2019-07-03 REL RCSB RCSB RCSB 2017-11-28 2018-01-31 2018-12-19 2019-07-03 Setiaputra DT Dalwadi U Yip CK Setiaputra D Ahmad S Dalwadi U Steunou AL Lu S Ross JD Dong MQ Cote J Yip CK Mol.Cell.Biol. US 38 2018 29463645 doi:10.1128/MCB.00570-17 1098-5549 2044 MCEBD4 EMD-7131 associated EM volume Chromatin-modifying complex Chromatin-modifying complex 0 Saccharomyces cerevisiae BJ1991 Nucleus 1 singleParticle particle 7.4 350.0 NaCl Sodium chloride 40.0 C8H18N2O4S HEPES 20.0 C3H8O3 Glycerol 2.0 Mg(CH3COO)2 Magnesium acetate 0.02 C5H8O2 Glutaraldehyde 0.1 C32H58N2O7S CHAPS NEGATIVE Uranyl formate

Negatively-stained EM specimens were prepared by uranyl formate staining on continuous carbon-overlaid copper grids.

Ted Pella COPPER 400 FORMVAR CONTINUOUS GLOW DISCHARGE AIR 101.325

Complexes were purified from yeast via affinity purification for a FLAG-tagged subunit. Purified complexes were subjected to glycerol gradient ultracentrifugation, fractionated, and analyzed by negative-stain electron microscopy.

FEI TECNAI SPIRIT FLOOD BEAM BRIGHT FIELD LAB6 120 1.0 1.5 49000. SIDE ENTRY, EUCENTRIC NITROGEN FEI EAGLE (4k x 4k) 1365 1365 1 251 1.0 25.0 1 26402

A subset of 200 particles were picked manually using the RELION software and used to generate reference-free 2D class averages. Representative class averages were used as templates for automatic picking using RELION.

CTFFIND 3 CTFFIND3 was used to fit CTFs to raw micrographs using the SPIDER interface. SPIDER 22.10 SPIDER was used to phase flip images for CTF correction.

CTFs of raw images were determined using CTFFIND3 and the images were phase-flipped using the SPIDER image suite.

60 1 C1 BACK PROJECTION 26.5 FSC 0.143 CUT-OFF RELION 2 7976 NOT APPLICABLE EMAN 2.12 PROJECTION MATCHING 3072 1.875 RELION 2 RCT model was used as starting model for 3D classification and refinement using untilted dataset. 4 5791.0 RELION 2 RCT model was used as starting model for 3D classification using untilted dataset.