6YUP

Heterotetrameric structure of the rBAT-b(0,+)AT1 complex


Experimental Data Snapshot

  • Method: ELECTRON MICROSCOPY
  • Resolution: 2.90 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 for amino acid exchange by a human heteromeric amino acid transporter.

Wu, D.Grund, T.N.Welsch, S.Mills, D.J.Michel, M.Safarian, S.Michel, H.

(2020) Proc Natl Acad Sci U S A 117: 21281-21287

  • DOI: 10.1073/pnas.2008111117
  • Primary Citation of Related Structures:  
    6YUP, 6YUZ, 6YV1

  • PubMed Abstract: 
  • Heteromeric amino acid transporters (HATs) comprise a group of membrane proteins that belong to the solute carrier (SLC) superfamily. They are formed by two different protein components: a light chain subunit from an SLC7 family member and a heavy chain subunit from the SLC3 family ...

    Heteromeric amino acid transporters (HATs) comprise a group of membrane proteins that belong to the solute carrier (SLC) superfamily. They are formed by two different protein components: a light chain subunit from an SLC7 family member and a heavy chain subunit from the SLC3 family. The light chain constitutes the transport subunit whereas the heavy chain mediates trafficking to the plasma membrane and maturation of the functional complex. Mutation, malfunction, and dysregulation of HATs are associated with a wide range of pathologies or represent the direct cause of inherited and acquired disorders. Here we report the cryogenic electron microscopy structure of the neutral and basic amino acid transport complex (b [0,+] AT1-rBAT) which reveals a heterotetrameric protein assembly composed of two heavy and light chain subunits, respectively. The previously uncharacterized interaction between two HAT units is mediated via dimerization of the heavy chain subunits and does not include participation of the light chain subunits. The b (0,+) AT1 transporter adopts a LeuT fold and is captured in an inward-facing conformation. We identify an amino-acid-binding pocket that is formed by transmembrane helices 1, 6, and 10 and conserved among SLC7 transporters.


    Organizational Affiliation

    Department of Molecular Membrane Biology, Max Planck Institute of Biophysics, D-60438 Frankfurt am Main, Germany; schara.safarian@biophys.mpg.de hartmut.michel@biophys.mpg.de.



Macromolecules
Find similar proteins by:  (by identity cutoff)  |  Structure
Entity ID: 1
MoleculeChainsSequence LengthOrganismDetailsImage
Neutral and basic amino acid transport protein rBATA, B [auth C]685Homo sapiensMutation(s): 0 
Gene Names: SLC3A1RBAT
Membrane Entity: Yes 
UniProt & NIH Common Fund Data Resources
Find proteins for Q07837 (Homo sapiens)
Explore Q07837 
Go to UniProtKB:  Q07837
PHAROS:  Q07837
Protein Feature View
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  • Reference Sequence
Find similar proteins by:  (by identity cutoff)  |  Structure
Entity ID: 2
MoleculeChainsSequence LengthOrganismDetailsImage
b(0,+)-type amino acid transporter 1C [auth D], D [auth E]487Homo sapiensMutation(s): 0 
Gene Names: SLC7A9BAT1
Membrane Entity: Yes 
UniProt & NIH Common Fund Data Resources
Find proteins for P82251 (Homo sapiens)
Explore P82251 
Go to UniProtKB:  P82251
PHAROS:  P82251
Protein Feature View
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  • Reference Sequence
Experimental Data & Validation

Experimental Data

  • Method: ELECTRON MICROSCOPY
  • Resolution: 2.90 Å
  • Aggregation State: PARTICLE 
  • Reconstruction Method: SINGLE PARTICLE 

Structure Validation

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Entry History & Funding Information

Deposition Data


Funding OrganizationLocationGrant Number
German Federal Ministry for Education and ResearchGermany--
Max Planck SocietyGermany--

Revision History  (Full details and data files)

  • Version 1.0: 2021-01-20
    Type: Initial release