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Crystal Structure of the primase fragment of Bacteriophage T7 primase-helicase protein
Crystallization Crystalization Experiments ID Method pH Temperature Details 1 VAPOR DIFFUSION, HANGING DROP 6.3 295 Sodium Formate, MES, DTT, ATP, pH 6.3, VAPOR DIFFUSION, HANGING DROP, temperature 295K
Crystal Properties Matthews coefficient Solvent content 4.34 71.41
Crystal Data Unit Cell Length ( Å ) Angle ( ˚ ) a = 136.459 α = 90 b = 136.46 β = 90 c = 85.445 γ = 120
Symmetry Space Group P 31 2 1
Diffraction Diffraction Experiment ID # Crystal ID Scattering Type Data Collection Temperature Detector Detector Type Details Collection Date Monochromator Protocol 1 1 x-ray 110 CCD ADSC QUANTUM 4 2002-07-05 M SINGLE WAVELENGTH
Radiation Source ID # Source Type Wavelength List Synchrotron Site Beamline 1 SYNCHROTRON CHESS BEAMLINE F1 0.9474, 0.9797, 0.9795, 0.9300, 1.5418 CHESS F1
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 2.6 65 98.6 0.065 14.7 28599 28599
Highest Resolution Shell ID # Resolution (High) Resolution (Low) Percent Possible (All) Percent Possible (Observed) R Merge I (Observed) Mean I Over Sigma (Observed) Redundancy Number Unique Reflections (All) 1 2.6 2.69 93.6 0.241
Refinement Statistics Diffraction ID Structure Solution Method Cross Validation method Resolution (High) Resolution (Low) Cut-off Sigma (F) Number Reflections (All) Number Reflections (Observed) Number Reflections (R-Free) Percent Reflections (Observed) 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 MAD THROUGHOUT 2.9 10 1 19053 19053 1029 99.82 0.23665 0.23452 0.2307 0.27674 0.2722 RANDOM 19.593
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] 2.1 1.05 2.1 -3.14
RMS Deviations Key Refinement Restraint Deviation r_scangle_it 5.324 r_scbond_it 3.191 r_mcangle_it 2.025 r_angle_refined_deg 1.464 r_dihedral_angle_1_deg 1.173 r_mcbond_it 1.037 r_symmetry_vdw_refined 0.368 r_nbd_refined 0.293 r_xyhbond_nbd_refined 0.204 r_chiral_restr 0.098
RMS Deviations Key Refinement Restraint Deviation r_scangle_it 5.324 r_scbond_it 3.191 r_mcangle_it 2.025 r_angle_refined_deg 1.464 r_dihedral_angle_1_deg 1.173 r_mcbond_it 1.037 r_symmetry_vdw_refined 0.368 r_nbd_refined 0.293 r_xyhbond_nbd_refined 0.204 r_chiral_restr 0.098 r_symmetry_hbond_refined 0.09 r_gen_planes_refined 0.009 r_bond_refined_d 0.008 r_bond_other_d r_angle_other_deg r_dihedral_angle_2_deg r_gen_planes_other r_nbd_other r_nbtor_other r_xyhbond_nbd_other r_symmetry_vdw_other r_symmetry_hbond_other r_rigid_bond_restr r_sphericity_free r_sphericity_bonded
Non-Hydrogen Atoms Used in Refinement Non-Hydrogen Atoms Number Protein Atoms 3763 Nucleic Acid Atoms Solvent Atoms 14 Heterogen Atoms 6
Software Software Software Name Purpose REFMAC refinement DENZO data reduction SCALEPACK data scaling MLPHARE phasing