5YC8

Crystal structure of rationally thermostabilized M2 muscarinic acetylcholine receptor bound with NMS (Hg-derivative)


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.50 Å
  • R-Value Free: 0.270 
  • R-Value Work: 0.237 
  • R-Value Observed: 0.239 

wwPDB Validation   3D Report Full Report


This is version 1.2 of the entry. See complete history


Literature

Structural insights into the subtype-selective antagonist binding to the M2muscarinic receptor

Suno, R.Lee, S.Maeda, S.Yasuda, S.Yamashita, K.Hirata, K.Horita, S.Tawaramoto, M.S.Tsujimoto, H.Murata, T.Kinoshita, M.Yamamoto, M.Kobilka, B.K.Vaidehi, N.Iwata, S.Kobayashi, T.

(2018) Nat Chem Biol 14: 1150-1158

  • DOI: 10.1038/s41589-018-0152-y
  • Primary Citation of Related Structures:  
    5ZKC, 5ZKB, 5ZK8, 5ZK3, 5YC8

  • PubMed Abstract: 
  • Human muscarinic receptor M 2 is one of the five subtypes of muscarinic receptors belonging to the family of G-protein-coupled receptors. Muscarinic receptors are targets for multiple neurodegenerative diseases. The challenge has been des ...

    Human muscarinic receptor M 2 is one of the five subtypes of muscarinic receptors belonging to the family of G-protein-coupled receptors. Muscarinic receptors are targets for multiple neurodegenerative diseases. The challenge has been designing subtype-selective ligands against one of the five muscarinic receptors. We report high-resolution structures of a thermostabilized mutant M 2 receptor bound to a subtype-selective antagonist AF-DX 384 and a nonselective antagonist NMS. The thermostabilizing mutation S110R in M 2 was predicted using a theoretical strategy previously developed in our group. Comparison of the crystal structures and pharmacological properties of the M 2 receptor shows that the Arg in the S110R mutant mimics the stabilizing role of the sodium cation, which is known to allosterically stabilize inactive state(s) of class A GPCRs. Molecular dynamics simulations reveal that tightening of the ligand-residue contacts in M 2 receptors compared to M 3 receptors leads to subtype selectivity of AF-DX 384.


    Organizational Affiliation

    Japan Science and Technology Agency (JST) and Japan Agency for Medical Research and Development (AMED), Core Research for Evolutional Science and Technology (CREST), Konoe-cho, Yoshida, Sakyo-ku, Kyoto, Japan. kobayashi.takuya.4r@kyoto-u.ac.jp.



Macromolecules
Find similar proteins by:  (by identity cutoff)  |  Structure
Entity ID: 1
MoleculeChainsSequence LengthOrganismDetailsImage
Muscarinic acetylcholine receptor M2,Redesigned apo-cytochrome b562,Muscarinic acetylcholine receptor M2A421Homo sapiensMutation(s): 1 
Gene Names: CHRM2
Find proteins for P0ABE7 (Escherichia coli)
Explore P0ABE7 
Go to UniProtKB:  P0ABE7
Find proteins for P08172 (Homo sapiens)
Explore P08172 
Go to UniProtKB:  P08172
NIH Common Fund Data Resources
PHAROS  P08172
Protein Feature View
Expand
  • Reference Sequence
Small Molecules
Ligands 2 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
3C0
Query on 3C0

Download Ideal Coordinates CCD File 
A
N-methyl scopolamine
C18 H24 N O4
LZCOQTDXKCNBEE-IKIFYQGPSA-N
 Ligand Interaction
HG
Query on HG

Download Ideal Coordinates CCD File 
A
MERCURY (II) ION
Hg
BQPIGGFYSBELGY-UHFFFAOYSA-N
 Ligand Interaction
External Ligand Annotations 
IDBinding Affinity (Sequence Identity %)
3C0Kd:  6.400000095367432   nM  Binding MOAD
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.50 Å
  • R-Value Free: 0.270 
  • R-Value Work: 0.237 
  • R-Value Observed: 0.239 
  • Space Group: P 1 21 1
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 46.52α = 90
b = 59β = 98.89
c = 89.22γ = 90
Software Package:
Software NamePurpose
XSCALEdata scaling
PHENIXrefinement
PDB_EXTRACTdata extraction
XDSdata reduction
PHENIXphasing

Structure Validation

View Full Validation Report



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2018-11-21
    Type: Initial release
  • Version 1.1: 2018-11-28
    Changes: Data collection, Database references
  • Version 1.2: 2020-02-26
    Changes: Data collection