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- EMDB-38375: Structure of acyltransferase GWT1 in complex with manogepix(APX001A) -
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Open data
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Basic information
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Title | Structure of acyltransferase GWT1 in complex with manogepix(APX001A) | |||||||||
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![]() | acyltransferase / MEMBRANE PROTEIN-INHIBITOR COMPLEX | |||||||||
Function / homology | ![]() glucosaminyl-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 | single particle reconstruction / cryo EM / Resolution: 3.55 Å | |||||||||
![]() | Dai XL / Li JL / Liu XZ / Deng D / Wang X | |||||||||
Funding support | ![]()
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![]() | ![]() Title: 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. | |||||||||
History |
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Structure visualization
Supplemental images |
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Downloads & links
-EMDB archive
Map data | ![]() | 59.3 MB | ![]() | |
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Header (meta data) | ![]() ![]() | 13.9 KB 13.9 KB | Display Display | ![]() |
FSC (resolution estimation) | ![]() | 8.4 KB | Display | ![]() |
Images | ![]() | 89.9 KB | ||
Masks | ![]() | 64 MB | ![]() | |
Filedesc metadata | ![]() | 5.6 KB | ||
Others | ![]() ![]() | 59.3 MB 59.3 MB | ||
Archive directory | ![]() ![]() | HTTPS FTP |
-Related structure data
Related structure data | ![]() 8xikMC ![]() 8xijC M: atomic model generated by this map C: citing same article ( |
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Similar structure data | Similarity search - Function & homology ![]() |
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Links
EMDB pages | ![]() ![]() |
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Map
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Projections & slices | Image control
Images are generated by Spider. | ||||||||||||||||||||||||||||||||||||
Voxel size | X=Y=Z: 1.1 Å | ||||||||||||||||||||||||||||||||||||
Density |
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Symmetry | Space group: 1 | ||||||||||||||||||||||||||||||||||||
Details | EMDB XML:
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-Supplemental data
-Mask #1
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-Half map: #2
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-Half map: #1
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Density Histograms |
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Sample components
-Entire : Complex of GWT1 and inhibitor APX001A
Entire | Name: Complex of GWT1 and inhibitor APX001A |
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Components |
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-Supramolecule #1: Complex of GWT1 and inhibitor APX001A
Supramolecule | Name: Complex of GWT1 and inhibitor APX001A / type: complex / ID: 1 / Parent: 0 / Macromolecule list: #1 |
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Source (natural) | Organism: ![]() ![]() |
-Macromolecule #1: GPI-anchored wall transfer protein 1
Macromolecule | Name: GPI-anchored wall transfer protein 1 / type: protein_or_peptide / ID: 1 / Number of copies: 1 / Enantiomer: LEVO / EC number: Transferases; Acyltransferases |
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Source (natural) | Organism: ![]() ![]() |
Molecular weight | Theoretical: 55.511918 KDa |
Recombinant expression | Organism: ![]() ![]() |
Sequence | String: MSTLKQRKED FVTGLNGGSI TEINAVTSIA LVTYISWNLL KNSNLMPPGI SSVQYIIDFA LNWVALLLSI TIYASEPYLL NTLILLPCL LAFIYGKFTS SSKPSNPIYN KKKMITQRFQ LEKKPYITAY RGGMLILTAI AILAVDFPIF PRRFAKVETW G TSLMDLGV ...String: MSTLKQRKED FVTGLNGGSI TEINAVTSIA LVTYISWNLL KNSNLMPPGI SSVQYIIDFA LNWVALLLSI TIYASEPYLL NTLILLPCL LAFIYGKFTS SSKPSNPIYN KKKMITQRFQ LEKKPYITAY RGGMLILTAI AILAVDFPIF PRRFAKVETW G TSLMDLGV GSFVFSNGIV SSRALLKNLS LKSKPSFLKN AFNALKSGGT LLFLGLLRLF FVKNLEYQEH VTEYGVHWNF FI TLSLLPL VLTFIDPVTR MVPRCSIAIF ISCIYEWLLL KDDRTLNFLI LADRNCFFSA NREGIFSFLG YCSIFLWGQN TGF YLLGNK PTLNNLYKPS TQDVVAASKK SSTWDYWTSV TPLSGLCIWS TIFLVISQLV FQYHPYSVSR RFANLPYTLW VITY NLLFL TGYCLTDKIF GNSSEYYKVA ECLESINSNG LFLFLLANVS TGLVNMSMVT IDSSPLKSFL VLLAYCSFIA VISVF LYRK RIFIKL UniProtKB: GPI-anchored wall transfer protein 1 |
-Macromolecule #2: 3-[3-[[4-(pyridin-2-yloxymethyl)phenyl]methyl]-1,2-oxazol-5-yl]py...
Macromolecule | Name: 3-[3-[[4-(pyridin-2-yloxymethyl)phenyl]methyl]-1,2-oxazol-5-yl]pyridin-2-amine type: ligand / ID: 2 / Number of copies: 1 / Formula: A1LVI |
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Molecular weight | Theoretical: 358.393 Da |
-Experimental details
-Structure determination
Method | cryo EM |
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![]() | single particle reconstruction |
Aggregation state | particle |
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Sample preparation
Buffer | pH: 7.5 |
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Vitrification | Cryogen name: ETHANE |
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Electron microscopy
Microscope | FEI TITAN KRIOS |
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Image recording | Film or detector model: GATAN K2 SUMMIT (4k x 4k) / Average electron dose: 50.0 e/Å2 |
Electron beam | Acceleration voltage: 300 kV / Electron source: ![]() |
Electron optics | Illumination mode: FLOOD BEAM / Imaging mode: BRIGHT FIELD / Nominal defocus max: 1.8 µm / Nominal defocus min: 1.2 µm |
Experimental equipment | ![]() Model: Titan Krios / Image courtesy: FEI Company |