REL PDBj RCSB PDBj 2013-03-20 2013-05-08 2013-05-15 2013-08-28 Structural dynamics and inter-ring communication of the MecA-ClpC complex during active substrate unfolding and translocation revealed by cryo-EM Liu J Mei Z Li N Qi Y Xu Y Shi Y Wang F Lei J Gao N unfolding, AAA+ ATPase, MecA, ClpC Liu J Mei Z Li N Qi Y Xu Y Shi Y Wang F Lei J Gao N Structural dynamics of the MecA-ClpC complex: a type II AAA+ protein unfolding machine. J.BIOL.CHEM. 288 17597 17608 2013 23595989 doi:10.1074/jbc.M113.458752 3j3t FULLOVERLAP MecA-ClpC(E280A) MecA-ClpC(E280A)
Mutant was generated by introducing Walker B mutations: E280A. The mutant ClpC can bind ATP but not be able to hydrolyze ATP.The protein complex was diluted with buffer, followed by an incubation in water bath at 300K for 40 minutes.
Hexamer of ClpC with 6 bound MecA 2 0.6 0.6 MecA Bacillus subtilis 168 6 true Escherichia coli BL21 PET-27A ClpC Bacillus subtilis 168 6 Hexamer true Escherichia coli BL21 PET-27A singleParticle particle 0.03 7.5
50mM kCl, 10mM Tris-HCL,2mM MgCl2, 2mM ATP
 ETHANE 100 90 FEI VITROBOT MARK IV Blot for 2 seconds before plunging FEI TITAN KRIOS FLOOD BEAM BRIGHT FIELD FIELD EMISSION GUN 300 1.5 3.0 59000.0 FEI TITAN KRIOS AUTOGRID HOLDER 2011-03-09 FEI EAGLE (4k x 4k) 994 20
each defocus group on 3D level
 OTHER 9.0 FSC 0.5 CUT-OFF SPIDER 45514 emd_5607.map.gz 1 IMAGE STORED AS FLOATING POINT NUMBER (4 BYTES) 150 150 150 -74 -74 -74 150 150 150 225.0 225.0 225.0 90.0 90.0 90.0 X Y Z -4.42900324 8.11595058 0.0016236 0.99658817 1.5 1.5 1.5 1.5 AUTHOR Reconstruction of MecA-ClpC(E280A) with ATP, MW-ATP
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 3PXI FLEXIBLE FIT MDFF
Protocol: Initial local fitting was done using Chimera and then MDFF was used for flexible fitting. ref: Trabuco, L.G., Villa, E., Mitra, K., Frank, J. and Schulten, K. (2008) Flexible fitting of atomic structures into electron microscopy maps using molecular dynamics.
Cross-correlation REAL