4RS6

Crystal structure of the C domain of Polo like Kinase II in Homo Sapiens


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.6 Å
  • R-Value Free: 0.247 
  • R-Value Work: 0.186 

wwPDB Validation 3D Report Full Report


This is version 1.1 of the entry. See complete history

Literature

Crystal structure of the polo-box domain of polo-like kinase 2

Shan, H.M.Wang, T.Quan, J.M.

(2015) Biochem.Biophys.Res.Commun. 456: 780-784

  • DOI: 10.1016/j.bbrc.2014.11.125

  • PubMed Abstract: 
  • Polo-like kinase 2 (PLK2) is a crucial regulator in cell cycle progression, DNA damage response, and neuronal activity. PLK2 is characterized by the conserved N-terminal kinase domain and the unique C-terminal polo-box domain (PBD). The PBD mediates ...

    Polo-like kinase 2 (PLK2) is a crucial regulator in cell cycle progression, DNA damage response, and neuronal activity. PLK2 is characterized by the conserved N-terminal kinase domain and the unique C-terminal polo-box domain (PBD). The PBD mediates diverse functions of PLK2 by binding phosphorylated Ser-pSer/pThr motifs of its substrates. Here, we report the first crystal structure of the PBD of PLK2. The overall structure of the PLK2 PBD is similar to that of the PLK1 PBD, which is composed by two polo boxes each contain β6α structures that form a 12-stranded β sandwich domain. The edge of the interface between the two polo boxes forms the phosphorylated Ser-pSer/pThr motifs binding cleft. On the hand, the peripheral regions around the core binding cleft of the PLK2 PBD is distinct from that of the PLK1 PBD, which might confer the substrate specificity of the PBDs of the polo-like kinase family.


    Organizational Affiliation

    Laboratory for Computational Chemistry & Drug Design, School of Chemical Biology & Biotechnology, Peking University, Shenzhen Graduate School, Shenzhen 518055, China. Electronic address: tau@pku.edu.cn.,Key Laboratory of Structural Biology, School of Chemical Biology & Biotechnology, Peking University Shenzhen Graduate School, Shenzhen 518055, China. Electronic address: quanjm@pkusz.edu.cn.,Key Laboratory of Structural Biology, School of Chemical Biology & Biotechnology, Peking University Shenzhen Graduate School, Shenzhen 518055, China.




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
Serine/threonine-protein kinase PLK2
A, B
242Homo sapiensMutation(s): 0 
Gene Names: PLK2 (SNK)
EC: 2.7.11.21
Find proteins for Q9NYY3 (Homo sapiens)
Go to Gene View: PLK2
Go to UniProtKB:  Q9NYY3
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.6 Å
  • R-Value Free: 0.247 
  • R-Value Work: 0.186 
  • Space Group: I 2 3
Unit Cell:
Length (Å)Angle (°)
a = 153.075α = 90.00
b = 153.075β = 90.00
c = 153.075γ = 90.00
Software Package:
Software NamePurpose
Blu-Icedata collection
HKL-2000data reduction
PHENIXphasing
REFMACrefinement
HKL-2000data scaling
PHENIXmodel building

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2014-12-03
    Type: Initial release
  • Version 1.1: 2016-06-08
    Type: Database references