1H4L

Structure and regulation of the CDK5-p25(nck5a) complex


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.65 Å
  • R-Value Free: 0.287 
  • R-Value Work: 0.236 

wwPDB Validation 3D Report Full Report


This is version 1.2 of the entry. See complete history

Literature

Structure and Regulation of the Cdk5-P25(Nck5A) Complex

Tarricone, C.Dhavan, R.Peng, J.Areces, L.B.Tsai, L.-H.Musacchio, A.

(2001) Mol.Cell 8: 657


  • PubMed Abstract: 
  • CDK5 plays an indispensable role in the central nervous system, and its deregulation is involved in neurodegeneration. We report the crystal structure of a complex between CDK5 and p25, a fragment of the p35 activator. Despite its partial structural ...

    CDK5 plays an indispensable role in the central nervous system, and its deregulation is involved in neurodegeneration. We report the crystal structure of a complex between CDK5 and p25, a fragment of the p35 activator. Despite its partial structural similarity with the cyclins, p25 displays an unprecedented mechanism for the regulation of a cyclin-dependent kinase. p25 tethers the unphosphorylated T loop of CDK5 in the active conformation. Residue Ser159, equivalent to Thr160 on CDK2, contributes to the specificity of the CDK5-p35 interaction. Its substitution with threonine prevents p35 binding, while the presence of alanine affects neither binding nor kinase activity. Finally, we provide evidence that the CDK5-p25 complex employs a distinct mechanism from the phospho-CDK2-cyclin A complex to establish substrate specificity.


    Organizational Affiliation

    Structural Biology Unit, Department of Experimental Oncology, European Institute of Oncology, Via Ripamonti 435, I-20141 Milan, Italy.




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
CELL DIVISION PROTEIN KINASE 5
A, B
292Homo sapiensGene Names: CDK5 (CDKN5)
EC: 2.7.11.1
Find proteins for Q00535 (Homo sapiens)
Go to Gene View: CDK5
Go to UniProtKB:  Q00535
Entity ID: 2
MoleculeChainsSequence LengthOrganismDetails
CYCLIN-DEPENDENT KINASE 5 ACTIVATOR
D, E
147Homo sapiensGene Names: CDK5R1 (CDK5R, NCK5A)
Find proteins for Q15078 (Homo sapiens)
Go to Gene View: CDK5R1
Go to UniProtKB:  Q15078
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.65 Å
  • R-Value Free: 0.287 
  • R-Value Work: 0.236 
  • Space Group: C 1 2 1
Unit Cell:
Length (Å)Angle (°)
a = 149.090α = 90.00
b = 89.760β = 93.08
c = 82.570γ = 90.00
Software Package:
Software NamePurpose
CNSrefinement
DENZOdata reduction
AMoREphasing
SCALEPACKdata scaling

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2002-08-14
    Type: Initial release
  • Version 1.1: 2011-05-08
    Type: Version format compliance
  • Version 1.2: 2011-07-13
    Type: Version format compliance