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Yorodumi- PDB-8xik: Structure of acyltransferase GWT1 in complex with manogepix(APX001A) -
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Open data
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Basic information
| Entry | Database: PDB / ID: 8xik | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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| Title | Structure of acyltransferase GWT1 in complex with manogepix(APX001A) | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Components | GPI-anchored wall transfer protein 1 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Keywords | MEMBRANE PROTEIN/INHIBITOR / acyltransferase / MEMBRANE PROTEIN-INHIBITOR COMPLEX | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Function / homology | Function and homology informationglucosaminyl-phosphatidylinositol O-acyltransferase activity / Synthesis of glycosylphosphatidylinositol (GPI) / Transferases; Acyltransferases / GPI anchor biosynthetic process / nuclear outer membrane-endoplasmic reticulum membrane network / endoplasmic reticulum membrane / endoplasmic reticulum / membrane Similarity search - Function | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Biological species | ![]() | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Method | ELECTRON MICROSCOPY / single particle reconstruction / cryo EM / Resolution: 3.55 Å | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Authors | Dai, X.L. / Li, J.L. / Liu, X.Z. / Deng, D. / Wang, X. | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Funding support | China, 1items
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Citation | Journal: Nat Commun / Year: 2024Title: Structural insights into the inhibition mechanism of fungal GWT1 by manogepix. Authors: Xinli Dai / Xuanzhong Liu / Jialu Li / Hui Chen / Chuangye Yan / Yaozong Li / Hanmin Liu / Dong Deng / Xiang Wang / ![]() Abstract: Glycosylphosphatidylinositol (GPI) acyltransferase is crucial for the synthesis of GPI-anchored proteins. Targeting the fungal glycosylphosphatidylinositol acyltransferase GWT1 by manogepix is a ...Glycosylphosphatidylinositol (GPI) acyltransferase is crucial for the synthesis of GPI-anchored proteins. Targeting the fungal glycosylphosphatidylinositol acyltransferase GWT1 by manogepix is a promising antifungal strategy. However, the inhibitory mechanism of manogepix remains unclear. Here, we present cryo-EM structures of yeast GWT1 bound to the substrate (palmitoyl-CoA) and inhibitor (manogepix) at 3.3 Å and 3.5 Å, respectively. GWT1 adopts a unique fold with 13 transmembrane (TM) helixes. The palmitoyl-CoA inserts into the chamber among TM4, 5, 6, 7, and 12. The crucial residues (D145 and K155) located on the loop between TM4 and TM5 potentially bind to the GPI precursor, contributing to substrate recognition and catalysis, respectively. The antifungal drug, manogepix, occupies the hydrophobic cavity of the palmitoyl-CoA binding site, suggesting a competitive inhibitory mechanism. Structural analysis of resistance mutations elucidates the drug specificity and selectivity. These findings pave the way for the development of potent and selective antifungal drugs targeting GWT1. | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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Structure visualization
| Structure viewer | Molecule: Molmil Jmol/JSmol |
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Downloads & links
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Download
| PDBx/mmCIF format | 8xik.cif.gz | 94.2 KB | Display | PDBx/mmCIF format |
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| PDB format | pdb8xik.ent.gz | Display | PDB format | |
| PDBx/mmJSON format | 8xik.json.gz | Tree view | PDBx/mmJSON format | |
| Others | Other downloads |
-Validation report
| Summary document | 8xik_validation.pdf.gz | 1.4 MB | Display | wwPDB validaton report |
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| Full document | 8xik_full_validation.pdf.gz | 1.4 MB | Display | |
| Data in XML | 8xik_validation.xml.gz | 29.5 KB | Display | |
| Data in CIF | 8xik_validation.cif.gz | 42.3 KB | Display | |
| Arichive directory | https://data.pdbj.org/pub/pdb/validation_reports/xi/8xik ftp://data.pdbj.org/pub/pdb/validation_reports/xi/8xik | HTTPS FTP |
-Related structure data
| Related structure data | ![]() 38375MC ![]() 8xijC M: map data used to model this data C: citing same article ( |
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| Similar structure data | Similarity search - Function & homology F&H Search |
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Links
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Assembly
| Deposited unit | ![]()
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Components
| #1: Protein | Mass: 55511.918 Da / Num. of mol.: 1 Source method: isolated from a genetically manipulated source Source: (gene. exp.) ![]() Gene: GWT1 / Production host: ![]() |
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| #2: Chemical | ChemComp-A1LVI / Mass: 358.393 Da / Num. of mol.: 1 / Source method: obtained synthetically / Formula: C21H18N4O2 / Feature type: SUBJECT OF INVESTIGATION |
| Has ligand of interest | Y |
| Has protein modification | N |
-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: Complex of GWT1 and inhibitor APX001A / Type: COMPLEX / Entity ID: #1 / Source: RECOMBINANT |
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| Source (natural) | Organism: ![]() |
| Source (recombinant) | Organism: ![]() |
| Buffer solution | pH: 7.5 |
| Specimen | Embedding applied: NO / Shadowing applied: NO / Staining applied: NO / Vitrification applied: YES |
| Vitrification | Cryogen name: ETHANE |
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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 / Nominal defocus max: 1800 nm / Nominal defocus min: 1200 nm |
| Image recording | Electron dose: 50 e/Å2 / Film or detector model: GATAN K2 SUMMIT (4k x 4k) |
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Processing
| EM software | Name: PHENIX / Category: model refinement | ||||||||||||||||||||||||
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| CTF correction | Type: NONE | ||||||||||||||||||||||||
| 3D reconstruction | Resolution: 3.55 Å / Resolution method: FSC 0.143 CUT-OFF / Num. of particles: 252957 / Symmetry type: POINT | ||||||||||||||||||||||||
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