6RZ4

Crystal structure of cysteinyl leukotriene receptor 1 in complex with pranlukast


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.70 Å
  • R-Value Free: 0.254 
  • R-Value Work: 0.228 
  • R-Value Observed: 0.229 

wwPDB Validation   3D Report Full Report


Ligand Structure Quality Assessment 


This is version 3.0 of the entry. See complete history


Literature

Structure-based mechanism of cysteinyl leukotriene receptor inhibition by antiasthmatic drugs.

Luginina, A.Gusach, A.Marin, E.Mishin, A.Brouillette, R.Popov, P.Shiriaeva, A.Besserer-Offroy, E.Longpre, J.M.Lyapina, E.Ishchenko, A.Patel, N.Polovinkin, V.Safronova, N.Bogorodskiy, A.Edelweiss, E.Hu, H.Weierstall, U.Liu, W.Batyuk, A.Gordeliy, V.Han, G.W.Sarret, P.Katritch, V.Borshchevskiy, V.Cherezov, V.

(2019) Sci Adv 5: eaax2518-eaax2518

  • DOI: 10.1126/sciadv.aax2518
  • Primary Citation of Related Structures:  
    6RZ4, 6RZ5

  • PubMed Abstract: 
  • The G protein-coupled cysteinyl leukotriene receptor CysLT 1 R mediates inflammatory processes and plays a major role in numerous disorders, including asthma, allergic rhinitis, cardiovascular disease, and cancer. Selective CysLT 1 R antagonists are widely prescribed as antiasthmatic drugs; however, these drugs demonstrate low effectiveness in some patients and exhibit a variety of side effects ...

    The G protein-coupled cysteinyl leukotriene receptor CysLT 1 R mediates inflammatory processes and plays a major role in numerous disorders, including asthma, allergic rhinitis, cardiovascular disease, and cancer. Selective CysLT 1 R antagonists are widely prescribed as antiasthmatic drugs; however, these drugs demonstrate low effectiveness in some patients and exhibit a variety of side effects. To gain deeper understanding into the functional mechanisms of CysLTRs, we determined the crystal structures of CysLT 1 R bound to two chemically distinct antagonists, zafirlukast and pranlukast. The structures reveal unique ligand-binding modes and signaling mechanisms, including lateral ligand access to the orthosteric pocket between transmembrane helices TM4 and TM5, an atypical pattern of microswitches, and a distinct four-residue-coordinated sodium site. These results provide important insights and structural templates for rational discovery of safer and more effective drugs.


    Organizational Affiliation

    Departments of Chemistry and Biological Sciences, Bridge Institute, University of Southern California, Los Angeles, CA 90089, USA.



Macromolecules
Find similar proteins by:  (by identity cutoff)  |  Structure
Entity ID: 1
MoleculeChainsSequence LengthOrganismDetailsImage
Cysteinyl leukotriene receptor 1,Soluble cytochrome b562,Cysteinyl leukotriene receptor 1A423Homo sapiensEscherichia coliMutation(s): 0 
Gene Names: CYSLTR1CYSLT1cybC
Membrane Entity: Yes 
UniProt & NIH Common Fund Data Resources
Find proteins for P0ABE7 (Escherichia coli)
Explore P0ABE7 
Go to UniProtKB:  P0ABE7
Find proteins for Q9Y271 (Homo sapiens)
Explore Q9Y271 
Go to UniProtKB:  Q9Y271
PHAROS:  Q9Y271
Protein Feature View
Expand
  • Reference Sequence
Small Molecules
Ligands 4 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
KNT (Subject of Investigation/LOI)
Query on KNT

Download Ideal Coordinates CCD File 
B [auth A]pranlukast
C27 H23 N5 O4
NBQKINXMPLXUET-UHFFFAOYSA-N
 Ligand Interaction
OLC (Subject of Investigation/LOI)
Query on OLC

Download Ideal Coordinates CCD File 
D [auth A] , E [auth A] , F [auth A] , G [auth A] , H [auth A] , I [auth A] , J [auth A] , K [auth A] , 
D [auth A], E [auth A], F [auth A], G [auth A], H [auth A], I [auth A], J [auth A], K [auth A], L [auth A]
(2R)-2,3-dihydroxypropyl (9Z)-octadec-9-enoate
C21 H40 O4
RZRNAYUHWVFMIP-GDCKJWNLSA-N
 Ligand Interaction
OLA (Subject of Investigation/LOI)
Query on OLA

Download Ideal Coordinates CCD File 
M [auth A]OLEIC ACID
C18 H34 O2
ZQPPMHVWECSIRJ-KTKRTIGZSA-N
 Ligand Interaction
NA
Query on NA

Download Ideal Coordinates CCD File 
C [auth A]SODIUM ION
Na
FKNQFGJONOIPTF-UHFFFAOYSA-N
 Ligand Interaction
Binding Affinity Annotations 
IDSourceBinding Affinity
KNT BindingDB:  6RZ4 Ki: min: 0.8, max: 0.8 (nM) from 2 assay(s)
Kd: min: 2.14e-4, max: 1 (nM) from 2 assay(s)
IC50: min: 0.04, max: 23 (nM) from 7 assay(s)
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.70 Å
  • R-Value Free: 0.254 
  • R-Value Work: 0.228 
  • R-Value Observed: 0.229 
  • Space Group: P 1 21 1
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 58.63α = 90
b = 45.35β = 91.47
c = 86.43γ = 90
Software Package:
Software NamePurpose
BUSTERrefinement
XDSdata reduction
XSCALEdata scaling
PHASERphasing

Structure Validation

View Full Validation Report



Ligand Structure Quality Assessment  



Entry History & Funding Information

Deposition Data


Funding OrganizationLocationGrant Number
Russian Science FoundationRussian Federation16-14-10273
National Institutes of Health/National Institute of General Medical SciencesUnited StatesR35 GM127086
Canadian Institutes of Health ResearchCanadaFDN-148413

Revision History  (Full details and data files)

  • Version 1.0: 2019-10-30
    Type: Initial release
  • Version 2.0: 2020-01-15
    Changes: Advisory, Atomic model, Data collection, Database references, Derived calculations, Source and taxonomy, Structure summary
  • Version 3.0: 2020-04-08
    Changes: Advisory, Atomic model, Database references, Derived calculations, Structure summary