REL PDBe PDBe PDBe 2011-02-16 2011-02-18 2011-04-21 2012-10-24 CryoEM structure of the chromatin remodelling factor ISW1a bound to a mononucleosome (45N29) Frouws TD Richmond TJ Nucleosome,chromatin remodelling factor, ISW1a, ISWI Yamada K Frouws TD Angst B Fitzgerald DJ DeLuca C Schimmele K Sargent DF Richmond TJ Structure and mechanism of the chromatin remodelling factor ISW1a. NATURE 472 448 453 2011 21525927 doi:10.1038/nature09947 Chromatin remodelling factor ISW1a (delta ATPase) bound to a mononucleosome (with 45 and 29 bp extensions). Chromatin remodelling factor ISW1a (delta ATPase) bound to a mononucleosome (with 45 and 29 bp extensions). Monomer 2 0.38 Nucleosome Xenopus laevis 256
Nucleosomes consist of recombinant xenopus histones H2A,H2B,H3,H4, reconstituted onto '601' DNA with 45 and 29 bp extensions.
true Escherichia coli BL21(DE3) ISW1a Saccharomyces cerevisiae 120
Recombinant yeast ISW1a (delta ATPase) expressed with MultiBac system
true Spodoptera frugiperda singleParticle particle 3.5 7.5
10mM TrisCl, 10mM KCl, 0.1mM EDTA
C-flat 224
 ETHANE 90 100 FEI VITROBOT MARK II
Vitrification instrument: Vitribot MKII
0 offset, 4 sec blot, 1 sec drain FEI TECNAI F20 FLOOD BEAM BRIGHT FIELD FIELD EMISSION GUN 200 2.0 1.5 4.5 80000.0 51606.0 GATAN LIQUID NITROGEN 100 Gatan
Low dose
GENERIC GATAN 14 20 16. Eucentric
Semi-automated picking in EMAN BOXER
Class averages
 C1 OTHER 22.0 FSC 0.5 CUT-OFF SPIDER
Start model created by common-lines, then iterated with projection matching.
13206
theta 90, phi 180
 195 emd_1877.map.gz 1 IMAGE STORED AS FLOATING POINT NUMBER (4 BYTES) 128 128 128 0 0 0 128 128 128 345.6 345.6 345.6 90 90 90 X Y Z -0.0718889 0.170402 0.000116232 0.0137858 2.7 2.7 2.7 0.05 AUTHOR Surface rendering of 45N29-ISW1a (delta ATPase)
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 1KX5 RIGID BODY FIT Chimera
Manually fitted in Chimera, and missing DNA segments were built in.
REAL