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Yorodumi- PDB-7whw: Cryo-EM structure of Dnf1 from Saccharomyces cerevisiae in deterg... -
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-Basic information
Entry | Database: PDB / ID: 7whw | ||||||
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Title | Cryo-EM structure of Dnf1 from Saccharomyces cerevisiae in detergent with AMPPCP (E1-ATP state) | ||||||
Components |
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Keywords | LIPID TRANSPORT / P4-ATPases | ||||||
Function / homology | Function and homology information regulation of vacuole organization / glycosylceramide flippase activity / mating projection tip membrane / aminophospholipid translocation / Ion transport by P-type ATPases / phosphatidylcholine flippase activity / phosphatidylserine flippase activity / ceramide translocation / ATPase-coupled intramembrane lipid transporter activity / phospholipid-translocating ATPase complex ...regulation of vacuole organization / glycosylceramide flippase activity / mating projection tip membrane / aminophospholipid translocation / Ion transport by P-type ATPases / phosphatidylcholine flippase activity / phosphatidylserine flippase activity / ceramide translocation / ATPase-coupled intramembrane lipid transporter activity / phospholipid-translocating ATPase complex / phosphatidylserine floppase activity / cell septum / phosphatidylethanolamine flippase activity / phosphatidylcholine floppase activity / cellular bud neck / P-type phospholipid transporter / phospholipid translocation / establishment or maintenance of cell polarity / Neutrophil degranulation / cell periphery / intracellular protein transport / endocytosis / cell surface receptor signaling pathway / endosome membrane / Golgi apparatus / magnesium ion binding / endoplasmic reticulum / ATP hydrolysis activity / mitochondrion / ATP binding / identical protein binding / plasma membrane / cytoplasm Similarity search - Function | ||||||
Biological species | Saccharomyces cerevisiae S288C (yeast) | ||||||
Method | ELECTRON MICROSCOPY / single particle reconstruction / cryo EM / Resolution: 3.1 Å | ||||||
Authors | Xu, J. / He, Y. / Wu, X. / Li, L. | ||||||
Funding support | China, 1items
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Citation | Journal: Cell Rep / Year: 2022 Title: Conformational changes of a phosphatidylcholine flippase in lipid membranes. Authors: Jinkun Xu / Yilin He / Xiaofei Wu / Long Li / Abstract: Type 4 P-type ATPases (P4-ATPases) actively and selectively translocate phospholipids across membrane bilayers. Driven by ATP hydrolysis, P4-ATPases undergo conformational changes during lipid ...Type 4 P-type ATPases (P4-ATPases) actively and selectively translocate phospholipids across membrane bilayers. Driven by ATP hydrolysis, P4-ATPases undergo conformational changes during lipid flipping. It is unclear how the active flipping states of P4-ATPases are regulated in the lipid membranes, especially for phosphatidylcholine (PC)-flipping P4-ATPases whose substrate, PC, is a substantial component of membranes. Here, we report the cryoelectron microscopy structures of a yeast PC-flipping P4-ATPase, Dnf1, in lipid environments. In native yeast lipids, Dnf1 adopts a conformation in which the lipid flipping pathway is disrupted. Only when the lipid composition is changed can Dnf1 be captured in the active conformations that enable lipid flipping. These results suggest that, in the native membrane, Dnf1 may stay in an idle conformation that is unable to support the trans-membrane movement of lipids. Dnf1 may have altered conformational preferences in membranes with different lipid compositions. | ||||||
History |
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-Structure visualization
Structure viewer | Molecule: MolmilJmol/JSmol |
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-Downloads & links
-Download
PDBx/mmCIF format | 7whw.cif.gz | 286.5 KB | Display | PDBx/mmCIF format |
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PDB format | pdb7whw.ent.gz | 219.8 KB | Display | PDB format |
PDBx/mmJSON format | 7whw.json.gz | Tree view | PDBx/mmJSON format | |
Others | Other downloads |
-Validation report
Summary document | 7whw_validation.pdf.gz | 893.3 KB | Display | wwPDB validaton report |
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Full document | 7whw_full_validation.pdf.gz | 909.3 KB | Display | |
Data in XML | 7whw_validation.xml.gz | 45.9 KB | Display | |
Data in CIF | 7whw_validation.cif.gz | 68.6 KB | Display | |
Arichive directory | https://data.pdbj.org/pub/pdb/validation_reports/wh/7whw ftp://data.pdbj.org/pub/pdb/validation_reports/wh/7whw | HTTPS FTP |
-Related structure data
Related structure data | 32513MC 7drxC 7dshC 7dsiC 7f7fC 7whvC M: map data used to model this data C: citing same article (ref.) |
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Similar structure data | Similarity search - Function & homologyF&H Search |
-Links
-Assembly
Deposited unit |
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1 |
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-Components
#1: Protein | Mass: 178000.172 Da / Num. of mol.: 1 Source method: isolated from a genetically manipulated source Source: (gene. exp.) Saccharomyces cerevisiae S288C (yeast) / Strain: ATCC 204508 / S288c / Gene: DNF1, YER166W, SYGP-ORF7 / Production host: Saccharomyces cerevisiae S288C (yeast) References: UniProt: P32660, P-type phospholipid transporter |
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#2: Protein | Mass: 47490.395 Da / Num. of mol.: 1 Source method: isolated from a genetically manipulated source Source: (gene. exp.) Saccharomyces cerevisiae S288C (yeast) / Strain: ATCC 204508 / S288c / Gene: LEM3, BRE3, ROS3, YNL323W, N0333 / Production host: Saccharomyces cerevisiae S288C (yeast) / References: UniProt: P42838 |
#3: Polysaccharide | beta-D-mannopyranose-(1-4)-2-acetamido-2-deoxy-beta-D-glucopyranose-(1-4)-2-acetamido-2-deoxy-beta- ...beta-D-mannopyranose-(1-4)-2-acetamido-2-deoxy-beta-D-glucopyranose-(1-4)-2-acetamido-2-deoxy-beta-D-glucopyranose Source method: isolated from a genetically manipulated source |
#4: Chemical | ChemComp-ACP / |
#5: Chemical | ChemComp-MG / |
Has ligand of interest | N |
Has protein modification | Y |
-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: Dnf1_Lem3 complex / Type: COMPLEX / Entity ID: #1-#2 / Source: RECOMBINANT |
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Source (natural) | Organism: Saccharomyces cerevisiae S288C (yeast) |
Source (recombinant) | Organism: Saccharomyces cerevisiae S288C (yeast) |
Buffer solution | pH: 7.5 |
Specimen | Embedding applied: NO / Shadowing applied: NO / Staining applied: NO / Vitrification applied: YES |
Vitrification | Cryogen name: NITROGEN |
-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: SPOT SCAN |
Electron lens | Mode: BRIGHT FIELD / Nominal defocus max: 2000 nm / Nominal defocus min: 1000 nm |
Image recording | Electron dose: 8 e/Å2 / Film or detector model: GATAN K3 (6k x 4k) |
-Processing
Software | Name: PHENIX / Classification: refinement | ||||||||||||||||||||||||
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CTF correction | Type: PHASE FLIPPING AND AMPLITUDE CORRECTION | ||||||||||||||||||||||||
3D reconstruction | Resolution: 3.1 Å / Resolution method: FSC 0.33 CUT-OFF / Num. of particles: 295853 / Symmetry type: POINT | ||||||||||||||||||||||||
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