2R5T

Crystal Structure of Inactive Serum and Glucocorticoid- Regulated Kinase 1 in Complex with AMP-PNP


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.9 Å
  • R-Value Free: 0.215 
  • R-Value Work: 0.191 

wwPDB Validation 3D Report Full Report


This is version 1.2 of the entry. See complete history

Literature

Crystal structure of the kinase domain of serum and glucocorticoid-regulated kinase 1 in complex with AMP PNP.

Zhao, B.Lehr, R.Smallwood, A.M.Ho, T.F.Maley, K.Randall, T.Head, M.S.Koretke, K.K.Schnackenberg, C.G.

(2007) Protein Sci. 16: 2761-2769

  • DOI: 10.1110/ps.073161707

  • PubMed Abstract: 
  • Serum and glucocorticoid-regulated kinase 1 (SGK1) is a serine/threonine protein kinase of the AGC family which participates in the control of epithelial ion transport and is implicated in proliferation and apoptosis. We report here the 1.9 A crystal ...

    Serum and glucocorticoid-regulated kinase 1 (SGK1) is a serine/threonine protein kinase of the AGC family which participates in the control of epithelial ion transport and is implicated in proliferation and apoptosis. We report here the 1.9 A crystal structure of the catalytic domain of inactive human SGK1 in complex with AMP-PNP. SGK1 exists as a dimer formed by two intermolecular disulfide bonds between Cys258 in the activation loop and Cys193. Although most of the SGK1 structure closely resembles the common protein kinase fold, the structure around the active site is unique when compared to most protein kinases. The alphaC helix is not present in this inactive form of SGK1 crystal structure; instead, the segment corresponding to the C helix forms a beta-strand that is stabilized by the N-terminal segment of the activation loop through a short antiparallel beta-sheet. Since the differences from other kinases occur around the ATP binding site, this structure can provide valuable insight into the design of selective and highly potent ATP-competitive inhibitors of SGK1 kinase.


    Organizational Affiliation

    Department of Computational and Structural Chemistry, GlaxoSmithKline, King of Prussia, Pennsylvania 19406, USA. baoguang.zhao@gsk.com




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
Serine/threonine-protein kinase Sgk1
A
373Homo sapiensMutation(s): 4 
Gene Names: SGK1 (SGK)
EC: 2.7.11.1
Find proteins for O00141 (Homo sapiens)
Go to Gene View: SGK1
Go to UniProtKB:  O00141
Small Molecules
Ligands 3 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
SO4
Query on SO4

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

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Download CCD File 
A
PHOSPHOAMINOPHOSPHONIC ACID-ADENYLATE ESTER
C10 H17 N6 O12 P3
PVKSNHVPLWYQGJ-KQYNXXCUSA-N
 Ligand Interaction
MG
Query on MG

Download SDF File 
Download CCD File 
A
MAGNESIUM ION
Mg
JLVVSXFLKOJNIY-UHFFFAOYSA-N
 Ligand Interaction
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.9 Å
  • R-Value Free: 0.215 
  • R-Value Work: 0.191 
  • Space Group: P 65 2 2
Unit Cell:
Length (Å)Angle (°)
a = 97.873α = 90.00
b = 97.873β = 90.00
c = 147.848γ = 120.00
Software Package:
Software NamePurpose
DENZOdata reduction
PDB_EXTRACTdata extraction
HKL-2000data reduction
CNSphasing
SCALEPACKdata scaling
CNSrefinement
REFMACrefinement
HKL-2000data collection

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2008-09-09
    Type: Initial release
  • Version 1.1: 2011-07-13
    Type: Version format compliance
  • Version 1.2: 2017-10-25
    Type: Refinement description