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- EMDB-61377: Cryo-EM structure of human TauT in the apo state, determined in a... -

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Basic information

Entry
Database: EMDB / ID: EMD-61377
TitleCryo-EM structure of human TauT in the apo state, determined in an inward-facing open conformation
Map data
Sample
  • Complex: Taurine Transporter
    • Protein or peptide: Sodium- and chloride-dependent taurine transporter
  • Ligand: 2-acetamido-2-deoxy-beta-D-glucopyranose
  • Ligand: CHLORIDE ION
KeywordsHuman TauT / Taurine transpoter / inward- facing open conformation / transport protein
Function / homology
Function and homology information


taurine transmembrane transporter activity / alanine transmembrane transporter activity / gamma-aminobutyric acid transmembrane transporter activity / taurine:sodium symporter activity / import across plasma membrane / gamma-aminobutyric acid import / gamma-aminobutyric acid:sodium:chloride symporter activity / alanine transport / amino acid:sodium symporter activity / amino acid import across plasma membrane ...taurine transmembrane transporter activity / alanine transmembrane transporter activity / gamma-aminobutyric acid transmembrane transporter activity / taurine:sodium symporter activity / import across plasma membrane / gamma-aminobutyric acid import / gamma-aminobutyric acid:sodium:chloride symporter activity / alanine transport / amino acid:sodium symporter activity / amino acid import across plasma membrane / taurine transmembrane transport / Amino acid transport across the plasma membrane / amino acid transmembrane transporter activity / SLC-mediated transport of neurotransmitters / neurotransmitter transport / microvillus membrane / amino acid transport / transport across blood-brain barrier / sodium ion transmembrane transport / cell projection / positive regulation of cell differentiation / modulation of chemical synaptic transmission / GABA-ergic synapse / basolateral plasma membrane / postsynaptic membrane / apical plasma membrane / neuronal cell body / dendrite / membrane / plasma membrane
Similarity search - Function
Sodium:neurotransmitter symporter, taurine / Sodium:neurotransmitter symporter family signature 2. / Sodium:neurotransmitter symporter family signature 1. / Sodium:neurotransmitter symporter / Sodium:neurotransmitter symporter superfamily / Sodium:neurotransmitter symporter family / Sodium:neurotransmitter symporter family profile.
Similarity search - Domain/homology
Sodium- and chloride-dependent taurine transporter
Similarity search - Component
Biological speciesHomo sapiens (human)
Methodsingle particle reconstruction / cryo EM / Resolution: 3.41 Å
AuthorsQu Q / Chao Y / Zhou Z
Funding support China, 1 items
OrganizationGrant numberCountry
National Natural Science Foundation of China (NSFC)32171194 China
CitationJournal: Cell Res / Year: 2025
Title: Transport and inhibition mechanism for human TauT-mediated taurine uptake.
Authors: Yulin Chao / Zixuan Zhou / Hao Xia / Chuanhui Yang / Tingting Li / Yi-Quan Tang / Yilai Shu / Qian Ba / Jiaxu Hong / Dianfan Li / Qianhui Qu /
History
DepositionAug 30, 2024-
Header (metadata) releaseMar 19, 2025-
Map releaseMar 19, 2025-
UpdateMay 7, 2025-
Current statusMay 7, 2025Processing site: PDBc / Status: Released

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Structure visualization

Supplemental images

emd_61377.png

Downloads & links

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Map

FileDownload / File: emd_61377.map.gz / Format: CCP4 / Size: 40.6 MB / Type: IMAGE STORED AS FLOATING POINT NUMBER (4 BYTES)
Projections & slices

Image control

Size
Brightness
Contrast
Others
AxesZ (Sec.)Y (Row.)X (Col.)
0.93 Å/pix.
x 220 pix.
= 205.04 Å		0.93 Å/pix.
x 220 pix.
= 205.04 Å		0.93 Å/pix.
x 220 pix.
= 205.04 Å

Surface

Projections

Slices (1/3)

Slices (1/2)

Slices (2/3)

Images are generated by Spider.

Voxel sizeX=Y=Z: 0.932 Å
Density

Histogram

Histogram (log scale)
Contour LevelBy AUTHOR: 0.25
Minimum - Maximum-2.5815694 - 3.2595673
Average (Standard dev.)-0.0013802972 (±0.07853384)
SymmetrySpace group: 1
Details

EMDB XML:

Map geometry
Axis orderXYZ
Origin000
Dimensions220220220
Spacing220220220
CellA=B=C: 205.04 Å
α=β=γ: 90.0 °

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Supplemental data

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Half map: #2

Fileemd_61377_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_61377_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 : Taurine Transporter

EntireName: Taurine Transporter
Components
  • Complex: Taurine Transporter
    • Protein or peptide: Sodium- and chloride-dependent taurine transporter
  • Ligand: 2-acetamido-2-deoxy-beta-D-glucopyranose
  • Ligand: CHLORIDE ION

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Supramolecule #1: Taurine Transporter

SupramoleculeName: Taurine Transporter / type: complex / ID: 1 / Parent: 0 / Macromolecule list: #1
Source (natural)Organism: Homo sapiens (human)

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Macromolecule #1: Sodium- and chloride-dependent taurine transporter

MacromoleculeName: Sodium- and chloride-dependent taurine transporter / type: protein_or_peptide / ID: 1 / Number of copies: 1 / Enantiomer: LEVO
Source (natural)Organism: Homo sapiens (human)
Molecular weightTheoretical: 68.495992 KDa
Recombinant expressionOrganism: Homo sapiens (human)
SequenceString: MATKEKLQCL KDFHKDILKP SPGKSPGTRP EDEAEGKPPQ REKWSSKIDF VLSVAGGFVG LGNVWRFPYL CYKNGGGAFL IPYFIFLFG SGLPVFFLEI IIGQYTSEGG ITCWEKICPL FSGIGYASVV IVSLLNVYYI VILAWATYYL FQSFQKELPW A HCNHSWNT ...String:
MATKEKLQCL KDFHKDILKP SPGKSPGTRP EDEAEGKPPQ REKWSSKIDF VLSVAGGFVG LGNVWRFPYL CYKNGGGAFL IPYFIFLFG SGLPVFFLEI IIGQYTSEGG ITCWEKICPL FSGIGYASVV IVSLLNVYYI VILAWATYYL FQSFQKELPW A HCNHSWNT PHCMEDTMRK NKSVWITISS TNFTSPVIEF WERNVLSLSP GIDHPGSLKW DLALCLLLVW LVCFFCIWKG VR STGKVVY FTATFPFAML LVLLVRGLTL PGAGAGIKFY LYPDITRLED PQVWIDAGTQ IFFSYAICLG AMTSLGSYNK YKY NSYRDC MLLGCLNSGT SFVSGFAIFS ILGFMAQEQG VDIADVAESG PGLAFIAYPK AVTMMPLPTF WSILFFIMLL LLGL DSQFV EVEGQITSLV DLYPSFLRKG YRREIFIAFV CSISYLLGLT MVTEGGMYVF QLFDYYAASG VCLLWVAFFE CFVIA WIYG GDNLYDGIED MIGYRPGPWM KYSWAVITPV LCVGCFIFSL VKYVPLTYNK TYVYPNWAIG LGWSLALSSM LCVPLV IVI RLCQTEGPFL VRVKYLLTPS RLEEELRRRT EPGLRSRLEV LFQ

UniProtKB: Sodium- and chloride-dependent taurine transporter

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Macromolecule #2: 2-acetamido-2-deoxy-beta-D-glucopyranose

MacromoleculeName: 2-acetamido-2-deoxy-beta-D-glucopyranose / type: ligand / ID: 2 / Number of copies: 3 / Formula: NAG
Molecular weightTheoretical: 221.208 Da
Chemical component information

ChemComp-NAG:
2-acetamido-2-deoxy-beta-D-glucopyranose

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Macromolecule #3: CHLORIDE ION

MacromoleculeName: CHLORIDE ION / type: ligand / ID: 3 / Number of copies: 1 / Formula: CL
Molecular weightTheoretical: 35.453 Da

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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: 7.5
GridModel: Quantifoil R1.2/1.3 / Material: GOLD / Mesh: 200 / Pretreatment - Type: GLOW DISCHARGE / Pretreatment - Time: 50 sec. / Pretreatment - Atmosphere: AIR / Pretreatment - Pressure: 260.0 kPa
VitrificationCryogen name: ETHANE / Chamber humidity: 100 % / Chamber temperature: 277.15 K

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Electron microscopy

MicroscopeTFS KRIOS
Image recordingFilm or detector model: FEI FALCON IV (4k x 4k) / Average electron dose: 50.0 e/Å2
Electron beamAcceleration voltage: 300 kV / Electron source: FIELD EMISSION GUN
Electron opticsIllumination mode: FLOOD BEAM / Imaging mode: BRIGHT FIELD / Cs: 2.7 mm / Nominal defocus max: 2.0 µm / Nominal defocus min: 1.5 µm
Experimental equipment
Model: Titan Krios / Image courtesy: FEI Company

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Image processing

Startup modelType of model: NONE
Final reconstructionResolution.type: BY AUTHOR / Resolution: 3.41 Å / Resolution method: FSC 0.143 CUT-OFF / Number images used: 240402
Initial angle assignmentType: ANGULAR RECONSTITUTION
Final angle assignmentType: ANGULAR RECONSTITUTION
FSC plot (resolution estimation)

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Atomic model buiding 1

RefinementSpace: REAL / Protocol: RIGID BODY FIT
Output model

PDB-9jcv:
Cryo-EM structure of human TauT in the apo state, determined in an inward-facing open conformation

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