REL RCSB RCSB RCSB 2013-11-15 2013-11-27 2013-11-27 2013-12-25 Helical reconstruction of hREGIIIalpha filaments on vesicles Mukherjee S Zheng H Derebe M Callenberg K Partch CL Rollins D Propheter DC Rizo J Grabe M Jiang Q-X Hooper LV C-type lectin, membrane permeabilization, pore formation, hexameric pore, innate immunity, bactericidal toxin Mukherjee S Zheng H Derebe MG Callenberg KM Partch CL Rollins D Propheter DC Rizo J Grabe M Jiang QX Hooper LV Antibacterial membrane attack by a pore-forming intestinal C-type lectin NATURE 505 103 107 2014 24256734 doi:10.1038/nature12729 hREGIIIalpha filament hREGIIIalpha filament Three-stranded helix 1 732 880 Calculated from sequence RegIIIalpha Homo sapiens Human Intestine Enterocyte 0.015 0.015
The purified protein was incubated with lipid vesicles to form the filaments.
1 monomer in solution true Escherichia coli BL21DE3-RIPL pET3a Q06141 helical filament 0.3 5.5
10 mM MES, 25 mM NaCl
Quantifoil R2/2 200 mesh holey copper grids were covered with a layer of ultra-thin carbon film (1-3 nm) from the carbon side and were glow-discharged in a Denton Vacuum DV-502A instrument with a 35 mA current for 60 s in amylamine atmosphere.
 ETHANE 92 95.15 FEI VITROBOT MARK III Blot for 2 seconds before plunging into liquid ethane JEOL 2200FS SPOT SCAN BRIGHT FIELD FIELD EMISSION GUN 200 2.0 0.8 2.5 60000.0 61950.0 SIDE ENTRY, EUCENTRIC 93 103 100 corrected at 60,000x magnification FEI 0.0 35.0 2010-12-27 KODAK SO-163 FILM ZEISS SCAI 14 75 20
The Zeiss SCAI scanner can handle six 4 x 5 inches Kodak SO-163 films at one time, so only films with no obvious drift or astigmatism were scanned.
1.5 8. Liquid nitrogen cooled
IHRSR method was used. We could not determine handedness from tilt pairs as our microscope did not allow stable high-quality data collection.
18.52 54.21 OTHER 9.2 OTHER Spider
Final data were calculated from three separate datasets from three sessions of data collection.
Each filament
 emd_5795.map.gz 1 IMAGE STORED AS FLOATING POINT NUMBER (4 BYTES) 100 100 160 0 0 0 100 100 160 226.0 226.0 361.6 90.0 90.0 90.0 X Y Z -2.15929651 2.73892903 -0.00271109 0.24077381 2.26 2.26 2.26 0.1 AUTHOR Helical reconstruction of hREGIIIalpha filaments on vesicles
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 4MTH A RIGID BODY FIT Chimera, Situs
The docking of one X-ray model into a segmented map corresponding to one subunit was first done manually in Chimera, and then optimized using Situs.
cross-correlation REAL 20.760000000000002