REL RCSB RCSB RCSB 2014-11-18 2014-12-03 2014-12-03 2016-02-10 High-resolution structures of kinesin on microtubules provide a basis for nucleotide-gated force generation Shang ZG Zhou KF Xu C Csencsits R Cochran JC Sindelar CV Shang ZG Zhou KF Xu C Csencsits R Cochran JC Sindelar CV High-resolution structures of kinesin on microtubules provide a basis for nucleotide-gated force generation. eLife 3 e04686 e04686 2014 25415053 doi:10.7554/eLife.04686 3j8y FULLOVERLAP Microtubule decorated with monomeric human kinesin (K349 construct) having ADP aluminum fluoride complex bound in the nucleotide pocket. Microtubule decorated with monomeric human kinesin (K349 construct) having ADP aluminum fluoride complex bound in the nucleotide pocket.
Microtubule decorated with monomeric human kinesin
One monomer of kinesin binds to one heterodimer of tubulin 2 0.135 monomeric kinesin-1A Homo sapiens human 0.038
K349
1 monomer true Escherichia coli BL21(DE3) pHB40p P33176 tubulin Sus scrofa pig heterodimer false helical filament 6.8
25 mM PIPES, 25 mM NaCl, 2 mM MgCl2, 1 mM EGTA
300 mesh copper grid with homemade holey carbon
 ETHANE HOMEMADE PLUNGER No glow discharged applied; after sample application to grid, liquid was mostly 'wicked' away by edgewise application of filter paper. Subsequently, blotting and plunge freezing were performed with a ~0.5 second delay after blotting but prior to plunging. FEI TITAN FLOOD BEAM BRIGHT FIELD FIELD EMISSION GUN 300 2.0 1.0 2.5 23859.400000000001455 GATAN LIQUID NITROGEN
4K x 4K counting mode was used; 24 frames total were collected.
2013-06-02 GATAN ULTRASCAN 4000 (4k x 4k) 51 15
Each image was collected as a stack of 24 movie frames.
Initial alignment was done using customized SPIDER scripts. Reconstruction and subsequent refinement were done by FREALIGN.
9.455 25.71 C1 OTHER 5.0 OTHER SPIDER, FREALIGN
Approximately 33,600 asymmetric units were averaged in the final reconstruction.
done within FREALIGN
 emd_6188.map.gz 1 IMAGE STORED AS FLOATING POINT NUMBER (4 BYTES) 320 320 91 -159 -159 -54 320 320 91 671.04 671.04 190.827 90.0 90.0 90.0 X Y Z -0.03248612 0.06490891 -0.00070997 0.00664195 2.097 2.097 2.097 0.027 AUTHOR Microtubule decorated with monomeric human kinesin (K349 construct) having ADP aluminum fluoride complex bound in the nucleotide pocket.
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 4HNA K A B FLEXIBLE FIT MDFF
MDFF was performed using explicit solvation. Side chains were removed from the MDFF target potential. Following several equilibration steps, the relative strength of the EM map potential (GSCALE term) was slowly increased from 0 to 1 over the course of 10 nanoseconds. The t = 1.2 ns time point was selected to represent the final fitted model, based on the approximate convergence of the RMSD from the starting structure.
RMSD from the starting structure was monitored for convergence REAL