5T5T

AMPK bound to allosteric activator


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 3.46 Å
  • R-Value Free: 0.231 
  • R-Value Work: 0.211 

wwPDB Validation 3D Report Full Report


This is version 1.1 of the entry. See complete history

Literature

Selective Activation of AMPK beta 1-Containing Isoforms Improves Kidney Function in a Rat Model of Diabetic Nephropathy.

Salatto, C.T.Miller, R.A.Cameron, K.O.Cokorinos, E.Reyes, A.Ward, J.Calabrese, M.F.Kurumbail, R.G.Rajamohan, F.Kalgutkar, A.S.Tess, D.A.Shavnya, A.Genung, N.E.Edmonds, D.J.Jatkar, A.Maciejewski, B.S.Amaro, M.Gandhok, H.Monetti, M.Cialdea, K.Bollinger, E.Kreeger, J.M.Coskran, T.M.Opsahl, A.C.Boucher, G.G.Birnbaum, M.J.DaSilva-Jardine, P.Rolph, T.

(2017) J. Pharmacol. Exp. Ther. 361: 303-311

  • DOI: 10.1124/jpet.116.237925

  • PubMed Abstract: 
  • Diabetic nephropathy remains an area of high unmet medical need, with current therapies that slow down, but do not prevent, the progression of disease. A reduced phosphorylation state of adenosine monophosphate-activated protein kinase (AMPK) has bee ...

    Diabetic nephropathy remains an area of high unmet medical need, with current therapies that slow down, but do not prevent, the progression of disease. A reduced phosphorylation state of adenosine monophosphate-activated protein kinase (AMPK) has been correlated with diminished kidney function in both humans and animal models of renal disease. Here, we describe the identification of novel, potent, small molecule activators of AMPK that selectively activate AMPK heterotrimers containing the β1 subunit. After confirming that human and rodent kidney predominately express AMPK β1, we explore the effects of pharmacological activation of AMPK in the ZSF1 rat model of diabetic nephropathy. Chronic administration of these direct activators elevates the phosphorylation of AMPK in the kidney, without impacting blood glucose levels, and reduces the progression of proteinuria to a greater degree than the current standard of care, angiotensin-converting enzyme inhibitor ramipril. Further analyses of urine biomarkers and kidney tissue gene expression reveal AMPK activation leads to the modulation of multiple pathways implicated in kidney injury, including cellular hypertrophy, fibrosis, and oxidative stress. These results support the need for further investigation into the potential beneficial effects of AMPK activation in kidney disease.


    Organizational Affiliation

    CVMET Research Unit (C.T.S., R.A.M., E.C., A.R., J.W., A.J., B.S.M., M.A., H.G., M.M., K.C., E.B., M.J.B., P.D.-J., T.R.), Worldwide Medicinal Chemistry (K.O.C., D.J.E.), and Pharmacokinetics, Dynamics, & Metabolism (A.S.K., D.A.T.), Pfizer Worldwide Research and Development, Cambridge, Massachusetts; and Worldwide Medicinal Chemistry (M.C., R.K., F.R., A.S., N.E.G.), and Drug Safety Research and Development (J.M.K., T.M.C., A.C.O., G.G.B.), Pfizer Worldwide Research and Development, Groton, Connecticut christopher.t.salatto@pfizer.com.




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
5'-AMP-activated protein kinase catalytic subunit alpha-1
A
503Rattus norvegicusGene Names: Prkaa1 (Ampk1)
EC: 2.7.11.1, 2.7.11.31, 2.7.11.26, 2.7.11.27
Find proteins for P54645 (Rattus norvegicus)
Go to UniProtKB:  P54645
Entity ID: 2
MoleculeChainsSequence LengthOrganismDetails
5'-AMP-activated protein kinase subunit beta-1
B
204Rattus norvegicusGene Names: Prkab1
Find proteins for P80386 (Rattus norvegicus)
Go to UniProtKB:  P80386
Entity ID: 3
MoleculeChainsSequence LengthOrganismDetails
5'-AMP-activated protein kinase subunit gamma-1
C
330Rattus norvegicusGene Names: Prkag1
Find proteins for P80385 (Rattus norvegicus)
Go to UniProtKB:  P80385
Small Molecules
Ligands 6 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
SO4
Query on SO4

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Download CCD File 
A, C
SULFATE ION
O4 S
QAOWNCQODCNURD-UHFFFAOYSA-L
 Ligand Interaction
ADP
Query on ADP

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C
ADENOSINE-5'-DIPHOSPHATE
C10 H15 N5 O10 P2
XTWYTFMLZFPYCI-KQYNXXCUSA-N
 Ligand Interaction
CL
Query on CL

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Download CCD File 
A
CHLORIDE ION
Cl
VEXZGXHMUGYJMC-UHFFFAOYSA-M
 Ligand Interaction
STU
Query on STU

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A
STAUROSPORINE
C28 H26 N4 O3
HKSZLNNOFSGOKW-FYTWVXJKSA-N
 Ligand Interaction
AMP
Query on AMP

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Download CCD File 
C
ADENOSINE MONOPHOSPHATE
C10 H14 N5 O7 P
UDMBCSSLTHHNCD-KQYNXXCUSA-N
 Ligand Interaction
75O
Query on 75O

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B
6-chloro-5-[6-(dimethylamino)-2-methoxypyridin-3-yl]-1H-indole-3-carboxylic acid
C17 H16 Cl N3 O3
MJHBRTGGZYSCHJ-UHFFFAOYSA-N
 Ligand Interaction
Modified Residues  1 Unique
IDChainsTypeFormula2D DiagramParent
TPO
Query on TPO
A
L-PEPTIDE LINKINGC4 H10 N O6 PTHR
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 3.46 Å
  • R-Value Free: 0.231 
  • R-Value Work: 0.211 
  • Space Group: P 61 2 2
Unit Cell:
Length (Å)Angle (°)
a = 125.040α = 90.00
b = 125.040β = 90.00
c = 403.360γ = 120.00
Software Package:
Software NamePurpose
PHASERphasing
PDB_EXTRACTdata extraction
HKL-2000data reduction
PHASERphasing
HKL-2000data scaling
BUSTER-TNTrefinement

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2017-03-29
    Type: Initial release
  • Version 1.1: 2017-04-26
    Type: Database references