2N19

STIL binding to the Polo-box domain 3 of PLK4 regulates centriole duplication


Experimental Data Snapshot

  • Method: SOLUTION NMR
  • Conformers Calculated: 100 
  • Conformers Submitted: 20 
  • Selection Criteria: target function 

wwPDB Validation 3D Report Full Report


This is version 1.3 of the entry. See complete history

Literature

STIL binding to Polo-box 3 of PLK4 regulates centriole duplication.

Arquint, C.Gabryjonczyk, A.M.Imseng, S.Bohm, R.Sauer, E.Hiller, S.Nigg, E.A.Maier, T.

(2015) Elife 4: --

  • DOI: 10.7554/eLife.07888
  • Primary Citation of Related Structures:  4YYP

  • PubMed Abstract: 
  • Polo-like kinases (PLK) are eukaryotic regulators of cell cycle progression, mitosis and cytokinesis; PLK4 is a master regulator of centriole duplication. Here, we demonstrate that the SCL/TAL1 interrupting locus (STIL) protein interacts via its coil ...

    Polo-like kinases (PLK) are eukaryotic regulators of cell cycle progression, mitosis and cytokinesis; PLK4 is a master regulator of centriole duplication. Here, we demonstrate that the SCL/TAL1 interrupting locus (STIL) protein interacts via its coiled-coil region (STIL-CC) with PLK4 in vivo. STIL-CC is the first identified interaction partner of Polo-box 3 (PB3) of PLK4 and also uses a secondary interaction site in the PLK4 L1 region. Structure determination of free PLK4-PB3 and its STIL-CC complex via NMR and crystallography reveals a novel mode of Polo-box-peptide interaction mimicking coiled-coil formation. In vivo analysis of structure-guided STIL mutants reveals distinct binding modes to PLK4-PB3 and L1, as well as interplay of STIL oligomerization with PLK4 binding. We suggest that the STIL-CC/PLK4 interaction mediates PLK4 activation as well as stabilization of centriolar PLK4 and plays a key role in centriole duplication.


    Organizational Affiliation

    Biozentrum, University of Basel, Basel, Switzerland.




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
Serine/threonine-protein kinase PLK4
A
88Homo sapiensGene Names: PLK4 (SAK, STK18)
EC: 2.7.11.21
Find proteins for O00444 (Homo sapiens)
Go to Gene View: PLK4
Go to UniProtKB:  O00444
Experimental Data & Validation

Experimental Data

  • Method: SOLUTION NMR
  • Conformers Calculated: 100 
  • Conformers Submitted: 20 
  • Selection Criteria: target function 

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2015-08-12
    Type: Initial release
  • Version 1.1: 2016-05-11
    Type: Database references
  • Version 1.2: 2016-05-25
    Type: Database references
  • Version 1.3: 2016-12-28
    Type: Database references