REL PDBe PDBe PDBe 2010-07-15 2011-03-11 2011-07-14 2014-11-26 Single particle analysis of Kir2.1NC_4 in negative stain Fomina S Howard TD Sleator OK Golovanova M O'Ryan L Leyland M Grossmann JG Collins RF Prince SM Ion Channel, cytoplasmic domain, inwardly rectifying, membrane protein, homotetramer Fomina S Howard TD Sleator OK Golovanova M O'Ryan L Leyland ML Grossmann JG Collins RF Prince SM Self-directed assembly and clustering of the cytoplasmic domains of inwardly rectifying Kir2.1 potassium channels on association with PSD-95. BIOCHIM.BIOPHYS.ACTA 1808 2374 2389 2011 21756874 doi:10.1016/j.bbamem.2011.06.021 2xky FULLOVERLAP mouse Kir2.1, cytoplamic domain, homotetramer of fused N,C termini mouse Kir2.1, cytoplamic domain, homotetramer of fused N,C termini Tetramer 1 0.14 0.14 SDS-PAGE for Kir2.1NC construct x 4 Kir2.1 cytoplasmic domain Mus musculus Mouse Membrane 0.14 0.14 4 Tetramer true Escherichia coli pET15b GO:0016021 IPR003271 singleParticle particle 1 7.5
20mM Tris/HCl, 150mM NaCl, 1mM reduced GSH, 1mM EDTA, 50mM L-Glutamic acid, 50mM L-Arginine
 NEGATIVE
Samples were adsorbed onto freshly glow discharged carbon film grids. Sample solution was pipetted into the grid followed by blotting, de-ionized water was then applied for 10s followed by blotting, 2% w/v Uranyl Acetate solution was applied followed by a final blotting step.
400 mesh Copper
 NONE OTHER FEI TECNAI 10 FLOOD BEAM BRIGHT FIELD TUNGSTEN HAIRPIN 100 2.0 0.6 1.25 JEOL
Low dose
GATAN ORIUS SC200 (2k x 2k) OTHER 10 22 8. Eucentric 0 0
Particles initially selected using automated particle picking based on a subset of representative particles on a single micrograph, followed by model-based picking.
Parameters determined using Scattering curve
 C4 17.2 FSC 0.5 CUT-OFF EMAN 49012 62 emd_1764.map.gz 1 IMAGE STORED AS FLOATING POINT NUMBER (4 BYTES) 64 64 64 -32 -32 -32 64 64 64 187.52 187.52 187.52 90.0 90.0 90.0 X Y Z -1.18297374 3.58607507 0.0 0.32558325 2.93 2.93 2.93 1.0 AUTHOR 3d map of the Kir2.1NC_4 tetramer, C_4 symmetry applied
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 1U4F Chimera
Tetramer model assembled using SAXS refinement and docked
REAL