REL PDBe PDBe PDBe 2015-05-21 2015-06-10 2015-06-10 2015-06-10 Structure of the type IV pilus from Thermus thermophilus Gold VAM Salzer R Averhoff B Kuehlbrandt W Electron cryo-tomography, subtomogram averaging, type IV pilus, DNA transporter, bacterial secretion, T. thermophilus Gold VAM Salzer R Averhoff B Kuehlbrandt W Structure of a type IV pilus machinery in the open and closed state elife 4 2015 25997099 doi:10.7554/eLife.07380 Type IV pilus Type IV pilus Thousands of copies of PilA4 form the type IV pilus 1 Type IV pilus Thermus thermophilus HB27 false subtomogramAveraging cell 7.4
20 mM Tris, 100 mM EDTA
300 mesh copper grid with quantifoil support film (R2/2), glow discharged
 ETHANE 20 HOMEMADE PLUNGER Cell solutions were mixed 1:1 (v/v) with 10 nm ProteinA-gold particles. 3 microlitres of sample were applied to grids and blotted on one side for ~5s before plunging FEI TITAN KRIOS FLOOD BEAM BRIGHT FIELD FIELD EMISSION GUN 300 2.7 5.0 5.0 33000.0 11640.0 FEI TITAN KRIOS AUTOGRID HOLDER Objective lens astigmatism was corrected on the K2 camera at magnification used for imaging GIF Quantum 0.0 20.0 2014-12-17 GATAN K2 (4k x 4k) 140
Each image in every tilt series is a drift corrected sum of 3-5 frames
 Nitrogen cooled -60 60
Subvolumes of 2 nm length were selected along the pili
C1 32.0 OTHER IMOD, (ETOMO, &, PEET), Spider 740
CTF correction of each tilt image using IMOD
 emd_3024.map.gz 1 IMAGE STORED AS FLOATING POINT NUMBER (4 BYTES) 35 40 35 0 0 -3 40 35 35 147.315 168.36 147.315 90.0 90.0 90.0 X Y Z 136.0 147.0 140.528198239999995 1.21712947 4.209 4.209 4.209 143.300000000000011 AUTHOR Subtomogram average of the Thermus thermophilus type IV pilus.
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emd_3024.tif