6JPV

Structural analysis of AIMP2-DX2 and HSP70 interaction


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.15001 Å
  • R-Value Free: 0.235 
  • R-Value Work: 0.174 

wwPDB Validation 3D Report Full Report


This is version 1.3 of the entry. See complete history

Literature

Targeting the interaction of AIMP2-DX2 with HSP70 suppresses cancer development.

Lim, S.Cho, H.Y.Kim, D.G.Roh, Y.Son, S.Y.Mushtaq, A.U.Kim, M.Bhattarai, D.Sivaraman, A.Lee, Y.Lee, J.Yang, W.S.Kim, H.K.Kim, M.H.Lee, K.Jeon, Y.H.Kim, S.

(2020) Nat.Chem.Biol. 16: 31-41

  • DOI: 10.1038/s41589-019-0415-2
  • Primary Citation of Related Structures:  

  • PubMed Abstract: 
  • A tumorigenic factor, AIMP2 lacking exon 2 (AIMP2-DX2), is often upregulated in many cancers. However, how its cellular level is determined is not understood. Here, we report heat-shock protein HSP70 as a critical determinant for the level of AIMP2-D ...

    A tumorigenic factor, AIMP2 lacking exon 2 (AIMP2-DX2), is often upregulated in many cancers. However, how its cellular level is determined is not understood. Here, we report heat-shock protein HSP70 as a critical determinant for the level of AIMP2-DX2. Interaction of the two factors was identified by interactome analysis and structurally determined by X-ray crystallography and NMR analyses. HSP70 recognizes the amino (N)-terminal flexible region, as well as the glutathione S-transferase domain of AIMP2-DX2, via its substrate-binding domain, thus blocking the Siah1-dependent ubiquitination of AIMP2-DX2. AIMP2-DX2-induced cell transformation and cancer progression in vivo was further augmented by HSP70. A positive correlation between HSP70 and AIMP2-DX2 levels was shown in various lung cancer cell lines and patient tissues. Chemical intervention in the AIMP2-DX2-HSP70 interaction suppressed cancer cell growth in vitro and in vivo. Thus, this work demonstrates the importance of the interaction between AIMP2-DX2 and HSP70 on tumor progression and its therapeutic potential against cancer.


    Organizational Affiliation

    College of Pharmacy, Korea University, Sejong, Republic of Korea.,College of Pharmacy, Dongguk University-Seoul, Goyang, Republic of Korea.,Department of Molecular Medicine and Biopharmaceutical Sciences, Graduate School of Convergence Science and Technology, College of Pharmacy, Seoul National University, Seoul, Republic of Korea. sungkim@snu.ac.kr.,Medicinal Bioconvergence Research Center, College of Pharmacy, Seoul National University, Seoul, Republic of Korea. sungkim@snu.ac.kr.,Medicinal Bioconvergence Research Center, College of Pharmacy, Seoul National University, Seoul, Republic of Korea.,Infection and Immunity Research Laboratory, Metabolic Regulation Research Center, Korea Research Institute of Bioscience and Biotechnology, Daejeon, Republic of Korea.




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
Heat shock 70 kDa protein 1A,Aminoacyl tRNA synthase complex-interacting multifunctional protein 2
A, B
153Homo sapiensMutation(s): 0 
Gene Names: HSPA1A (HSP72, HSPA1, HSX70), AIMP2 (JTV1)
Find proteins for P0DMV8 (Homo sapiens)
Go to Gene View: HSPA1A
Go to UniProtKB:  P0DMV8
Find proteins for Q13155 (Homo sapiens)
Go to Gene View: AIMP2
Go to UniProtKB:  Q13155
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.15001 Å
  • R-Value Free: 0.235 
  • R-Value Work: 0.174 
  • Space Group: P 21 21 21
Unit Cell:
Length (Å)Angle (°)
a = 41.111α = 90.00
b = 77.054β = 90.00
c = 88.711γ = 90.00
Software Package:
Software NamePurpose
HKL-2000data scaling
PHENIXphasing
PHENIXrefinement
HKL-2000data reduction

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History & Funding Information

Deposition Data


Funding OrganizationLocationGrant Number
National Research Foundation (Korea)Korea, Republic OfNRF-2013M3A6A4045160

Revision History 

  • Version 1.0: 2019-10-02
    Type: Initial release
  • Version 1.1: 2019-11-20
    Type: Database references
  • Version 1.2: 2019-12-18
    Type: Database references
  • Version 1.3: 2020-01-01
    Type: Database references