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- EMDB-65551: Human SLC37A4 antiparallel dimer -

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ID or keywords:

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Basic information

Entry
Database: EMDB / ID: EMD-65551
TitleHuman SLC37A4 antiparallel dimer
Map data
Sample
  • Complex: Human SLC37A4
    • Protein or peptide: Glucose-6-phosphate exchanger SLC37A4
KeywordsSLC37A4 / G6PT / G6P / GSD-Ib / TRANSPORT PROTEIN
Function / homology
Function and homology information


glucose-6-phosphate transmembrane transporter activity / Glycogen storage disease type Ib (SLC37A4) / glucose 6-phosphate:phosphate antiporter activity / glucose-6-phosphate transport / Gluconeogenesis / phosphate ion transmembrane transport / gluconeogenesis / glucose metabolic process / glucose homeostasis / endoplasmic reticulum membrane ...glucose-6-phosphate transmembrane transporter activity / Glycogen storage disease type Ib (SLC37A4) / glucose 6-phosphate:phosphate antiporter activity / glucose-6-phosphate transport / Gluconeogenesis / phosphate ion transmembrane transport / gluconeogenesis / glucose metabolic process / glucose homeostasis / endoplasmic reticulum membrane / endoplasmic reticulum / membrane
Similarity search - Function
Glycerate/sugar phosphate transporter, conserved site / : / glpT family of transporters signature. / Sugar phosphate transporter / Major facilitator superfamily / Major Facilitator Superfamily / Major facilitator superfamily domain / Major facilitator superfamily (MFS) profile. / MFS transporter superfamily
Similarity search - Domain/homology
Glucose-6-phosphate exchanger SLC37A4
Similarity search - Component
Biological speciesHomo sapiens (human)
Methodsingle particle reconstruction / cryo EM / Resolution: 3.2 Å
AuthorsZhou D / Zhang Z
Funding support China, 2 items
OrganizationGrant numberCountry
National Natural Science Foundation of China (NSFC)32471252 China
Ministry of Science and Technology (MoST, China)2021YFA1302300 China
CitationJournal: Nat.Struct.Mol.Biol. / Year: 2025
Title: Structural basis of G6P/Pi transport and inhibition in SLC37A4
Authors: Zhou D / Zhang Y / Chen N / Huang S / Song C / Zhang Z
History
DepositionJul 26, 2025-
Header (metadata) releaseNov 19, 2025-
Map releaseNov 19, 2025-
UpdateNov 19, 2025-
Current statusNov 19, 2025Processing site: PDBc / Status: Released

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Structure visualization

Supplemental images

emd_65551.png

Downloads & links

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Map

FileDownload / File: emd_65551.map.gz / Format: CCP4 / Size: 178 MB / Type: IMAGE STORED AS FLOATING POINT NUMBER (4 BYTES)
Projections & slices

Image control

Size
Brightness
Contrast
Others
AxesZ (Sec.)Y (Row.)X (Col.)
0.83 Å/pix.
x 360 pix.
= 298.8 Å		0.83 Å/pix.
x 360 pix.
= 298.8 Å		0.83 Å/pix.
x 360 pix.
= 298.8 Å

Surface

Projections

Slices (1/3)

Slices (1/2)

Slices (2/3)

Images are generated by Spider.

Voxel sizeX=Y=Z: 0.83 Å
Density

Histogram

Histogram (log scale)
Contour LevelBy AUTHOR: 0.15
Minimum - Maximum-1.1726627 - 1.5000358
Average (Standard dev.)-0.00010659099 (±0.028806726)
SymmetrySpace group: 1
Details

EMDB XML:

Map geometry
Axis orderXYZ
Origin000
Dimensions360360360
Spacing360360360
CellA=B=C: 298.8 Å
α=β=γ: 90.0 °

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Supplemental data

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Half map: #1

Fileemd_65551_half_map_1.map
Projections & Slices
AxesZYX

Projections

Slices (1/2)
Density Histograms

Histogram

Histogram (log scale)

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Half map: #2

Fileemd_65551_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 : Human SLC37A4

EntireName: Human SLC37A4
Components
  • Complex: Human SLC37A4
    • Protein or peptide: Glucose-6-phosphate exchanger SLC37A4

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Supramolecule #1: Human SLC37A4

SupramoleculeName: Human SLC37A4 / type: complex / ID: 1 / Parent: 0 / Macromolecule list: all
Source (natural)Organism: Homo sapiens (human)
Molecular weightTheoretical: 90 KDa

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Macromolecule #1: Glucose-6-phosphate exchanger SLC37A4

MacromoleculeName: Glucose-6-phosphate exchanger SLC37A4 / type: protein_or_peptide / ID: 1 / Number of copies: 2 / Enantiomer: LEVO
Source (natural)Organism: Homo sapiens (human)
Molecular weightTheoretical: 47.565117 KDa
Recombinant expressionOrganism: Homo sapiens (human)
SequenceString: MAAQGYGYYR TVIFSAMFGG YSLYYFNRKT FSFVMPSLVE EIPLDKDDLG FITSSQSAAY AISKFVSGVL SDQMSARWLF SSGLLLVGL VNIFFAWSST VPVFAALWFL NGLAQGLGWP PCGKVLRKWF EPSQFGTWWA ILSTSMNLAG GLGPILATIL A QSYSWRST ...String:
MAAQGYGYYR TVIFSAMFGG YSLYYFNRKT FSFVMPSLVE EIPLDKDDLG FITSSQSAAY AISKFVSGVL SDQMSARWLF SSGLLLVGL VNIFFAWSST VPVFAALWFL NGLAQGLGWP PCGKVLRKWF EPSQFGTWWA ILSTSMNLAG GLGPILATIL A QSYSWRST LALSGALCVV VSFLCLLLIH NEPADVGLRN LDPMPSEGKK GSLKEESTLQ ELLLSPYLWV LSTGYLVVFG VK TCCTDWG QFFLIQEKGQ SALVGSSYMS ALEVGGLVGS IAAGYLSDRA MAKAGLSNYG NPRHGLLLFM MAGMTVSMYL FRV TVTSDS PKLWILVLGA VFGFSSYGPI ALFGVIANES APPNLCGTSH AIVGLMANVG GFLAGLPFST IAKHYSWSTA FWVA EVICA ASTAAFFLLR NIRTKMGRVS KKAELEGGSL EVLFQ

UniProtKB: Glucose-6-phosphate exchanger SLC37A4

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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

Concentration6 mg/mL
BufferpH: 7.5
VitrificationCryogen name: ETHANE

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Electron microscopy

MicroscopeFEI POLARA 300
Image recordingFilm or detector model: GATAN K3 (6k x 4k) / Average electron dose: 60.0 e/Å2
Electron beamAcceleration voltage: 300 kV / Electron source: FIELD EMISSION GUN
Electron opticsIllumination mode: FLOOD BEAM / Imaging mode: BRIGHT FIELD / Nominal defocus max: 2.0 µm / Nominal defocus min: 1.0 µm
Experimental equipment
Model: Tecnai Polara / Image courtesy: FEI Company

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Image processing

CTF correctionType: NONE
Startup modelType of model: NONE
Final reconstructionResolution.type: BY AUTHOR / Resolution: 3.2 Å / Resolution method: FSC 0.143 CUT-OFF / Software - Name: cryoSPARC / Number images used: 79816
Initial angle assignmentType: ANGULAR RECONSTITUTION
Final angle assignmentType: ANGULAR RECONSTITUTION

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