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- PDB-9jbj: Cryo-EM structure of the human LYCHOS Y57A/R61A mutant in the exp... -

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Basic information

Entry
Database: PDB / ID: 9jbj
TitleCryo-EM structure of the human LYCHOS Y57A/R61A mutant in the expanded state
ComponentsLysosomal cholesterol signaling protein
KeywordsMEMBRANE PROTEIN / permease-like domain / GPCR-like domain / cholesterol / mTORC1
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)
MethodELECTRON MICROSCOPY / single particle reconstruction / cryo EM / Resolution: 3.73 Å
AuthorsYu, S. / Liang, L.
Funding support China, 1items
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, 2024Deposition site: PDBJ / Processing site: PDBJ
Revision 1.0Jul 16, 2025Provider: repository / Type: Initial release
Revision 1.0Jul 16, 2025Data content type: EM metadata / Data content type: EM metadata / Provider: repository / Type: Initial release
Revision 1.0Jul 16, 2025Data content type: FSC / Data content type: FSC / Provider: repository / Type: Initial release
Revision 1.0Jul 16, 2025Data content type: Half map / Part number: 1 / Data content type: Half map / Provider: repository / Type: Initial release
Revision 1.0Jul 16, 2025Data content type: Half map / Part number: 2 / Data content type: Half map / Provider: repository / Type: Initial release
Revision 1.0Jul 16, 2025Data content type: Image / Data content type: Image / Provider: repository / Type: Initial release
Revision 1.0Jul 16, 2025Data content type: Primary map / Data content type: Primary map / Provider: repository / Type: Initial release

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Structure visualization

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Assembly

Deposited unit
A: Lysosomal cholesterol signaling protein
B: Lysosomal cholesterol signaling protein


Theoretical massNumber of molelcules
Total (without water)195,7112
Polymers195,7112
Non-polymers00
Water00
1


  • Idetical with deposited unit
  • defined by author&software
  • Evidence: electron microscopy, not applicable
TypeNameSymmetry operationNumber
identity operation1_555x,y,z1

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Components

#1: Protein Lysosomal cholesterol signaling protein / LYCHOS / G-protein coupled receptor PGR22


Mass: 97855.602 Da / Num. of mol.: 2 / Mutation: Y57A,R61A
Source method: isolated from a genetically manipulated source
Source: (gene. exp.) Homo sapiens (human) / Gene: GPR155, PGR22 / Production host: Spodoptera frugiperda (fall armyworm) / References: UniProt: Q7Z3F1
Has protein modificationN

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Experimental details

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Experiment

ExperimentMethod: ELECTRON MICROSCOPY
EM experimentAggregation state: PARTICLE / 3D reconstruction method: single particle reconstruction

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Sample preparation

ComponentName: LYCHOS Y57A/R61A mutant / Type: COMPLEX / Entity ID: all / Source: RECOMBINANT
Source (natural)Organism: Homo sapiens (human)
Source (recombinant)Organism: Spodoptera frugiperda (fall armyworm)
Buffer solutionpH: 7.4
SpecimenEmbedding applied: NO / Shadowing applied: NO / Staining applied: NO / Vitrification applied: YES
VitrificationCryogen name: ETHANE

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Electron microscopy imaging

MicroscopyModel: TFS GLACIOS
Electron gunElectron source: FIELD EMISSION GUN / Accelerating voltage: 200 kV / Illumination mode: FLOOD BEAM
Electron lensMode: BRIGHT FIELD / Nominal defocus max: 1800 nm / Nominal defocus min: 1200 nm
Image recordingElectron dose: 40 e/Å2 / Film or detector model: FEI FALCON IV (4k x 4k)

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Processing

EM softwareName: PHENIX / Category: model refinement
CTF correctionType: PHASE FLIPPING AND AMPLITUDE CORRECTION
3D reconstructionResolution: 3.73 Å / Resolution method: FSC 0.143 CUT-OFF / Num. of particles: 41691 / Symmetry type: POINT

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