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- PDB-9lvw: Cryo-EM structure of G6PT1 in complex with phosphate ion -

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Basic information

Entry
Database: PDB / ID: 9lvw
TitleCryo-EM structure of G6PT1 in complex with phosphate ion
ComponentsGlucose-6-phosphate exchanger SLC37A4
KeywordsTRANSPORT PROTEIN / protein structure / STRUCTURAL 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
PHOSPHATE ION / Glucose-6-phosphate exchanger SLC37A4
Similarity search - Component
Biological speciesHomo sapiens (human)
MethodELECTRON MICROSCOPY / single particle reconstruction / cryo EM / Resolution: 3.41 Å
AuthorsZhao, Y. / Chen, Q.
Funding support China, 1items
OrganizationGrant numberCountry
National Natural Science Foundation of China (NSFC) China
CitationJournal: To Be Published
Title: Cryo-EM structure of G6PT1 in complex with phosphate ion
Authors: Zhao, Y. / Chen, Q.
History
DepositionFeb 12, 2025Deposition site: PDBJ / Processing site: PDBJ
Revision 1.0Dec 31, 2025Provider: repository / Type: Initial release
Revision 1.0Dec 31, 2025Data content type: EM metadata / Data content type: EM metadata / Provider: repository / Type: Initial release
Revision 1.0Dec 31, 2025Data content type: Half map / Part number: 1 / Data content type: Half map / Provider: repository / Type: Initial release
Revision 1.0Dec 31, 2025Data content type: Half map / Part number: 2 / Data content type: Half map / Provider: repository / Type: Initial release
Revision 1.0Dec 31, 2025Data content type: Image / Data content type: Image / Provider: repository / Type: Initial release
Revision 1.0Dec 31, 2025Data content type: Primary map / Data content type: Primary map / Provider: repository / Type: Initial release

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Structure visualization

Structure viewerMolecule:
MolmilJmol/JSmol

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Assembly

Deposited unit
A: Glucose-6-phosphate exchanger SLC37A4
hetero molecules


Theoretical massNumber of molelcules
Total (without water)48,4974
Polymers46,3921
Non-polymers2,1053
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 Glucose-6-phosphate exchanger SLC37A4 / Glucose-5-phosphate transporter / Glucose-6-phosphate translocase / Solute carrier family 37 member ...Glucose-5-phosphate transporter / Glucose-6-phosphate translocase / Solute carrier family 37 member 4 / Transformation-related gene 19 protein / TRG-19


Mass: 46391.809 Da / Num. of mol.: 1
Source method: isolated from a genetically manipulated source
Source: (gene. exp.) Homo sapiens (human) / Gene: SLC37A4, G6PT, G6PT1, PRO0685, TRG19 / Production host: Homo sapiens (human) / References: UniProt: O43826
#2: Chemical ChemComp-LMN / Lauryl Maltose Neopentyl Glycol / 2,2-didecylpropane-1,3-bis-b-D-maltopyranoside


Mass: 1005.188 Da / Num. of mol.: 2 / Source method: obtained synthetically / Formula: C47H88O22 / Feature type: SUBJECT OF INVESTIGATION / Comment: detergent*YM
#3: Chemical ChemComp-PO4 / PHOSPHATE ION


Mass: 94.971 Da / Num. of mol.: 1 / Source method: obtained synthetically / Formula: PO4 / Feature type: SUBJECT OF INVESTIGATION
Has ligand of interestY
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: Cryo-EM structure of G6PT1 in complex with phosphate ion
Type: COMPLEX / Entity ID: #1 / Source: RECOMBINANT
Source (natural)Organism: Homo sapiens (human)
Source (recombinant)Organism: Homo sapiens (human)
Buffer solutionpH: 8
SpecimenEmbedding applied: NO / Shadowing applied: NO / Staining applied: NO / Vitrification applied: YES
VitrificationCryogen name: ETHANE

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Electron microscopy imaging

Experimental equipment
Model: Talos Arctica / Image courtesy: FEI Company
MicroscopyModel: FEI TALOS ARCTICA
Electron gunElectron source: FIELD EMISSION GUN / Accelerating voltage: 300 kV / Illumination mode: OTHER
Electron lensMode: BRIGHT FIELD / Nominal defocus max: 2000 nm / Nominal defocus min: 1000 nm
Image recordingElectron dose: 60 e/Å2 / Film or detector model: GATAN K3 (6k x 4k)

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Processing

CTF correctionType: PHASE FLIPPING ONLY
3D reconstructionResolution: 3.41 Å / Resolution method: FSC 0.143 CUT-OFF / Num. of particles: 61117 / Symmetry type: POINT

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