6LI9

Heteromeric amino acid transporter b0,+AT-rBAT complex bound with Arginine


Experimental Data Snapshot

  • Method: ELECTRON MICROSCOPY
  • Resolution: 2.30 Å
  • Aggregation State: PARTICLE 
  • Reconstruction Method: SINGLE PARTICLE 

wwPDB Validation   3D Report Full Report



Literature

Cryo-EM structure of the human heteromeric amino acid transporter b0,+AT-rBAT.

Yan, R.Li, Y.Shi, Y.Zhou, J.Lei, J.Huang, J.Zhou, Q.

(2020) Sci Adv 6: eaay6379-eaay6379

  • DOI: 10.1126/sciadv.aay6379
  • Primary Citation of Related Structures:  
    6LID, 6LI9

  • PubMed Abstract: 
  • Heteromeric amino acid transporters (HATs) catalyze the transmembrane movement of amino acids, comprising two subunits, a heavy chain and a light chain, linked by a disulfide bridge. The b 0,+ AT (SLC7A9) is a representative light chain of HAT ...

    Heteromeric amino acid transporters (HATs) catalyze the transmembrane movement of amino acids, comprising two subunits, a heavy chain and a light chain, linked by a disulfide bridge. The b 0,+ AT (SLC7A9) is a representative light chain of HATs, forming heterodimer with rBAT, a heavy chain which mediates the membrane trafficking of b 0,+ AT. The b 0,+ AT-rBAT complex is an obligatory exchanger, which mediates the influx of cystine and cationic amino acids and the efflux of neutral amino acids in kidney and small intestine. Here, we report the cryo-EM structure of the human b 0,+ AT-rBAT complex alone and in complex with arginine substrate at resolution of 2.7 and 2.3 Å, respectively. The overall structure of b 0,+ AT-rBAT exists as a dimer of heterodimer consistent with the previous study. A ligand molecule is bound to the substrate binding pocket, near which an occluded pocket is identified, to which we found that it is important for substrate transport.


    Organizational Affiliation

    Key Laboratory of Structural Biology of Zhejiang Province, Institute of Biology, Westlake Institute for Advanced Study, School of Life Sciences, Westlake University, 18 Shilongshan Road, Hangzhou 310024, Zhejiang Province, China.



Macromolecules
Find similar proteins by:  (by identity cutoff)  |  Structure
Entity ID: 1
MoleculeChainsSequence LengthOrganismDetailsImage
Neutral and basic amino acid transport protein rBAT AC699Homo sapiensMutation(s): 0 
Gene Names: SLC3A1RBAT
Membrane protein
Mpstruc
Group: 
TRANSMEMBRANE PROTEINS: ALPHA-HELICAL
Sub Group: 
Solute Carrier (SLC) Transporter Superfamily
Protein: 
SLC7A9 amino acid transporter b0,+AT-rBAT complex with bound arginine
Find proteins for Q07837 (Homo sapiens)
Explore Q07837 
Go to UniProtKB:  Q07837
NIH Common Fund Data Resources
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 1 BD507Homo sapiensMutation(s): 0 
Gene Names: SLC7A9BAT1
Membrane protein
Mpstruc
Group: 
TRANSMEMBRANE PROTEINS: ALPHA-HELICAL
Sub Group: 
Solute Carrier (SLC) Transporter Superfamily
Protein: 
SLC7A9 amino acid transporter b0,+AT-rBAT complex with bound arginine
Find proteins for P82251 (Homo sapiens)
Explore P82251 
Go to UniProtKB:  P82251
NIH Common Fund Data Resources
PHAROS:  P82251
Protein Feature View
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  • Reference Sequence
Oligosaccharides

Help

Entity ID: 3
MoleculeChainsChain Length2D Diagram Glycosylation3D Interactions
2-acetamido-2-deoxy-beta-D-glucopyranose-(1-4)-2-acetamido-2-deoxy-beta-D-glucopyranose
E, F, G, H, I, J, K, L, M, N
2 N-Glycosylation Oligosaccharides Interaction
Experimental Data & Validation

Experimental Data

  • Method: ELECTRON MICROSCOPY
  • Resolution: 2.30 Å
  • Aggregation State: PARTICLE 
  • Reconstruction Method: SINGLE PARTICLE 

Structure Validation

View Full Validation Report



Entry History & Funding Information

Deposition Data


Funding OrganizationLocationGrant Number
Ministry of Science and Technology (MoST, China)China2016YFA0500402
Ministry of Science and Technology (MoST, China)China2016YFA0501100
Ministry of Science and Technology (MoST, China)China2015CB910101
National Natural Science Foundation of China (NSFC)China31621092
National Natural Science Foundation of China (NSFC)China31630017
National Natural Science Foundation of China (NSFC)China81861138009
National Natural Science Foundation of China (NSFC)China31971123

Revision History 

  • Version 1.0: 2020-04-29
    Type: Initial release
  • Version 1.1: 2020-06-17
    Changes: Database references
  • Version 1.2: 2020-07-01
    Changes: Database references
  • Version 2.0: 2020-07-29
    Type: Remediation
    Reason: Carbohydrate remediation
    Changes: Atomic model, Data collection, Derived calculations, Structure summary