8WTW

Cryo-EM structure of noradrenaline transporter in complex with a x-MrlA analogue


Experimental Data Snapshot

  • Method: ELECTRON MICROSCOPY
  • Resolution: 2.80 Å
  • Aggregation State: PARTICLE 
  • Reconstruction Method: SINGLE PARTICLE 

wwPDB Validation   3D Report Full Report


This is version 2.0 of the entry. See complete history


Literature

Transport and inhibition mechanisms of the human noradrenaline transporter.

Hu, T.Yu, Z.Zhao, J.Meng, Y.Salomon, K.Bai, Q.Wei, Y.Zhang, J.Xu, S.Dai, Q.Yu, R.Yang, B.Loland, C.J.Zhao, Y.

(2024) Nature 632: 930-937

  • DOI: https://doi.org/10.1038/s41586-024-07638-z
  • Primary Citation of Related Structures:  
    8WTU, 8WTV, 8WTW, 8WTX, 8WTY

  • PubMed Abstract: 

    The noradrenaline transporter (also known as norepinephrine transporter) (NET) has a critical role in terminating noradrenergic transmission by utilizing sodium and chloride gradients to drive the reuptake of noradrenaline (also known as norepinephrine) into presynaptic neurons 1-3 . It is a pharmacological target for various antidepressants and analgesic drugs 4,5 . Despite decades of research, its structure and the molecular mechanisms underpinning noradrenaline transport, coupling to ion gradients and non-competitive inhibition remain unknown. Here we present high-resolution complex structures of NET in two fundamental conformations: in the apo state, and bound to the substrate noradrenaline, an analogue of the χ-conotoxin MrlA (χ-MrlA EM ), bupropion or ziprasidone. The noradrenaline-bound structure clearly demonstrates the binding modes of noradrenaline. The coordination of Na + and Cl - undergoes notable alterations during conformational changes. Analysis of the structure of NET bound to χ-MrlA EM provides insight into how conotoxin binds allosterically and inhibits NET. Additionally, bupropion and ziprasidone stabilize NET in its inward-facing state, but they have distinct binding pockets. These structures define the mechanisms governing neurotransmitter transport and non-competitive inhibition in NET, providing a blueprint for future drug design.


  • Organizational Affiliation

    National Laboratory of Biomacromolecules, CAS Center for Excellence in Biomacromolecules, Institute of Biophysics, Chinese Academy of Sciences, Beijing, China.


Macromolecules
Find similar proteins by:  (by identity cutoff)  |  3D Structure
Entity ID: 1
MoleculeChains Sequence LengthOrganismDetailsImage
Sodium-dependent noradrenaline transporter566Homo sapiensMutation(s): 0 
Gene Names: SLC6A2
UniProt & NIH Common Fund Data Resources
Find proteins for P23975 (Homo sapiens)
Explore P23975 
Go to UniProtKB:  P23975
PHAROS:  P23975
GTEx:  ENSG00000103546 
Entity Groups  
Sequence Clusters30% Identity50% Identity70% Identity90% Identity95% Identity100% Identity
UniProt GroupP23975
Sequence Annotations
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  • Reference Sequence

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Entity ID: 2
MoleculeChains Sequence LengthOrganismDetailsImage
MrlA15Conus marmoreusMutation(s): 0 
Entity Groups  
Sequence Clusters30% Identity50% Identity70% Identity90% Identity95% Identity100% Identity
Sequence Annotations
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  • Reference Sequence
Experimental Data & Validation

Experimental Data

  • Method: ELECTRON MICROSCOPY
  • Resolution: 2.80 Å
  • Aggregation State: PARTICLE 
  • Reconstruction Method: SINGLE PARTICLE 

Structure Validation

View Full Validation Report



Entry History & Funding Information

Deposition Data


Funding OrganizationLocationGrant Number
Chinese Academy of SciencesChinaXDB37030304

Revision History  (Full details and data files)

  • Version 1.0: 2024-08-07
    Type: Initial release
  • Version 1.1: 2024-08-14
    Changes: Data collection, Database references
  • Version 1.2: 2024-09-04
    Changes: Data collection, Database references
  • Version 2.0: 2024-10-02
    Changes: Advisory, Atomic model, Data collection, Database references, Derived calculations, Polymer sequence, Source and taxonomy, Structure summary