7XR4

Structure of human excitatory amino acid transporter 2 (EAAT2) in complex with glutamate

Experimental Data Snapshot

  • Method: ELECTRON MICROSCOPY
  • Resolution: 3.40 Å
  • Aggregation State: PARTICLE 
  • Reconstruction Method: SINGLE PARTICLE 

wwPDB Validation   3D Report Full Report


This is version 1.0 of the entry. See complete history. 


Literature

Structural basis of ligand binding modes of human EAAT2.

Zhang, Z., Chen, H., Geng, Z., Yu, Z., Li, H., Dong, Y., Zhang, H., Huang, Z., Jiang, J., Zhao, Y.

(2022) Nat Commun 13: 3329-3329

  • DOI: 10.1038/s41467-022-31031-x
  • Primary Citation of Related Structures:  
    7XR4, 7XR6

  • PubMed Abstract: 

    • In the central nervous system (CNS), excitatory amino acid transporters (EAATs) mediate the uptake of excitatory neurotransmitter glutamate and maintain its low concentrations in the synaptic cleft for avoiding neuronal cytotoxicity. Dysfunction of EAATs can lead to many psychiatric diseases ...

    In the central nervous system (CNS), excitatory amino acid transporters (EAATs) mediate the uptake of excitatory neurotransmitter glutamate and maintain its low concentrations in the synaptic cleft for avoiding neuronal cytotoxicity. Dysfunction of EAATs can lead to many psychiatric diseases. Here we report cryo-EM structures of human EAAT2 in an inward-facing conformation, in the presence of substrate glutamate or selective inhibitor WAY-213613. The glutamate is coordinated by extensive hydrogen bonds and further stabilized by HP2. The inhibitor WAY-213613 occupies a similar binding pocket to that of the substrate glutamate. Upon association with the WAY-213613, the HP2 undergoes a substantial conformational change, and in turn stabilizes the inhibitor binding by forming hydrophobic interactions. Electrophysiological experiments elucidate that the unique S441 plays pivotal roles in the binding of hEAAT2 with glutamate or WAY-213613, and the I464-L467-V468 cluster acts as a key structural determinant for the selective inhibition of this transporter by WAY-213613.

    Organizational Affiliation: 

    College of Life Sciences, University of Chinese Academy of Sciences, Beijing, 100049, China. zhaoy@ibp.ac.cn.



Macromolecules
Find similar proteins by: 
(by identity cutoff)  |  3D Structure
Entity ID: 1
MoleculeChainsSequence LengthOrganismDetailsImage
Excitatory amino acid transporter 2A, B, C574Homo sapiensMutation(s): 0 
Gene Names: SLC1A2, EAAT2, GLT1
Membrane Entity: Yes 
UniProt & NIH Common Fund Data Resources
Find proteins for P43004 (Homo sapiens)
Explore P43004 
Go to UniProtKB:  P43004
PHAROS:  P43004
Entity Groups  
Sequence Clusters30% Identity50% Identity70% Identity90% Identity95% Identity100% Identity
UniProt GroupP43004
Protein Feature View
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  • Reference Sequence
Small Molecules
Ligands 3 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
PC1
Query on PC1
Download Ideal Coordinates CCD File 
AA [auth C],
BA [auth C],
CA [auth C],
DA [auth C],
EA [auth C],
AA [auth C],
BA [auth C],
CA [auth C],
DA [auth C],
EA [auth C],
F [auth A],
FA [auth C],
G [auth A],
GA [auth C],
H [auth A],
I [auth A],
J [auth A],
K [auth A],
L [auth A],
M [auth A],
P [auth B],
Q [auth B],
R [auth B],
S [auth B],
T [auth B],
U [auth B],
V [auth B],
W [auth B],
Z [auth C]
1,2-DIACYL-SN-GLYCERO-3-PHOSPHOCHOLINE
C44 H88 N O8 P
NRJAVPSFFCBXDT-HUESYALOSA-N		 Ligand Interaction
Y01
Query on Y01
Download Ideal Coordinates CCD File 
E [auth A],
O [auth B],
Y [auth C]		CHOLESTEROL HEMISUCCINATE
C31 H50 O4
WLNARFZDISHUGS-MIXBDBMTSA-N		 Ligand Interaction
GLU (Subject of Investigation/LOI)
Query on GLU
Download Ideal Coordinates CCD File 
D [auth A],
N [auth B],
X [auth C]		GLUTAMIC ACID
C5 H9 N O4
WHUUTDBJXJRKMK-VKHMYHEASA-N		 Ligand Interaction
Experimental Data & Validation

Experimental Data

  • Method: ELECTRON MICROSCOPY
  • Resolution: 3.40 Å
  • Aggregation State: PARTICLE 
  • Reconstruction Method: SINGLE PARTICLE 

Structure Validation

View Full Validation Report



View more in-depth experimental data

Entry History & Funding Information

Deposition Data

  • Deposited Date: 2022-05-09 
  • Released Date: 2022-06-22 
    • Deposition Author(s): Zhao, Y., Zhang, Z.
Funding OrganizationLocationGrant Number
National Natural Science Foundation of China (NSFC)China--

Revision History  (Full details and data files)

  • Version 1.0: 2022-06-22
    Type: Initial release