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A 1.3 A RESOLUTION CRYSTAL STRUCTURE OF THE HIV-1 TRANS-ACTIVATION RESPONSE REGION RNA STEM REVEALS A METAL ION-DEPENDENT BULGE CONFORMATION
Crystallization Crystalization Experiments ID Method pH Temperature Details 1 VAPOR DIFFUSION, HANGING DROP 6 292 pH 6.00, VAPOR DIFFUSION, HANGING DROP, temperature 292.00K
Crystal Properties Matthews coefficient Solvent content 2.25 45.24
Crystal Data Unit Cell Length ( Å ) Angle ( ˚ ) a = 27.1 α = 69.2 b = 27.1 β = 77.5 c = 31.6 γ = 63
Diffraction Diffraction Experiment ID # Crystal ID Scattering Type Data Collection Temperature Detector Detector Type Details Collection Date Monochromator Protocol 1 1 x-ray 100 CCD PRINCETON 2K 1997-05-01 2 1 x-ray IMAGE PLATE RIGAKU RAXIS IV
Radiation Source ID # Source Type Wavelength List Synchrotron Site Beamline 1 SYNCHROTRON CHESS BEAMLINE A1 CHESS A1 2 ROTATING ANODE RIGAKU RU300
Data Collection Overall ID # Resolution (High) Resolution (Low) Percent Possible (Observed) R Merge I (Observed) Net I Over Average Sigma (I) Redundancy Number Reflections (All) Number Reflections (Observed) Observed Criterion Sigma (F) Observed Criterion Sigma (I) B (Isotropic) From Wilson Plot 1,2 1.3 20 95 0.06 4.8 17465 -3
Refinement Statistics Diffraction ID Structure Solution Method Cross Validation method Resolution (High) Resolution (Low) Number Reflections (All) Number Reflections (R-Free) Percent Reflections (Observed) R-Factor (All) R-Factor (Observed) R-Work (Depositor) R-Work (DCC) R-Free (Depositor) R-Free (DCC) R-Free Selection Details Mean Isotropic B X-RAY DIFFRACTION R FREE 1.3 20 17465 1731 85 0.131 0.126 0.1329 0.177 0.1801 RANDOM
Temperature Factor Modeling Anisotropic B[1][1] Anisotropic B[1][2] Anisotropic B[1][3] Anisotropic B[2][2] Anisotropic B[2][3] Anisotropic B[3][3]
RMS Deviations Key Refinement Restraint Deviation s_angle_d 0.025 s_bond_d 0.009 s_similar_dist s_from_restr_planes s_zero_chiral_vol s_non_zero_chiral_vol s_anti_bump_dis_restr s_rigid_bond_adp_cmpnt s_similar_adp_cmpnt s_approx_iso_adps
Non-Hydrogen Atoms Used in Refinement Non-Hydrogen Atoms Number Protein Atoms Nucleic Acid Atoms 567 Solvent Atoms 178 Heterogen Atoms 4
Software Software Software Name Purpose SHELXL-97 refinement DENZO data reduction SCALEPACK data scaling