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Crystal Structure of the two MBT repeats from Sex-Comb on Midleg (SCM)
Starting Model(s) Initial Refinement Model(s) Type Source Accession Code Details experimental model PDB 2BIV PDB entry 2BIV
Crystallization Crystalization Experiments ID Method pH Temperature Details 1 VAPOR DIFFUSION 7.3 293 15% (w/v) PEG3350, 100 mM calcium acetate and 3% ethanol, pH 7.3, VAPOR DIFFUSION, temperature 293K
Crystal Properties Matthews coefficient Solvent content 2.23 44.8
Crystal Data Unit Cell Length ( Å ) Angle ( ˚ ) a = 83.23 α = 90 b = 83.23 β = 90 c = 75.657 γ = 90
Symmetry Space Group P 43 21 2
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 ADSC QUANTUM 315 2006-04-01 M SINGLE WAVELENGTH
Radiation Source ID # Source Type Wavelength List Synchrotron Site Beamline 1 SYNCHROTRON ESRF BEAMLINE ID29 0.934 ESRF ID29
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 2.2 20 98.9 0.0485 6.8 9.7 13656 1 1
Highest Resolution Shell ID # Resolution (High) Resolution (Low) Percent Possible (All) Percent Possible (Observed) R-Sym I (Observed) Mean I Over Sigma (Observed) Redundancy Number Unique Reflections (All) 1 2.2 2.3 0.279 1.4 9.6 1580
Refinement Statistics Diffraction ID Structure Solution Method Cross Validation method Starting model Resolution (High) Resolution (Low) Number Reflections (All) Number Reflections (Observed) 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 MOLECULAR REPLACEMENT THROUGHOUT PDB entry 2BIV 2.2 8 13656 13155 403 99.16 0.18935 0.18935 0.18837 0.1839 0.22521 0.222 RANDOM 43.002
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] 0.55 0.55 -1.1
RMS Deviations Key Refinement Restraint Deviation r_dihedral_angle_2_deg 31.391 r_dihedral_angle_4_deg 18.025 r_dihedral_angle_3_deg 14.611 r_dihedral_angle_1_deg 5.644 r_scangle_it 1.782 r_scbond_it 1.245 r_angle_refined_deg 1.163 r_mcangle_it 0.778 r_mcbond_it 0.474 r_nbtor_refined 0.301
RMS Deviations Key Refinement Restraint Deviation r_dihedral_angle_2_deg 31.391 r_dihedral_angle_4_deg 18.025 r_dihedral_angle_3_deg 14.611 r_dihedral_angle_1_deg 5.644 r_scangle_it 1.782 r_scbond_it 1.245 r_angle_refined_deg 1.163 r_mcangle_it 0.778 r_mcbond_it 0.474 r_nbtor_refined 0.301 r_nbd_refined 0.185 r_symmetry_vdw_refined 0.174 r_xyhbond_nbd_refined 0.143 r_symmetry_hbond_refined 0.134 r_chiral_restr 0.081 r_bond_refined_d 0.009 r_gen_planes_refined 0.003
Non-Hydrogen Atoms Used in Refinement Non-Hydrogen Atoms Number Protein Atoms 1642 Nucleic Acid Atoms Solvent Atoms 172 Heterogen Atoms
Software Software Software Name Purpose REFMAC refinement DNA data collection XDS data reduction XSCALE data scaling PHASER phasing