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- EMDB-61315: Cryo-EM structure of the human LYCHOS Y57A non-canonical dimer in... -

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Basic information

Entry
Database: EMDB / ID: EMD-61315
TitleCryo-EM structure of the human LYCHOS Y57A non-canonical dimer in the expanded state
Map data
Sample
  • Complex: LYCHOS Y57A mutant
    • Protein or peptide: Lysosomal cholesterol signaling protein
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: 4.49 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_61315.png

Downloads & links

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Map

FileDownload / File: emd_61315.map.gz / Format: CCP4 / Size: 512 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 512 pix.
= 413.696 Å		0.81 Å/pix.
x 512 pix.
= 413.696 Å		0.81 Å/pix.
x 512 pix.
= 413.696 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: 0.16
Minimum - Maximum-0.40520692 - 0.89327985
Average (Standard dev.)0.00026932918 (±0.0145266615)
SymmetrySpace group: 1
Details

EMDB XML:

Map geometry
Axis orderXYZ
Origin000
Dimensions512512512
Spacing512512512
CellA=B=C: 413.696 Å
α=β=γ: 90.0 °

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Supplemental data

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Half map: #2

Fileemd_61315_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_61315_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 : LYCHOS Y57A mutant

EntireName: LYCHOS Y57A mutant
Components
  • Complex: LYCHOS Y57A mutant
    • Protein or peptide: Lysosomal cholesterol signaling protein

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Supramolecule #1: LYCHOS Y57A mutant

SupramoleculeName: LYCHOS Y57A mutant / type: complex / ID: 1 / Parent: 0 / Macromolecule list: all
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: 97.941727 KDa
Recombinant expressionOrganism: Spodoptera frugiperda (fall armyworm)
SequenceString: MNSNLPAENL TIAVNMTKTL PTAVTHGFNS TNDPPSMSIT RLFPALLECF GIVLCGAIAG RANVITSTQA KGLGNFVSRF ALPALLFKN MVVLNFSNVD WSFLYSILIA KASVFFIVCV LTLLVASPDS RFSKAGLFPI FATQSNDFAL GYPIVEALYQ T TYPEYLQY ...String:
MNSNLPAENL TIAVNMTKTL PTAVTHGFNS TNDPPSMSIT RLFPALLECF GIVLCGAIAG 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 FPTMDPKPLA YAIQNVSFDI SIVSLISLIW SLAI LLLSK KYKQLPHMLT TNLLIAQSIV CAGMMIWNFV KEKNFVGQIL VFVLLYSSLY STYLWTGLLA ISLFLLKKRE RVQIP VGII IISGWGIPAL LVGVLLITGK HNGDSIDSAF FYGKEQMITT AVTLFCSILI AGISLMCMNQ TAQAGSYEGF DQSQSH KVV EPGNTAFEES PAPVNEPELF TSSIPETSCC SCSMGNGELH CPSIEPIANT STSEPVIPSF EKNNHCVSRC NSQSCIL AQ EEEQYLQSGD QQLTRHVLLC LLLIIGLFAN LSSCLWWLFN QEPGRLYVEL QFFCAVFNFG QGFISFGIFG LDKHLIIL P FKRRLEFLWN NKDTAENRDS PVSEEIKMTC QQFIHYHRDL CIRNIVKERR CGAKTSAGTF CGCDLVSWLI EVGLASDRG EAVIYGDRLV QGGVIQHITN EYEFRDEYLF YRFLQKSPEQ SPPAINANTL QQERYKEIEH SSPPSHSPKT SRENLYFQ

UniProtKB: Lysosomal cholesterol signaling protein

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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

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: 49.9 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: 4.49 Å / Resolution method: FSC 0.143 CUT-OFF / Number images used: 39530
Initial angle assignmentType: MAXIMUM LIKELIHOOD
Final angle assignmentType: MAXIMUM LIKELIHOOD
FSC plot (resolution estimation)

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