8WJQ

Cryo-EM structure of URAT1(R477S)-Urate complex


Experimental Data Snapshot

  • Method: ELECTRON MICROSCOPY
  • Resolution: 3.80 Å
  • Aggregation State: PARTICLE 
  • Reconstruction Method: SINGLE PARTICLE 

wwPDB Validation   3D Report Full Report


This is version 1.2 of the entry. See complete history


Literature

Structural basis for the transport and substrate selection of human urate transporter 1.

He, J.Liu, G.Kong, F.Tan, Q.Wang, Z.Yang, M.He, Y.Jia, X.Yan, C.Wang, C.Qian, H.

(2024) Cell Rep 43: 114628-114628

  • DOI: https://doi.org/10.1016/j.celrep.2024.114628
  • Primary Citation of Related Structures:  
    8WJG, 8WJH, 8WJQ

  • PubMed Abstract: 

    High serum urate levels are the major risk factor for gout. URAT1, the primary transporter for urate absorption in the kidneys, is well known as an anti-hyperuricemia drug target. However, the clinical application of URAT1-targeted drugs is limited because of their low specificity and severe side effects. The lack of structural information impedes elucidation of the transport mechanism and the development of new drugs. Here, we present the cryoelectron microscopy (cryo-EM) structures of human URAT1(R477S), its complex with urate, and its closely related homolog OAT4. URAT1(R477S) and OAT4 exhibit major facilitator superfamily (MFS) folds with outward- and inward-open conformations, respectively. Structural comparison reveals a 30° rotation between the N-terminal and C-terminal domains, supporting an alternating access mechanism. A conserved arginine (OAT4-Arg473/URAT1-Arg477) is found to be essential for chloride-mediated inhibition. The URAT1(R477S)-urate complex reveals the specificity of urate recognition. Taken together, our study promotes our understanding of the transport mechanism and substrate selection of URAT1.


  • Organizational Affiliation

    Department of Cardiology, First Affiliated Hospital of USTC, MOE Key Laboratory for Membraneless Organelles and Cellular Dynamics, Hefei National Research Center for Interdisciplinary Sciences at the Microscale, Division of Life Sciences and Medicine, University of Science and Technology of China, Hefei 230027, China.


Macromolecules
Find similar proteins by:  (by identity cutoff)  |  3D Structure
Entity ID: 1
MoleculeChains Sequence LengthOrganismDetailsImage
Solute carrier family 22 member 12538Homo sapiensMutation(s): 0 
Gene Names: SLC22A12OATL4URAT1UNQ6453/PRO34004
Membrane Entity: Yes 
UniProt & NIH Common Fund Data Resources
Find proteins for Q96S37 (Homo sapiens)
Explore Q96S37 
Go to UniProtKB:  Q96S37
PHAROS:  Q96S37
GTEx:  ENSG00000197891 
Entity Groups  
Sequence Clusters30% Identity50% Identity70% Identity90% Identity95% Identity100% Identity
UniProt GroupQ96S37
Sequence Annotations
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  • Reference Sequence
Small Molecules
Experimental Data & Validation

Experimental Data

  • Method: ELECTRON MICROSCOPY
  • Resolution: 3.80 Å
  • Aggregation State: PARTICLE 
  • Reconstruction Method: SINGLE PARTICLE 

Structure Validation

View Full Validation Report



Entry History & Funding Information

Deposition Data


Funding OrganizationLocationGrant Number
Other privateKY9100000034

Revision History  (Full details and data files)

  • Version 1.0: 2024-08-28
    Type: Initial release
  • Version 1.1: 2024-09-04
    Changes: Data collection, Database references, Structure summary
  • Version 1.2: 2024-11-06
    Changes: Data collection, Structure summary