2023-03-08 REL RCSB RCSB RCSB 2022-09-02 2023-02-15 2023-02-15 2023-03-08 National Institutes of Health/National Institute of General Medical Sciences (NIH/NIGMS) United States Dimerized Mediator PIC with early GTFs on a divergent promoter Palao III L Gorbea Colon JJ Palao 3rd L Chen SF Kim HJ Snyder L Chang YW Tsai KL Murakami K Structural basis of a transcription pre-initiation complex on a divergent promoter. Mol.Cell US 83 574 588.e11 2023 36731470 doi:10.1016/j.molcel.2023.01.011 1097-2765 2168 MOCEFL EMD-26542 other EM volume EMD-26543 other EM volume EMD-26544 other EM volume EMD-26545 other EM volume EMD-26547 other EM volume EMD-26548 other EM volume EMD-26551 other EM volume EMD-28023 other EM volume EMD-28024 associated EM volume Complex of Mediator, RNA Polymerase II, and general transcription factors (TFIIA, TFIIB, TBP, TFIIF, TFIIS) on a divergent promoter. Complex of Mediator, RNA Polymerase II, and general transcription factors (TFIIA, TFIIB, TBP, TFIIF, TFIIS) on a divergent promoter. 0 Saccharomyces cerevisiae subtomogramAveraging particle 0.1 7.6 20.0 C8H18N2O4S HEPES 80.0 CH3COOK Potassium Acetate 2.0 (CH3COO)2Mg Magnesium Acetate
20mM HEPES pH7.6, 2mM Magnesium Acetate, 80mM Potassium Acetate, 10nm gold beads
 Quantifoil R2/2 COPPER 200 GLOW DISCHARGE AIR ETHANE-PROPANE 65 298 LEICA EM CPC
Samples were chemically stabilized by fixation in glycerol gradients with increasing concentrations of glutaraldehyde (0-0.125%). Peak gradient fractions containing glutaraldhyde were quenched upon the addition of 50 mM glycine (pH 7.6) and 10nm gold beads were added before flash-freezing and storage under liquid nitrogen.
 FEI TITAN KRIOS SPOT SCAN BRIGHT FIELD FIELD EMISSION GUN 300 100.0 2.7 0.3 5.0 53000.0 FEI TITAN KRIOS AUTOGRID HOLDER NITROGEN GIF Bioquantum 20 GATAN K3 BIOQUANTUM (6k x 4k) 1.95 1 C1 BACK PROJECTION 36.0 FSC 0.143 CUT-OFF 819 55 819 IMOD PROJECTION MATCHING emd_28024.map.gz 1 IMAGE STORED AS FLOATING POINT NUMBER (4 BYTES) 180 180 180 0 0 0 180 180 180 603.36 603.36 603.36 90.0 90.0 90.0 X Y Z 0.00048828125 255.00024 104.49863 12.406478 3.352 3.352 3.352 140.0 AUTHOR Dimerized Mediator PIC with early GTFs on a divergent promoter emd_28024_half_map_1.map.gz 1 IMAGE STORED AS FLOATING POINT NUMBER (4 BYTES) 180 180 180 0 0 0 180 180 180 603.36 603.36 603.36 90.0 90.0 90.0 X Y Z 0.0 255.0 108.17454 14.089544 3.352 3.352 3.352 AUTHOR Half Map 1 emd_28024_half_map_2.map.gz 1 IMAGE STORED AS FLOATING POINT NUMBER (4 BYTES) 180 180 180 0 0 0 180 180 180 603.36 603.36 603.36 90.0 90.0 90.0 X Y Z 0.0 255.0 109.259575 13.535306 3.352 3.352 3.352 AUTHOR Half Map 2