REL PDBe PDBe PDBe 2013-01-21 2013-02-27 2013-03-13 2013-07-24 First 3D model of wild type MjHSP16.5 at 60 degree Celsius by CryoEM. Roy A Q Yan Z Andrew L Ian W Ehmke P Fei S Small heat shock protein, HSP16.5 Quinlan RA Zhang Y Lansbury A Williamson I Pohl E Sun F Changes in the quaternary structure and function of MjHSP16.5 attributable to deletion of the IXI motif and introduction of the substitution, R107G, in the -crystallin domain. Philos Trans R Soc Lond B Biol Sci 368 20120327 20120327 2013 23530263 doi:10.1098/rstb.2012.0327 wild type small heat shock protein (sHSP) HSP16.5 from Methanocaldococcus jannaschii (MjHSP16.5) wild type small heat shock protein (sHSP) HSP16.5 from Methanocaldococcus jannaschii (MjHSP16.5) 24mer 1 0.396 0.396 MjHSP16.5 Methanocaldococcus jannaschii cytoplasmic 0.0165 0.0165 24 24mer true Escherichia coli pET23b Q57733 GO:0005737 GO:0006950 IPR002068 IPR008978 singleParticle particle 0.8 7.4
10mM HEPES, 100mM NaCl.
GIG holey grids (LifeTrust, China) were treated with a glow discharge machine (Master Plasmer)
 ETHANE 9 FEI VITROBOT MARK IV The samples were first heated to 60 degree Celsius in the boiler, then 3.5 microlitre samples were added to the grid and blotted for 1.5 s with blot force 2 at 100% humidity; FEI TITAN KRIOS FLOOD BEAM BRIGHT FIELD FIELD EMISSION GUN 300 2.7 2.0 3.0 96000.0 FEI TITAN KRIOS AUTOGRID HOLDER 85 2012-10-11 GATAN ULTRASCAN 4000 (4k x 4k) 2119 20
Electron micrograph exposures were made with the automatic collection package Leginon.
32. liquid nitrogen cooled
The particles were selected using an automatic selection program Gautomatch developed in Fei Sun lab (to be published). Octahedron symmetry were imposed during 3D reconstructing.
Each image
 O OTHER 14.0 FSC 0.5 CUT-OFF EMAN1
The final reconstructed density map was further sharpened by application of an amplitude correction algorithm in the program BFACTOR.
4842 193 emd_2290.map.gz 1 IMAGE STORED AS FLOATING POINT NUMBER (4 BYTES) 256 256 256 -128 -128 -128 256 256 256 238.848 238.848 238.848 90.0 90.0 90.0 X Y Z -6.68931007 8.134586329999999 0.00061734 1.02556777 0.933 0.933 0.933 1.73 AUTHOR First model for reconstruction of wild type MjHSP16.5 at 60 degree Celsius
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