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- EMDB-61860: Cryo-EM structure of apo human XPR1, class 1, with one visible SP... -

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Basic information

Entry
Database: EMDB / ID: EMD-61860
TitleCryo-EM structure of apo human XPR1, class 1, with one visible SPX domain
Map data
Sample
  • Complex: Homodimer of XPR1
    • Protein or peptide: Solute carrier family 53 member 1
Keywordsphosphate channel / TRANSPORT PROTEIN
Function / homology
Function and homology information


phosphate transmembrane transporter activity / phosphate ion transport / intracellular phosphate ion homeostasis / phosphate ion transmembrane transport / cellular response to phosphate starvation / inositol hexakisphosphate binding / efflux transmembrane transporter activity / response to virus / virus receptor activity / plasma membrane
Similarity search - Function
EXS, C-terminal / EXS family / EXS domain profile. / SPX domain / SPX domain / SPX domain profile.
Similarity search - Domain/homology
Solute carrier family 53 member 1
Similarity search - Component
Biological speciesHomo sapiens (human)
Methodsingle particle reconstruction / cryo EM / Resolution: 3.85 Å
AuthorsWang X / Bai Z / Wallis C / Wang H / Han Y / Jin R / Lei M / Gu C / Jessen H / Shears S ...Wang X / Bai Z / Wallis C / Wang H / Han Y / Jin R / Lei M / Gu C / Jessen H / Shears S / Sun Y / Corry B / Zhang Y
Funding support China, 1 items
OrganizationGrant numberCountry
Ministry of Science and Technology (MoST, China)2022ZD0207400 China
CitationJournal: Mol.Cell / Year: 2025
Title: Cryo-EM structure of human XPR1 in apo state
Authors: Wang X / Bai Z / Wallis C / Wang H / Han Y / Jin R / Lei M / Gu C / Jessen H / Shears S / Sun Y / Corry B / Zhang Y
History
DepositionOct 11, 2024-
Header (metadata) releaseAug 27, 2025-
Map releaseAug 27, 2025-
UpdateAug 27, 2025-
Current statusAug 27, 2025Processing site: PDBc / Status: Released

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Structure visualization

Downloads & links

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Map

FileDownload / File: emd_61860.map.gz / Format: CCP4 / Size: 67 MB / Type: IMAGE STORED AS FLOATING POINT NUMBER (4 BYTES)
Voxel sizeX=Y=Z: 1.055 Å
Density
Contour LevelBy AUTHOR: 0.418
Minimum - Maximum-1.4616356 - 2.1447637
Average (Standard dev.)0.0038331733 (±0.051717892)
SymmetrySpace group: 1
Details

EMDB XML:

Map geometry
Axis orderXYZ
Origin000
Dimensions260260260
Spacing260260260
CellA=B=C: 274.3 Å
α=β=γ: 90.0 °

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Supplemental data

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Sample components

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Entire : Homodimer of XPR1

EntireName: Homodimer of XPR1
Components
  • Complex: Homodimer of XPR1
    • Protein or peptide: Solute carrier family 53 member 1

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Supramolecule #1: Homodimer of XPR1

SupramoleculeName: Homodimer of XPR1 / type: complex / ID: 1 / Parent: 0 / Macromolecule list: all
Source (natural)Organism: Homo sapiens (human)

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Macromolecule #1: Solute carrier family 53 member 1

MacromoleculeName: Solute carrier family 53 member 1 / type: protein_or_peptide / ID: 1 / Number of copies: 2 / Enantiomer: LEVO
Source (natural)Organism: Homo sapiens (human)
Molecular weightTheoretical: 73.422828 KDa
Recombinant expressionOrganism: Homo sapiens (human)
SequenceString: MKFAEHLSAH ITPEWRKQYI QYEAFKDMLY SAQDQAPSVE VTDEDTVKRY FAKFEEKFFQ TCEKELAKIN TFYSEKLAEA QRRFATLQN ELQSSLDAQK ESTGVTTLRQ RRKPVFHLSH EERVQHRNIK DLKLAFSEFY LSLILLQNYQ NLNFTGFRKI L KKHDKILE ...String:
MKFAEHLSAH ITPEWRKQYI QYEAFKDMLY SAQDQAPSVE VTDEDTVKRY FAKFEEKFFQ TCEKELAKIN TFYSEKLAEA QRRFATLQN ELQSSLDAQK ESTGVTTLRQ RRKPVFHLSH EERVQHRNIK DLKLAFSEFY LSLILLQNYQ NLNFTGFRKI L KKHDKILE TSRGADWRVA HVEVAPFYTC KKINQLISET EAVVTNELED GDRQKAMKRL RVPPLGAAQP APAWTTFRVG LF CGIFIVL NITLVLAAVF KLETDRSIWP LIRIYRGGFL LIEFLFLLGI NTYGWRQAGV NHVLIFELNP RSNLSHQHLF EIA GFLGIL WCLSLLACFF APISVIPTYV YPLALYGFMV FFLINPTKTF YYKSRFWLLK LLFRVFTAPF HKVGFADFWL ADQL NSLSV ILMDLEYMIC FYSLELKWDE SKGLLPNNSE ESGICHKYTY GVRAIVQCIP AWLRFIQCLR RYRDTKRAFP HLVNA GKYS TTFFMVTFAA LYSTHKERGH SDTMVFFYLW IVFYIISSCY TLIWDLKMDW GLFDKNAGEN TFLREEIVYP QKAYYY CAI IEDVILRFAW TIQISITSTT LLPHSGDIIA TVFAPLEVFR RFVWNFFRLE NEHLNNCGEF RA

UniProtKB: Solute carrier family 53 member 1

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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

MicroscopeTFS KRIOS
Image recordingFilm or detector model: GATAN K3 BIOCONTINUUM (6k x 4k) / Average electron dose: 49.41 e/Å2
Electron beamAcceleration voltage: 300 kV / Electron source: FIELD EMISSION GUN
Electron opticsIllumination mode: FLOOD BEAM / Imaging mode: BRIGHT FIELD / Nominal defocus max: 2.4 µm / Nominal defocus min: 1.4000000000000001 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: 3.85 Å / Resolution method: FSC 0.143 CUT-OFF / Software - Name: cryoSPARC / Number images used: 94997
Initial angle assignmentType: MAXIMUM LIKELIHOOD
Final angle assignmentType: MAXIMUM LIKELIHOOD

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