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an engineered streptavidin with improved affinity for the strep-tag II peptide : SAm1-StrepII
Starting Model(s) Initial Refinement Model(s) Type Source Accession Code Details experimental model PDB 1SWU
Crystallization Crystalization Experiments ID Method pH Temperature Details 1 VAPOR DIFFUSION, HANGING DROP 6.9 293 100 mM Na2HPO4, 1.3-M (NH4)2SO4, pH 6.9, VAPOR DIFFUSION, HANGING DROP, temperature 293K
Crystal Properties Matthews coefficient Solvent content 2.2 44
Crystal Data Unit Cell Length ( Å ) Angle ( ˚ ) a = 58.699 α = 90 b = 86.339 β = 98.92 c = 47.448 γ = 90
Symmetry Space Group P 1 21 1
Diffraction Diffraction Experiment ID # Crystal ID Scattering Type Data Collection Temperature Detector Detector Type Details Collection Date Monochromator Protocol 1 1 x-ray 298 IMAGE PLATE MARRESEARCH OSMIC MIRRORS 2001-07-21 M SINGLE WAVELENGTH
Radiation Source ID # Source Type Wavelength List Synchrotron Site Beamline 1 ROTATING ANODE RIGAKU RU300
Data Collection Overall ID # Resolution (High) Resolution (Low) Percent Possible (Observed) R Sym 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 1.7 36 94.8 0.04 23.8 2.6 49002 -3
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) 1.7 1.76 90.3 0.348 3.2 2.38 4648
Refinement Statistics Diffraction ID Structure Solution Method Starting model Resolution (High) Resolution (Low) 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 FOURIER SYNTHESIS 1SWU 1.7 36 46287 2430 94.84 0.1768 0.1746 0.1903 0.2169 0.2308 RANDOM 25.447
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] -0.42 0.16 0.16 0.31
RMS Deviations Key Refinement Restraint Deviation p_angle_d 2.773 p_bond_d 0.018 p_angle_deg p_planar_d p_hb_or_metal_coord p_mcbond_it p_mcangle_it p_scbond_it p_scangle_it p_plane_restr
RMS Deviations Key Refinement Restraint Deviation p_angle_d 2.773 p_bond_d 0.018 p_angle_deg p_planar_d p_hb_or_metal_coord p_mcbond_it p_mcangle_it p_scbond_it p_scangle_it p_plane_restr p_chiral_restr p_singtor_nbd p_multtor_nbd p_xhyhbond_nbd p_xyhbond_nbd p_planar_tor p_staggered_tor p_orthonormal_tor p_transverse_tor p_special_tor
Non-Hydrogen Atoms Used in Refinement Non-Hydrogen Atoms Number Protein Atoms 3816 Nucleic Acid Atoms Solvent Atoms 238 Heterogen Atoms
Software Software Software Name Purpose CNS refinement REFMAC refinement DENZO data reduction SCALEPACK data scaling CNS phasing