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- EMDB-61314: Cryo-EM structure of the human LYCHOS PLD homodimer -

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Basic information

Entry
Database: EMDB / ID: EMD-61314
TitleCryo-EM structure of the human LYCHOS PLD homodimer
Map data
Sample
  • Complex: Homodimer of the human GPR155 PLD
    • Protein or peptide: Lysosomal cholesterol signaling protein
  • Ligand: 1,2-Distearoyl-sn-glycerophosphoethanolamine
  • Ligand: CARDIOLIPIN
Keywordspermease-like domain / GPCR-like domain / cholesterol / mTORC1 / MEMBRANE PROTEIN
Function / homology
Function and homology information


cellular response to cholesterol / cholesterol binding / negative regulation of BMP signaling pathway / positive regulation of TORC1 signaling / cellular response to amino acid starvation / transmembrane transport / cognition / intracellular signal transduction / lysosomal membrane / extracellular exosome
Similarity search - Function
Integral membrane protein GPR155, DEP domain / Membrane transport protein / Membrane transport protein / : / Domain found in Dishevelled, Egl-10, and Pleckstrin (DEP) / DEP domain profile. / Domain found in Dishevelled, Egl-10, and Pleckstrin / DEP domain / Winged helix DNA-binding domain superfamily / Winged helix-like DNA-binding domain superfamily
Similarity search - Domain/homology
Lysosomal cholesterol signaling protein
Similarity search - Component
Biological speciesHomo sapiens (human)
Methodsingle particle reconstruction / cryo EM / Resolution: 2.73 Å
AuthorsYu S / Liang L
Funding support China, 1 items
OrganizationGrant numberCountry
National Natural Science Foundation of China (NSFC)32171224 China
CitationJournal: To Be Published
Title: Structural insights into cholesterol sensing by the LYCHOS-mTORC1 pathway
Authors: Yu S / Liang L
History
DepositionAug 27, 2024-
Header (metadata) releaseJul 16, 2025-
Map releaseJul 16, 2025-
UpdateJul 16, 2025-
Current statusJul 16, 2025Processing site: PDBj / Status: Released

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Structure visualization

Supplemental images

emd_61314.png

Downloads & links

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Map

FileDownload / File: emd_61314.map.gz / Format: CCP4 / Size: 244.1 MB / Type: IMAGE STORED AS FLOATING POINT NUMBER (4 BYTES)
Projections & slices

Image control

Size
Brightness
Contrast
Others
AxesZ (Sec.)Y (Row.)X (Col.)
0.81 Å/pix.
x 400 pix.
= 323.2 Å		0.81 Å/pix.
x 400 pix.
= 323.2 Å		0.81 Å/pix.
x 400 pix.
= 323.2 Å

Surface

Projections

Slices (1/3)

Slices (1/2)

Slices (2/3)

Images are generated by Spider.

Voxel sizeX=Y=Z: 0.808 Å
Density

Histogram

Histogram (log scale)
Contour LevelBy AUTHOR: 0.27
Minimum - Maximum-2.138909 - 3.3841426
Average (Standard dev.)-0.00049680535 (±0.040201135)
SymmetrySpace group: 1
Details

EMDB XML:

Map geometry
Axis orderXYZ
Origin000
Dimensions400400400
Spacing400400400
CellA=B=C: 323.2 Å
α=β=γ: 90.0 °

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Supplemental data

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Half map: #2

Fileemd_61314_half_map_1.map
Projections & Slices
AxesZYX

Projections

Slices (1/2)
Density Histograms

Histogram

Histogram (log scale)

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Half map: #1

Fileemd_61314_half_map_2.map
Projections & Slices
AxesZYX

Projections

Slices (1/2)
Density Histograms

Histogram

Histogram (log scale)

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Sample components

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Entire : Homodimer of the human GPR155 PLD

EntireName: Homodimer of the human GPR155 PLD
Components
  • Complex: Homodimer of the human GPR155 PLD
    • Protein or peptide: Lysosomal cholesterol signaling protein
  • Ligand: 1,2-Distearoyl-sn-glycerophosphoethanolamine
  • Ligand: CARDIOLIPIN

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Supramolecule #1: Homodimer of the human GPR155 PLD

SupramoleculeName: Homodimer of the human GPR155 PLD / type: complex / ID: 1 / Parent: 0 / Macromolecule list: #1
Source (natural)Organism: Homo sapiens (human)

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Macromolecule #1: Lysosomal cholesterol signaling protein

MacromoleculeName: Lysosomal cholesterol signaling protein / type: protein_or_peptide / ID: 1 / Number of copies: 2 / Enantiomer: LEVO
Source (natural)Organism: Homo sapiens (human)
Molecular weightTheoretical: 41.86925 KDa
Recombinant expressionOrganism: Spodoptera frugiperda (fall armyworm)
SequenceString: MNSNLPAENL TIAVNMTKTL PTAVTHGFNS TNDPPSMSIT RLFPALLECF GIVLCGYIAG RANVITSTQA KGLGNFVSRF ALPALLFKN MVVLNFSNVD WSFLYSILIA KASVFFIVCV LTLLVASPDS RFSKAGLFPI FATQSNDFAL GYPIVEALYQ T TYPEYLQY ...String:
MNSNLPAENL TIAVNMTKTL PTAVTHGFNS TNDPPSMSIT RLFPALLECF GIVLCGYIAG RANVITSTQA KGLGNFVSRF ALPALLFKN MVVLNFSNVD WSFLYSILIA KASVFFIVCV LTLLVASPDS RFSKAGLFPI FATQSNDFAL GYPIVEALYQ T TYPEYLQY IYLVAPISLM MLNPIGFIFC EIQKWKDTQN ASQNKIKIVG LGLLRVLQNP IVFMVFIGIA FNFILDRKVP VY VENFLDG LGNSFSGSAL FYLGLTMVGK IKRLKKSAFV VLILLITAKL LVLPLLCREM VELLDKGDSV VNHTSLSNYA FLY GVFPVA PGVAIFATQF NMEVEIITSG MVISTFVSAP IMYVSAWLLT FPTMSRENLY FQ

UniProtKB: Lysosomal cholesterol signaling protein

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Macromolecule #2: 1,2-Distearoyl-sn-glycerophosphoethanolamine

MacromoleculeName: 1,2-Distearoyl-sn-glycerophosphoethanolamine / type: ligand / ID: 2 / Number of copies: 6 / Formula: 3PE
Molecular weightTheoretical: 748.065 Da
Chemical component information

ChemComp-3PE:
1,2-Distearoyl-sn-glycerophosphoethanolamine / phospholipid*YM

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Macromolecule #3: CARDIOLIPIN

MacromoleculeName: CARDIOLIPIN / type: ligand / ID: 3 / Number of copies: 2 / Formula: CDL
Molecular weightTheoretical: 1.464043 KDa
Chemical component information

ChemComp-CDL:
CARDIOLIPIN / phospholipid*YM

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Experimental details

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Structure determination

Methodcryo EM
Processingsingle particle reconstruction
Aggregation stateparticle

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Sample preparation

Concentration2.6 mg/mL
BufferpH: 7.4
VitrificationCryogen name: ETHANE

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Electron microscopy

MicroscopeFEI TITAN KRIOS
Image recordingFilm or detector model: FEI FALCON IV (4k x 4k) / Average electron dose: 51.62 e/Å2
Electron beamAcceleration voltage: 300 kV / Electron source: FIELD EMISSION GUN
Electron opticsIllumination mode: FLOOD BEAM / Imaging mode: BRIGHT FIELD / Nominal defocus max: 1.6 µm / Nominal defocus min: 1.2 µm
Experimental equipment
Model: Titan Krios / Image courtesy: FEI Company

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Image processing

CTF correctionType: PHASE FLIPPING AND AMPLITUDE CORRECTION
Startup modelType of model: INSILICO MODEL
Final reconstructionResolution.type: BY AUTHOR / Resolution: 2.73 Å / Resolution method: FSC 0.143 CUT-OFF / Number images used: 128416
Initial angle assignmentType: MAXIMUM LIKELIHOOD
Final angle assignmentType: MAXIMUM LIKELIHOOD
FSC plot (resolution estimation)

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