4N0S

Complex of ERK2 with caffeic acid


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.7992 Å
  • R-Value Free: 0.189 
  • R-Value Work: 0.154 

wwPDB Validation 3D Report Full Report


This is version 1.1 of the entry. See complete history

Literature

Caffeic Acid Directly Targets ERK1/2 to Attenuate Solar UV-Induced Skin Carcinogenesis.

Yang, G.Fu, Y.Malakhova, M.Kurinov, I.Zhu, F.Yao, K.Li, H.Chen, H.Li, W.Lim, D.Y.Sheng, Y.Bode, A.M.Dong, Z.Dong, Z.

(2014) Cancer Prev Res (Phila) 7: 1056-1066

  • DOI: 10.1158/1940-6207.CAPR-14-0141

  • PubMed Abstract: 
  • Caffeic acid (3,4-dihydroxycinnamic acid) is a well-known phenolic phytochemical present in coffee and reportedly has anticancer activities. However, the underlying molecular mechanisms and targeted proteins involved in the suppression of carcinogene ...

    Caffeic acid (3,4-dihydroxycinnamic acid) is a well-known phenolic phytochemical present in coffee and reportedly has anticancer activities. However, the underlying molecular mechanisms and targeted proteins involved in the suppression of carcinogenesis by caffeic acid are not fully understood. In this study, we report that caffeic acid significantly inhibits colony formation of human skin cancer cells and EGF-induced neoplastic transformation of HaCaT cells dose-dependently. Caffeic acid topically applied to dorsal mouse skin significantly suppressed tumor incidence and volume in a solar UV (SUV)-induced skin carcinogenesis mouse model. A substantial reduction of phosphorylation in mitogen-activated protein kinase signaling was observed in mice treated with caffeic acid either before or after SUV exposure. Caffeic acid directly interacted with ERK1/2 and inhibited ERK1/2 activities in vitro. Importantly, we resolved the cocrystal structure of ERK2 complexed with caffeic acid. Caffeic acid interacted directly with ERK2 at amino acid residues Q105, D106, and M108. Moreover, A431 cells expressing knockdown of ERK2 lost sensitivity to caffeic acid in a skin cancer xenograft mouse model. Taken together, our results suggest that caffeic acid exerts chemopreventive activity against SUV-induced skin carcinogenesis by targeting ERK1 and 2.


    Related Citations: 
    • Norathyriol suppresses skin cancers induced by solar ultraviolet radiation by targeting ERK kinases.
      Li, J.,Malakhova, M.,Mottamal, M.,Reddy, K.,Kurinov, I.,Carper, A.,Langfald, A.,Oi, N.,Kim, M.O.,Zhu, F.,Sosa, C.P.,Zhou, K.,Bode, A.M.,Dong, Z.
      (2012) Cancer Res. 72: 260


    Organizational Affiliation

    The Hormel Institute, University of Minnesota, Austin, Minnesota. Physiology and Pathophysiology, Basic Medical College, Zhengzhou University, ZhengZhou, China. The First Affiliated Hospital of Zhengzhou University, ZhengZhou, China.




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
Mitogen-activated protein kinase 1
A
360Homo sapiensMutation(s): 0 
Gene Names: MAPK1 (ERK2, PRKM1, PRKM2)
EC: 2.7.11.24
Find proteins for P28482 (Homo sapiens)
Go to Gene View: MAPK1
Go to UniProtKB:  P28482
Small Molecules
Ligands 4 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
DMS
Query on DMS

Download SDF File 
Download CCD File 
A
DIMETHYL SULFOXIDE
C2 H6 O S
IAZDPXIOMUYVGZ-UHFFFAOYSA-N
 Ligand Interaction
PEG
Query on PEG

Download SDF File 
Download CCD File 
A
DI(HYDROXYETHYL)ETHER
C4 H10 O3
MTHSVFCYNBDYFN-UHFFFAOYSA-N
 Ligand Interaction
DHC
Query on DHC

Download SDF File 
Download CCD File 
A
CAFFEIC ACID
3,4-DIHYDROXYCINNAMIC ACID
C9 H8 O4
QAIPRVGONGVQAS-DUXPYHPUSA-N
 Ligand Interaction
Modified Residues  1 Unique
IDChainsTypeFormula2D DiagramParent
CME
Query on CME
A
L-PEPTIDE LINKINGC5 H11 N O3 S2CYS
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.7992 Å
  • R-Value Free: 0.189 
  • R-Value Work: 0.154 
  • Space Group: P 1 21 1
Unit Cell:
Length (Å)Angle (°)
a = 48.748α = 90.00
b = 69.932β = 109.16
c = 59.989γ = 90.00
Software Package:
Software NamePurpose
HKL-2000data scaling
PHENIXrefinement
PHENIXphasing
ADSCdata collection
HKL-2000data reduction
PHENIXmodel building

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2014-08-27
    Type: Initial release
  • Version 1.1: 2014-10-22
    Type: Database references