Cryo-EM structure of RNase P RNA from Geobacillus stearothermophilus, conformer 17

2026-05-13 REL RCSB INITIAL_RELEASE REPOSITORY INITIAL_RELEASE REPOSITORY INITIAL_RELEASE REPOSITORY INITIAL_RELEASE REPOSITORY INITIAL_RELEASE REPOSITORY INITIAL_RELEASE REPOSITORY INITIAL_RELEASE REPOSITORY RCSB RCSB 2025-12-03 2026-05-13 2026-05-13 2026-05-13 National Institutes of Health/National Cancer Institute (NIH/NCI) ZIA BC 010379, ZIC BC 011535, ZIA BC 011669 United States Cryo-EM structure of RNase P RNA from Geobacillus stearothermophilus, conformer 17 Degenhardt MFS Stagno J Wang YX RNase P RNA, Geobacillus stearothermophilus, catalytic RNA, cryo-EM structure, conformational heterogeneity, RNA Degenhardt MFS Stagno J Wang YX Cryo-EM structure of RNase P RNA from Geobacillus stearothermophilus, conformer 17 To Be Published 0353 9zgz FULLOVERLAP EMDB EMD-74208 associated EM volume

ribonuclease P RNA ribonuclease P RNA 0 1 Geobacillus stearothermophilus 0.1355 RNase P RNA Geobacillus stearothermophilus 0.13530515599999998 1 GUUAAUCAUGCUCGGGUAAUCGCUGCGGCCGGUUUCGGCCGUAGAGGAAAGUCCAUGCUCGCACGGUGCUGAGAUGCCCG UAGUGUUCGUGCCUAGCGAAUCCAUAAGCUAGGGCAGCCUGGCUUUGGCUGGGCUGACGGCGGGGAAAGAACCUACGUCC GGCUGGGAUAUGGUUCGAUUACCCUGAAAGUGCCACAGUGACGGAGCUCUAAGGGAAACCUUAGAGGUGGAACGCGGUAA ACCCCACGAGCGAGAAACCCAAAUGAUGGUAGGGGCACCUUCCCGAAGGAAAUGAACGGAGGGAAGGACAGGCGGCGCAU GCAGCCUGUAGAUAGAUGAUUACCGCCGGAGUACGAGGCGCAAAGCCGCUUGCAGUACGAAGGUACAGAACAUGGCUUAU AGAGCAUGAUUAACGUC M19021.1 MAGNESIUM ION 2.4305e-05 41 MG water 1.8015e-05 1 HOH singleParticle particle 2.8 7.5 25.0 Tris-HCl Tris-HCl buffer 100.0 NaCl Sodium chloride 1.0 MgCl2 Magnesium chloride

25 mM Tris-HCl,pH 7.5, 100 mM NaCl, 1 mM MgCl2

Quantifoil R1.2/1.3 GOLD 300 CARBON HOLEY 200.0 GLOW DISCHARGE 60 AIR 0.02

Glow-discharged Quantifoil R1.2/1.3 Au 300 mesh grids prepared on a Vitrobot. Grids were glow-discharged on both sides for 60 s at 25 mA prior to sample application. Sample concentration was 2.7 mg/mL. A 10 s wait time and 3 s blot with force 3 to 10 at 277K were used during vitrification.

ETHANE 90 277 FEI VITROBOT MARK IV

Grids were glow-discharged on both sides prior to vitrification. Vitrification was performed using a Vitrobot Mark IV with a 10s wait time, followed by a 3s blot and blot force 3 to 10.

The specimen consisted of monomeric RNase P RNA from Geobacillus stearothermophilus purified and prepared in buffer containing 1 mM Magnesium. Samples were applied directly to cryo-EM grids for vitrification

TFS KRIOS FLOOD BEAM BRIGHT FIELD FIELD EMISSION GUN 300 0.5 2.0 TFS Selectris X 10 EPU 3.1 Automated EPU data collection was guided by ice-filter criteria, with manual selection of squares exhibiting uniform ice and no visible contamination. FEI FALCON IV (4k x 4k) 5 78777 2.5 53.0 1 21475910

An iterative particle-cleaning workflow was applied, combining 2D classification and heterogeneous refinement with decoy classes to achieve exhaustive particle selection.

cryoSPARC 4.6 PHASE FLIPPING AND AMPLITUDE CORRECTION 9OV3 2.9 FSC 0.143 CUT-OFF cryoSPARC 4.6 83319 PROJECTION MATCHING cryoSPARC 4.6 emd_74208.map.gz 1 IMAGE STORED AS FLOATING POINT NUMBER (4 BYTES) 480 480 480 0 0 0 480 480 480 351.36 351.36 351.36 90.0 90.0 90.0 X Y Z -0.18462126 0.5218372 -0.00022892447 0.007513125 0.732 0.732 0.732 0.02 AUTHOR ::::EMDATABANK.org::::EMD-74208:::: 9OV3 A 1-417 PDB experimental model FLEXIBLE FIT maximization of map-to-model correlation REAL emd_74208_half_map_1.map.gz 1 IMAGE STORED AS FLOATING POINT NUMBER (4 BYTES) 480 480 480 0 0 0 480 480 480 351.36 351.36 351.36 90.0 90.0 90.0 X Y Z -0.42727083 0.8287461 0.00007205825 0.040721435 0.732 0.732 0.732 AUTHOR ::::EMDATABANK.org::::EMD-74208:::: emd_74208_half_map_2.map.gz 1 IMAGE STORED AS FLOATING POINT NUMBER (4 BYTES) 480 480 480 0 0 0 480 480 480 351.36 351.36 351.36 90.0 90.0 90.0 X Y Z -0.44839966 0.7939812 0.000069606314 0.040855836 0.732 0.732 0.732 AUTHOR ::::EMDATABANK.org::::EMD-74208::::