4XPB

X-ray structure of Drosophila dopamine transporter with subsiteB mutations (D121G/S426M) bound to cocaine


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 3.05 Å
  • R-Value Free: 0.269 
  • R-Value Work: 0.244 
  • R-Value Observed: 0.246 

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Ligand Structure Quality Assessment 


This is version 2.0 of the entry. See complete history


Literature

Neurotransmitter and psychostimulant recognition by the dopamine transporter.

Wang, K.H.Penmatsa, A.Gouaux, E.

(2015) Nature 521: 322-327

  • DOI: https://doi.org/10.1038/nature14431
  • Primary Citation of Related Structures:  
    4XP1, 4XP4, 4XP5, 4XP6, 4XP9, 4XPA, 4XPB, 4XPF, 4XPG, 4XPH, 4XPT

  • PubMed Abstract: 

    Na(+)/Cl(-)-coupled biogenic amine transporters are the primary targets of therapeutic and abused drugs, ranging from antidepressants to the psychostimulants cocaine and amphetamines, and to their cognate substrates. Here we determine X-ray crystal structures of the Drosophila melanogaster dopamine transporter (dDAT) bound to its substrate dopamine, a substrate analogue 3,4-dichlorophenethylamine, the psychostimulants d-amphetamine and methamphetamine, or to cocaine and cocaine analogues. All ligands bind to the central binding site, located approximately halfway across the membrane bilayer, in close proximity to bound sodium and chloride ions. The central binding site recognizes three chemically distinct classes of ligands via conformational changes that accommodate varying sizes and shapes, thus illustrating molecular principles that distinguish substrates from inhibitors in biogenic amine transporters.


  • Organizational Affiliation

    Vollum Institute, Oregon Health &Science University, 3181 SW Sam Jackson Park Road, Portland, Oregon 97239, USA.


Macromolecules
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Entity ID: 1
MoleculeChains Sequence LengthOrganismDetailsImage
Transporter543Drosophila melanogasterMutation(s): 4 
Gene Names: DATCG8380Dmel_CG8380
Membrane Entity: Yes 
UniProt
Find proteins for Q7K4Y6 (Drosophila melanogaster)
Explore Q7K4Y6 
Go to UniProtKB:  Q7K4Y6
Entity Groups  
Sequence Clusters30% Identity50% Identity70% Identity90% Identity95% Identity100% Identity
UniProt GroupQ7K4Y6
Sequence Annotations
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  • Reference Sequence
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Entity ID: 2
MoleculeChains Sequence LengthOrganismDetailsImage
Antibody fragment heavy chain-protein, 9D5-heavy chainB [auth L]214Mus musculusMutation(s): 0 
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  • Reference Sequence
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Entity ID: 3
MoleculeChains Sequence LengthOrganismDetailsImage
Antibody fragment light chain-protein, 9D5-light chainC [auth H]240Mus musculusMutation(s): 0 
Entity Groups  
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Sequence Annotations
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  • Reference Sequence
Oligosaccharides

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Entity ID: 4
MoleculeChains Length2D Diagram Glycosylation3D Interactions
alpha-D-glucopyranose-(1-4)-beta-D-glucopyranoseD [auth B]2N/A
Glycosylation Resources
GlyTouCan:  G66120GK
GlyCosmos:  G66120GK
Small Molecules
Ligands 4 Unique
IDChains Name / Formula / InChI Key2D Diagram3D Interactions
CLR
Query on CLR

Download Ideal Coordinates CCD File 
G [auth A],
H [auth A]
CHOLESTEROL
C27 H46 O
HVYWMOMLDIMFJA-DPAQBDIFSA-N
COC
Query on COC

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F [auth A]COCAINE
C17 H21 N O4
ZPUCINDJVBIVPJ-LJISPDSOSA-N
CL
Query on CL

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J [auth A]CHLORIDE ION
Cl
VEXZGXHMUGYJMC-UHFFFAOYSA-M
NA
Query on NA

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E [auth A],
I [auth A]
SODIUM ION
Na
FKNQFGJONOIPTF-UHFFFAOYSA-N
Biologically Interesting Molecules (External Reference) 1 Unique
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 3.05 Å
  • R-Value Free: 0.269 
  • R-Value Work: 0.244 
  • R-Value Observed: 0.246 
  • Space Group: P 21 21 21
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 97.498α = 90
b = 139.963β = 90
c = 166.959γ = 90
Software Package:
Software NamePurpose
PHENIXrefinement
HKL-2000data reduction
Cootmodel building
HKL-2000data scaling
PHASERphasing

Structure Validation

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Ligand Structure Quality Assessment 


Entry History 

Deposition Data

Revision History  (Full details and data files)

  • Version 1.0: 2015-05-13
    Type: Initial release
  • Version 1.1: 2015-05-27
    Changes: Database references
  • Version 1.2: 2015-06-03
    Changes: Database references
  • Version 1.3: 2017-11-22
    Changes: Database references, Derived calculations, Refinement description, Source and taxonomy
  • Version 2.0: 2020-07-29
    Type: Remediation
    Reason: Carbohydrate remediation
    Changes: Atomic model, Data collection, Derived calculations, Non-polymer description, Structure summary