5V03

A positive allosteric modulator binding pocket in SK2 ion channels is shared by Riluzole and CyPPA


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.58 Å
  • R-Value Free: 0.220 
  • R-Value Work: 0.194 

wwPDB Validation 3D Report Full Report


This is version 1.1 of the entry. See complete history

Literature

An Intracellular Allosteric Modulator Binding Pocket in SK2 Ion Channels Is Shared by Multiple Chemotypes.

Cho, L.T.Alexandrou, A.J.Torella, R.Knafels, J.Hobbs, J.Taylor, T.Loucif, A.Konopacka, A.Bell, S.Stevens, E.B.Pandit, J.Horst, R.Withka, J.M.Pryde, D.C.Liu, S.Young, G.T.

(2018) Structure 26: 533-544.e3


Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
Small conductance calcium-activated potassium channel protein 2
B
102Homo sapiensMutation(s): 0 
Gene Names: KCNN2
Find proteins for Q9H2S1 (Homo sapiens)
Go to Gene View: KCNN2
Go to UniProtKB:  Q9H2S1
Entity ID: 2
MoleculeChainsSequence LengthOrganismDetails
Calmodulin
R
149Homo sapiensMutation(s): 0 
Gene Names: CALM1 (CALM, CAM, CAM1)
Find proteins for P0DP23 (Homo sapiens)
Go to Gene View: CALM1
Go to UniProtKB:  P0DP23
Small Molecules
Ligands 3 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
SO4
Query on SO4

Download SDF File 
Download CCD File 
B
SULFATE ION
O4 S
QAOWNCQODCNURD-UHFFFAOYSA-L
 Ligand Interaction
658
Query on 658

Download SDF File 
Download CCD File 
R
N-(4-chlorophenyl)-2-(3,5-dimethyl-1H-pyrazol-1-yl)pyrimidin-4-amine
C15 H14 Cl N5
MYCRDMLFNQGDBT-UHFFFAOYSA-N
 Ligand Interaction
CA
Query on CA

Download SDF File 
Download CCD File 
R
CALCIUM ION
Ca
BHPQYMZQTOCNFJ-UHFFFAOYSA-N
 Ligand Interaction
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.58 Å
  • R-Value Free: 0.220 
  • R-Value Work: 0.194 
  • Space Group: C 1 2 1
Unit Cell:
Length (Å)Angle (°)
a = 77.092α = 90.00
b = 66.882β = 93.95
c = 65.381γ = 90.00
Software Package:
Software NamePurpose
PHASERphasing
Aimlessdata scaling
BUSTERrefinement
XDSdata reduction

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

  • Deposited Date: 2017-02-28 
  • Released Date: 2018-03-07 
  • Deposition Author(s): Liu, S.

Revision History 

  • Version 1.0: 2018-03-07
    Type: Initial release
  • Version 1.1: 2018-04-25
    Type: Data collection, Database references