JV918 Legionella thyA ΔdotB

Description

Technical info

Tilt Series Date: 2017-08-08

Data Taken By: Debnath Ghosal

Species / Specimen: Legionella pneumophila

Strain: Philadelphia-1_Lp02

Tilt Series Settings: Single Axis, tilt range: (-60.0°, 60.0°), step: 2°, constant angular increment, dosage: 100.0 eV/Ų, defocus: -7.0 μm, magnification: 27500x.

Microscope: Caltech Polara

Acquisition Software: UCSFTomo

Upload Method: pipeline

Processing Software Used: Raptor

Collaborators and Roles: Strain sent to us by Joseph P. Vogel, Washington University School of Medicine. Data collected and processed by Debnath Ghosal at F30, Caltech.

Purification / Growth Conditions / Treatment: Cells were grown in AYE liquid culture with following supplements: ferric nitrate, cysteine hydrochloride and thymidine. Scrape cells off a plate, dissolve in the media, adjust the cell density to 0.6 and make a dilution series. Start O/N culture with all of them and freeze cells next day from the one in early stationary phase that is OD ~ 3.0. This time cell density was ~2.6.

Sample Preparation: 8 grids were frozen for this strain at OD~2.9. Vitrobot (MK iv) settings: 100% humidity, 4µl sample, Blot force 6, blot time 3 sec. Wait time 0 sec. Drain time 1 sec. Ethane/propane mix. Grid: Quantifoil Cu 2/2 200. Add gold to cells prior to freezing: 1ul of gold to 4 ul of cells, freeze.

Attached Files

20170808_JV918a0024.mrc, Tilt Series (Pixel Size 0.39 nm), 1.7 GB

20170808_JV918a0024_full.rec, Reconstruction (Pixel Size 1.56 nm), 445.4 MB

dga2017-08-08-24_slicer18708.png, Have seen many times in Legionella., 646.9 kB