3ENH

Crystal structure of Cgi121/Bud32/Kae1 complex


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 3.60 Å
  • R-Value Free: 0.324 
  • R-Value Work: 0.271 
  • R-Value Observed: 0.274 

wwPDB Validation 3D Report Full Report


This is version 1.1 of the entry. See complete history


Literature

Atomic Structure of the KEOPS Complex: An Ancient Protein Kinase-Containing Molecular Machine

Mao, D.Y.L.Neculai, D.Downey, M.Orlicky, S.Haffani, Y.Z.Ceccarelli, D.F.Ho, J.S.L.Szilard, R.K.Zhang, W.Ho, C.S.Wan, L.Fares, C.Rumpel, S.Kurinov, I.Arrowsmith, C.H.Durocher, D.Sicheri, F.

(2008) Mol Cell 32: 259-275

  • DOI: 10.1016/j.molcel.2008.10.002
  • Structures With Same Primary Citation

  • PubMed Abstract: 
  • Kae1 is a universally conserved ATPase and part of the essential gene set in bacteria. In archaea and eukaryotes, Kae1 is embedded within the protein kinase-containing KEOPS complex. Mutation of KEOPS subunits in yeast leads to striking telomere and ...

    Kae1 is a universally conserved ATPase and part of the essential gene set in bacteria. In archaea and eukaryotes, Kae1 is embedded within the protein kinase-containing KEOPS complex. Mutation of KEOPS subunits in yeast leads to striking telomere and transcription defects, but the exact biochemical function of KEOPS is not known. As a first step to elucidating its function, we solved the atomic structure of archaea-derived KEOPS complexes involving Kae1, Bud32, Pcc1, and Cgi121 subunits. Our studies suggest that Kae1 is regulated at two levels by the primordial protein kinase Bud32, which is itself regulated by Cgi121. Moreover, Pcc1 appears to function as a dimerization module, perhaps suggesting that KEOPS may be a processive molecular machine. Lastly, as Bud32 lacks the conventional substrate-recognition infrastructure of eukaryotic protein kinases including an activation segment, Bud32 may provide a glimpse of the evolutionary history of the protein kinase family.


    Organizational Affiliation

    Samuel Lunenfeld Research Institute, Mount Sinai Hospital, 600 University Avenue, Toronto, ON, M5G 1X5, Canada.



Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
Putative O-sialoglycoprotein endopeptidase
A, B
540Methanocaldococcus jannaschiiMutation(s): 0 
Gene Names: gcpMJ1130
EC: 3.4.24.57 (PDB Primary Data), 2.3.1.234 (UniProt), 2.7.11.1 (UniProt)
Find proteins for Q58530 (Methanocaldococcus jannaschii (strain ATCC 43067 / DSM 2661 / JAL-1 / JCM 10045 / NBRC 100440))
Go to UniProtKB:  Q58530

Find similar proteins by: Sequence  |  Structure

Entity ID: 2
MoleculeChainsSequence LengthOrganismDetails
Uncharacterized protein MJ0187
C, D
150Methanocaldococcus jannaschiiMutation(s): 0 
Gene Names: MJ0187
Find proteins for Q57646 (Methanocaldococcus jannaschii (strain ATCC 43067 / DSM 2661 / JAL-1 / JCM 10045 / NBRC 100440))
Go to UniProtKB:  Q57646
Small Molecules
Ligands 1 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
TBR
Query on TBR

Download CCD File 
A, B
HEXATANTALUM DODECABROMIDE
Br12 Ta6
YWYIQTPPCOBSGN-UHFFFAOYSA-M
 Ligand Interaction
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 3.60 Å
  • R-Value Free: 0.324 
  • R-Value Work: 0.271 
  • R-Value Observed: 0.274 
  • Space Group: P 21 21 21
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 76.99α = 90
b = 106.91β = 90
c = 209.48γ = 90
Software Package:
Software NamePurpose
CBASSdata collection
PHASERphasing
REFMACrefinement
XDSdata reduction
XDSdata scaling

Structure Validation

View Full Validation Report



Entry History 

Deposition Data

  • Deposited Date: 2008-09-25 
  • Released Date: 2008-10-28 
  • Deposition Author(s): Neculai, D.

Revision History 

  • Version 1.0: 2008-10-28
    Type: Initial release
  • Version 1.1: 2011-07-13
    Changes: Advisory, Refinement description, Version format compliance