REL RCSB RCSB RCSB 2013-10-03 2013-10-23 2014-02-19 2014-03-19 Electron cryo-microscopy of two-stranded TubZ filament from B. thuringiensis Montabana EA Agard DA plasmid segregation, tubulin family, bacterial cytoskeleton Montabana EA Agard DA Bacterial tubulin TubZ-Bt transitions between a two-stranded intermediate and a four-stranded filament upon GTP hydrolysis. PROC.NAT.ACAD.SCI.USA 111 3407 3412 2014 24550513 doi:10.1073/pnas.1318339111 3j4t FULLOVERLAP N-terminally tagged full length TubZ from pBtoxis in Bacillus thuringiensis N-terminally tagged full length TubZ from pBtoxis in Bacillus thuringiensis Helical filament with two protofilament strands 1 ftsZ/tubulin-related protein Bacillus thuringiensis serovar israelensis 0.0543729 helical two-stranded filament true Escherichia coli Q8KNP3 IPR003008 helical filament 7.7
100 mM potassium acetate, 5 mM magnesium acetate, 50 mM HEPES
400 mesh copper grid with holey carbon support, glow discharged
 ETHANE 100 FEI VITROBOT MARK III TubZ was preheated at 37 degrees and polymerization was initiated with saturating GTPgammaS. TubZ was then incubated for 30 seconds at room temperature before sample application and plunge-freezing. Blot 4.5 seconds before plunging. FEI TECNAI F20 FLOOD BEAM BRIGHT FIELD FIELD EMISSION GUN 200 2.2 1.5 4.5 62000.0 OTHER Astigmatism corrected at 250,000 times magnification 2010-05-26 TVIPS TEMCAM-F816 (8k x 8k) 348 20
The particles were aligned using IHRSR. The azimuthal angle refined to 191.84151 degrees and the rise to 22.04811 Angstroms with a right-handed helix.
22.04811 168.15849 OTHER 10.8 FSC 0.143 CUT-OFF Spider
Final map has been low-pass filtered to 11 Angstrom and high-pass filtered to 35 Angstrom. A B-factor of -452 Angstroms was applied using the program bfactor. A cylindrical mask of radius ~78 Angstrom has been applied.
Whole micrograph
 emd_5763.map.gz 1 IMAGE STORED AS FLOATING POINT NUMBER (4 BYTES) 220 220 220 -110 -110 -110 220 220 220 264.66 264.66 264.66 90.0 90.0 90.0 X Y Z -0.16868486 0.18463798 -0.00040263 0.01309839 1.2030001 1.2030001 1.2030001 0.018 AUTHOR Helical Reconstruction of two-stranded TubZ-Bt bound to GTPgammaS
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 2XKA F RIGID BODY FIT Chimera REAL
emd_5763.jpg