Biological Assembly 1  

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Global Symmetry: Asymmetric - C1 
Global Stoichiometry: Monomer - A 

Biological assembly 1 assigned by authors.

Macromolecule Content

• Total Structure Weight: 42718.93 
• Atom Count: 2933 
• Residue Count: 364 
• Unique protein chains: 1

1GOL

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

• DOI: 10.2210/pdb1GOL/pdb

• Classification: TRANSFERASE
• Organism(s): Rattus norvegicus
• Expression System: Escherichia coli BL21(DE3)
• Mutation(s): 1 


• Deposited: 1996-01-23 Released: 1997-03-12 
• Deposition Author(s): Harkins, P.C., Zhang, F., Goldsmith, E.J.

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Experimental Data Snapshot

• Method: X-RAY DIFFRACTION
• Resolution: 2.8 Å

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

• PubMed: 8639522 
• DOI: 10.1021/bi952723e


• 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.

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Related Citations: 

• Crystallization and Preliminary X-Ray Studies of Extracellular Signal-Regulated Kinase-2/Map Kinase with an Incorporated His-Tag
  Zhang, F.,Robbins, D.J.,Cobb, M.H.,Goldsmith, E.J.
  (1993) J.Mol.Biol. 233: 550
• Atomic Structure of the Map Kinase Erk2 at 2.3 A Resolution
  Zhang, F.,Strand, A.,Robbins, D.,Cobb, M.H.,Goldsmith, E.J.
  (1994) Nature 367: 704
• Activity of the Map Kinase Erk2 is Controlled by a Flexible Surface Loop
  Zhang, J.,Zhang, F.,Ebert, D.,Cobb, M.H.,Goldsmith, E.J.
  (1995) Structure 3: 299




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Organizational Affiliation: 

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

Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details
EXTRACELLULAR REGULATED KINASE 2	A	364	Rattus norvegicus	Mutation(s): 1  Gene Names: Mapk1 (Erk2, Mapk, Prkm1) EC: 2.7.11.24
Find proteins for P63086 (Rattus norvegicus) Go to UniProtKB:  P63086

Small Molecules

Ligands 2 Unique
ID	Chains	Name / Formula / InChI Key	2D Diagram & Interactions
ATP	A	ADENOSINE-5'-TRIPHOSPHATE C10 H16 N5 O13 P3 ZKHQWZAMYRWXGA-KQYNXXCUSA-N
MG	A	MAGNESIUM ION Mg JLVVSXFLKOJNIY-UHFFFAOYSA-N

Experimental Data & Validation

Experimental Data

• Method: X-RAY DIFFRACTION
• Resolution: 2.8 Å
• Space Group: P 1 2₁ 1

Unit Cell:

Length (Å)	Angle (°)
a = 49.320	α = 90.00
b = 71.420	β = 109.75
c = 61.250	γ = 90.00

Software Package:

Software Name	Purpose
DENZO	data reduction
SCALEPACK	data scaling

Structure Validation

Entry History 

Deposition Data

• Deposited Date: 1996-01-23 
• Released Date: 1997-03-12 
• Deposition Author(s): Harkins, P.C., Zhang, F., Goldsmith, E.J.

Revision History 

• Version 1.0: 1997-03-12
  Type: Initial release
• Version 1.1: 2008-03-24
  Type: Version format compliance
• Version 1.2: 2011-07-13
  Type: Version format compliance