3G33

Crystal structure of CDK4/cyclin D3


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 3 Å
  • R-Value Free: 0.314 
  • R-Value Work: 0.281 

wwPDB Validation 3D Report Full Report


This is version 1.2 of the entry. See complete history

Literature

The structure of CDK4/cyclin D3 has implications for models of CDK activation.

Takaki, T.Echalier, A.Brown, N.R.Hunt, T.Endicott, J.A.Noble, M.E.

(2009) Proc.Natl.Acad.Sci.USA 106: 4171-4176

  • DOI: 10.1073/pnas.0809674106

  • PubMed Abstract: 
  • Cyclin-dependent kinase 4 (CDK4)/cyclin D complexes are expressed early in the G(1) phase of the cell cycle and stimulate the expression of genes required for G(1) progression by phosphorylation of the product of the retinoblastoma gene, pRb. To elab ...

    Cyclin-dependent kinase 4 (CDK4)/cyclin D complexes are expressed early in the G(1) phase of the cell cycle and stimulate the expression of genes required for G(1) progression by phosphorylation of the product of the retinoblastoma gene, pRb. To elaborate the molecular pathway of CDK4 activation and substrate selection we have determined the structure of nonphosphorylated CDK4/cyclin D3. This structure of an authentic CDK/cyclin complex shows that cyclin binding may not be sufficient to drive the CDK active site toward an active conformation. Phosphorylated CDK4/cyclin D3 is active as a pRb kinase and is susceptible to inhibition by p27(Kip1). Unlike CDK2/cyclin A, CDK4/cyclin D3 can be inactivated by treatment with lambda-phosphatase, implying that phosphorylated T172 is accessible to a generic phosphatase while bound to a cyclin. Taken together, these results suggest that the structural mechanism of CDK4/cyclin D3 activation differs markedly from that of previously studied CDK/cyclin complexes.


    Organizational Affiliation

    Cell Cycle Control Laboratory, Clare Hall Laboratories, London Research Institute, Blanche Lane, South Mimms, Herts EN6 3LD, United Kingdom.




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
Cell division protein kinase 4
A, C
308Homo sapiensMutation(s): 0 
Gene Names: CDK4
EC: 2.7.11.22
Find proteins for P11802 (Homo sapiens)
Go to Gene View: CDK4
Go to UniProtKB:  P11802
Entity ID: 2
MoleculeChainsSequence LengthOrganismDetails
CCND3 protein
B, D
306Homo sapiensMutation(s): 0 
Gene Names: CCND3
Find proteins for P30281 (Homo sapiens)
Go to Gene View: CCND3
Go to UniProtKB:  P30281
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 3 Å
  • R-Value Free: 0.314 
  • R-Value Work: 0.281 
  • Space Group: P 42 21 2
Unit Cell:
Length (Å)Angle (°)
a = 141.297α = 90.00
b = 141.297β = 90.00
c = 143.530γ = 90.00
Software Package:
Software NamePurpose
PHASERphasing
ADSCdata collection
SCALEPACKdata scaling
REFMACrefinement
MOSFLMdata reduction

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2009-03-10
    Type: Initial release
  • Version 1.1: 2011-07-13
    Type: Advisory, Version format compliance
  • Version 1.2: 2017-08-23
    Type: Data collection