1GOL

COORDINATES OF RAT MAP KINASE ERK2 WITH AN ARGININE MUTATION AT POSITION 52


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.80 Å

wwPDB Validation   3D Report Full Report


This is version 1.4 of the entry. See complete history


Literature

Mutation of position 52 in ERK2 creates a nonproductive binding mode for adenosine 5'-triphosphate.

Robinson, M.J.Harkins, P.C.Zhang, J.Baer, R.Haycock, J.W.Cobb, M.H.Goldsmith, E.J.

(1996) Biochemistry 35: 5641-5646

  • DOI: https://doi.org/10.1021/bi952723e
  • Primary Citation of Related Structures:  
    1GOL

  • PubMed Abstract: 

    Among the protein kinases, an absolutely conserved lysine in subdomain II is required for high catalytic activity. This lysine is known to interact with the substrate ATP, but otherwise its role is not well understood. We have used biochemical and structural methods to investigate the function of this lysine (K52) in phosphoryl transfer reactions catalyzed by the MAP kinase ERK2. The kinetic properties of activated wild-type ERK2 and K52 mutants were examined using the oncoprotein TAL2, myelin basic protein, and a designed synthetic peptide as substrates. The catalytic activities of K52R and K52A ERK2 were lower than that of wild-type ERK2, primarily as a consequence of reductions in kcat. Further, there was little difference in Km for ATP, but the Km,app for peptide substrate was higher for the K52 mutants. The three-dimensional structure of unphosphorylated K52R ERK2 in the absence and presence of bound ATP was determined and compared with the structure of unphosphorylated wild-type ERK2. ATP adopted a well-defined but distinct binding mode in K52R ERK2 compared to the binding mode in the wild-type enzyme. The structural and kinetic data show that mutation of K52 created a nonproductive binding mode for ATP and suggest that K52 is essential for orienting ATP for catalysis.


  • Organizational Affiliation

    Department of Pharmacology, University of Texas Southwestern Medical Center, Dallas 75235, USA.


Macromolecules
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Entity ID: 1
MoleculeChains Sequence LengthOrganismDetailsImage
EXTRACELLULAR REGULATED KINASE 2364Rattus norvegicusMutation(s): 1 
Gene Names: ERK2
EC: 2.7.1 (PDB Primary Data), 2.7.11.24 (UniProt)
UniProt
Find proteins for P63086 (Rattus norvegicus)
Explore P63086 
Go to UniProtKB:  P63086
Entity Groups  
Sequence Clusters30% Identity50% Identity70% Identity90% Identity95% Identity100% Identity
UniProt GroupP63086
Sequence Annotations
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  • Reference Sequence
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.80 Å
  • Space Group: P 1 21 1
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 49.32α = 90
b = 71.42β = 109.75
c = 61.25γ = 90
Software Package:
Software NamePurpose
DENZOdata reduction
SCALEPACKdata scaling

Structure Validation

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Entry History 

Deposition Data

Revision History  (Full details and data files)

  • Version 1.0: 1997-03-12
    Type: Initial release
  • Version 1.1: 2008-03-24
    Changes: Version format compliance
  • Version 1.2: 2011-07-13
    Changes: Version format compliance
  • Version 1.3: 2021-11-03
    Changes: Database references, Derived calculations, Other
  • Version 1.4: 2024-02-07
    Changes: Data collection