4OHP

Human GKRP bound to AMG-3227 and S6P


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.40 Å
  • R-Value Free: 0.281 
  • R-Value Work: 0.218 
  • R-Value Observed: 0.222 

wwPDB Validation 3D Report Full Report


This is version 1.1 of the entry. See complete history


Literature

Small molecule disruptors of the glucokinase-glucokinase regulatory protein interaction: 3. Structure-activity relationships within the aryl carbinol region of the N-arylsulfonamido-N'-arylpiperazine series.

Nishimura, N.Norman, M.H.Liu, L.Yang, K.C.Ashton, K.S.Bartberger, M.D.Chmait, S.Chen, J.Cupples, R.Fotsch, C.Helmering, J.Jordan, S.R.Kunz, R.K.Pennington, L.D.Poon, S.F.Siegmund, A.Sivits, G.Lloyd, D.J.Hale, C.St Jean, D.J.

(2014) J Med Chem 57: 3094-3116

  • DOI: 10.1021/jm5000497
  • Primary Citation of Related Structures:  
    4OHK, 4OHM, 4OHO, 4OHP

  • PubMed Abstract: 
  • We have recently reported a novel approach to increase cytosolic glucokinase (GK) levels through the binding of a small molecule to its endogenous inhibitor, glucokinase regulatory protein (GKRP). These initial investigations culminated in the identification of 2-(4-((2S)-4-((6-amino-3-pyridinyl)sulfonyl)-2-(1-propyn-1-yl)-1-piperazinyl)phenyl)-1,1,1,3,3,3-hexafluoro-2-propanol (1, AMG-3969), a compound that effectively enhanced GK translocation and reduced blood glucose levels in diabetic animals ...

    We have recently reported a novel approach to increase cytosolic glucokinase (GK) levels through the binding of a small molecule to its endogenous inhibitor, glucokinase regulatory protein (GKRP). These initial investigations culminated in the identification of 2-(4-((2S)-4-((6-amino-3-pyridinyl)sulfonyl)-2-(1-propyn-1-yl)-1-piperazinyl)phenyl)-1,1,1,3,3,3-hexafluoro-2-propanol (1, AMG-3969), a compound that effectively enhanced GK translocation and reduced blood glucose levels in diabetic animals. Herein we report the results of our expanded SAR investigations that focused on modifications to the aryl carbinol group of this series. Guided by the X-ray cocrystal structure of compound 1 bound to hGKRP, we identified several potent GK-GKRP disruptors bearing a diverse set of functionalities in the aryl carbinol region. Among them, sulfoximine and pyridinyl derivatives 24 and 29 possessed excellent potency as well as favorable PK properties. When dosed orally in db/db mice, both compounds significantly lowered fed blood glucose levels (up to 58%).


    Organizational Affiliation

    Department of Therapeutic Discovery-Medicinal Chemistry, ‡Department of Therapeutic Discovery-Molecular Structure and Characterization, §Department of Metabolic Disorders, and ∥Department of Pharmacokinetics and Drug Metabolism, Amgen Inc. , One Amgen Center Drive, Thousand Oaks, California 91320-1799, United States.



Macromolecules
Find similar proteins by:  (by identity cutoff)  |  Structure
Entity ID: 1
MoleculeChainsSequence LengthOrganismDetailsImage
Glucokinase regulatory proteinA, B638Homo sapiensMutation(s): 0 
Gene Names: GCKR
Find proteins for Q14397 (Homo sapiens)
Explore Q14397 
Go to UniProtKB:  Q14397
NIH Common Fund Data Resources
PHAROS  Q14397
Protein Feature View
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  • Reference Sequence
Small Molecules
Ligands 5 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
2TJ
Query on 2TJ

Download CCD File 
A, B
4-[(2S)-4-[(6-aminopyridin-3-yl)sulfonyl]-2-(prop-1-yn-1-yl)piperazin-1-yl]-N-methylbenzenesulfonamide
C19 H23 N5 O4 S2
AZCZVIWSFGSHOZ-INIZCTEOSA-N
 Ligand Interaction
S6P
Query on S6P

Download CCD File 
A, B
D-SORBITOL-6-PHOSPHATE
C6 H15 O9 P
GACTWZZMVMUKNG-SLPGGIOYSA-N
 Ligand Interaction
IOD
Query on IOD

Download CCD File 
A, B
IODIDE ION
I
XMBWDFGMSWQBCA-UHFFFAOYSA-M
 Ligand Interaction
SO4
Query on SO4

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

Download CCD File 
B
GLYCEROL
C3 H8 O3
PEDCQBHIVMGVHV-UHFFFAOYSA-N
 Ligand Interaction
External Ligand Annotations 
IDBinding Affinity (Sequence Identity %)
2TJIC50:  35   nM  BindingDB
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.40 Å
  • R-Value Free: 0.281 
  • R-Value Work: 0.218 
  • R-Value Observed: 0.222 
  • Space Group: P 65
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 148.971α = 90
b = 148.971β = 90
c = 132.186γ = 120
Software Package:
Software NamePurpose
HKL-2000data collection
AMoREphasing
REFMACrefinement
HKL-2000data reduction
HKL-2000data scaling

Structure Validation

View Full Validation Report



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2014-07-30
    Type: Initial release
  • Version 1.1: 2014-10-08
    Changes: Database references