 'resolution revolution' that makes it possible to characterize megadalton (MDa) complexes at atomic resolution without crystals. To fully exploit the new opportunities in molecular microscopy, new procedures for the cloning, expression and purification of macromolecular complexes need to be explored. Macromolecular assemblies are often unstable, and invasive construct design or inadequate purification conditions and sample-preparation methods can result in disassembly or denaturation. The structure of the 2.6 MDa yeast fatty acid synthase (FAS) has been studied by electron microscopy since the 1960s. Here, a new, streamlined protocol for the rapid production of purified yeast FAS for structure determination by high-resolution cryoEM is reported. Together with a companion protocol for preparing cryoEM specimens on a hydrophilized graphene layer, the new protocol yielded a 3.1 Å resolution map of yeast FAS from 15 000 automatically picked particles within a day. The high map quality enabled a complete atomic model of an intact fungal FAS to be built. | ||||||
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Structure visualization
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| Structure viewer | Molecule: Molmil Jmol/JSmol |
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Downloads & links
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Download
| PDBx/mmCIF format | 6ta1.cif.gz | 3.7 MB | Display | PDBx/mmCIF format |
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| PDB format | pdb6ta1.ent.gz | Display | PDB format | |
| PDBx/mmJSON format | 6ta1.json.gz | Tree view | PDBx/mmJSON format | |
| Others | Other downloads |
-Validation report
| Arichive directory | https://data.pdbj.org/pub/pdb/validation_reports/ta/6ta1 ftp://data.pdbj.org/pub/pdb/validation_reports/ta/6ta1 | HTTPS FTP |
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-Related structure data
| Related structure data | ![]() 10420MC M: map data used to model this data C: citing same article ( |
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| Similar structure data |
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Links
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Assembly
| Deposited unit | ![]()
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Components
| #1: Protein | Mass: 207264.406 Da / Num. of mol.: 6 Source method: isolated from a genetically manipulated source Source: (gene. exp.) ![]() Gene: FAS2, YPL231W, P1409 / Production host: ![]() References: UniProt: P19097, fatty-acyl-CoA synthase system, 3-oxoacyl-[acyl-carrier-protein] reductase, beta-ketoacyl-[acyl-carrier-protein] synthase I #2: Protein | Mass: 228940.375 Da / Num. of mol.: 6 Source method: isolated from a genetically manipulated source Source: (gene. exp.) ![]() Gene: FAS1, YKL182W / Production host: ![]() References: UniProt: P07149, fatty-acyl-CoA synthase system, 3-hydroxyacyl-[acyl-carrier-protein] dehydratase, enoyl-[acyl-carrier-protein] reductase (NADH), [acyl-carrier-protein] S- ...References: UniProt: P07149, fatty-acyl-CoA synthase system, 3-hydroxyacyl-[acyl-carrier-protein] dehydratase, enoyl-[acyl-carrier-protein] reductase (NADH), [acyl-carrier-protein] S-acetyltransferase, [acyl-carrier-protein] S-malonyltransferase, oleoyl-[acyl-carrier-protein] hydrolase #3: Chemical | ChemComp-NDP / #4: Chemical | ChemComp-FMN / Has ligand of interest | N | Has protein modification | 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 |
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Sample preparation
| Component | Name: fatty acid synthase / Type: COMPLEX / Entity ID: #1-#2 / Source: RECOMBINANT |
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| Molecular weight | Value: 2.6 MDa / Experimental value: NO |
| Source (natural) | Organism: ![]() |
| Source (recombinant) | Organism: ![]() |
| Buffer solution | pH: 6.5 |
| Buffer component | Conc.: 100 mM / Name: sodium phosphate |
| Specimen | Embedding applied: NO / Shadowing applied: NO / Staining applied: NO / Vitrification applied: YES |
| Specimen support | Grid material: COPPER / Grid type: Quantifoil R1.2/1.3 |
| Vitrification | Instrument: FEI VITROBOT MARK IV / Cryogen name: ETHANE / Humidity: 70 % / Chamber temperature: 283 K |
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Electron microscopy imaging
| Experimental equipment | ![]() Model: Titan Krios / Image courtesy: FEI Company |
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| Microscopy | Model: FEI TITAN KRIOS |
| Electron gun | Electron source: FIELD EMISSION GUN / Accelerating voltage: 300 kV / Illumination mode: FLOOD BEAM |
| Electron lens | Mode: BRIGHT FIELD / Cs: 2.7 mm / Alignment procedure: COMA FREE |
| Specimen holder | Cryogen: NITROGEN / Specimen holder model: FEI TITAN KRIOS AUTOGRID HOLDER |
| Image recording | Electron dose: 32 e/Å2 / Detector mode: COUNTING / Film or detector model: FEI FALCON III (4k x 4k) / Num. of grids imaged: 1 / Num. of real images: 792 |
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Processing
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| CTF correction | Type: PHASE FLIPPING AND AMPLITUDE CORRECTION | ||||||||||||||||||||||||||||||||||||||||
| Particle selection | Num. of particles selected: 19981 | ||||||||||||||||||||||||||||||||||||||||
| Symmetry | Point symmetry: D3 (2x3 fold dihedral) | ||||||||||||||||||||||||||||||||||||||||
| 3D reconstruction | Resolution: 3.1 Å / Resolution method: FSC 0.143 CUT-OFF / Num. of particles: 15320 / Symmetry type: POINT | ||||||||||||||||||||||||||||||||||||||||
| Atomic model building | PDB-ID: 3HMJ Accession code: 3HMJ / Source name: PDB / Type: experimental model |
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Germany, 1items
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