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PHOTOLYSED CARBONMONOXY-MYOGLOBIN AT 20 K
Starting Model(s) Initial Refinement Model(s) Type Source Accession Code Details experimental model PDB 2MGK
Crystallization Crystalization Experiments ID Method pH Temperature Details 1 9 PROTEIN WAS CRYSTALLIZED FROM 3.6 M AMMONIUM SULFATE. CRYSTALS WER SOAKED FOR 1 HOUR IN A THOROUGHLY DEGASSED AND N2 - SATURATED CRYOPROTECTANT SOLUTION MADE BY ADDITION OF 100 MG SUCROSE, 100 MG GLUCOSE AND 8 MG NA-DITHIONATE TO 1 ML OF 70% SATURATED AMMONIUM SULFATE WITH 50 MM TRIS. HCL PH 9.0. THEN THE SOLUTION WAS EXCHANGED AGAINST A CO SATURATED ONE. DISTINCT COLOR CHANGES ACCOMPANIED THE FORMATION OF UNLIGATED MYOGLOBIN FROM MET-MB AND MBCO FROM UNLIGATED MB.
Crystal Properties Matthews coefficient Solvent content 3.08 60.12
Crystal Data Unit Cell Length ( Å ) Angle ( ˚ ) a = 90.42 α = 90 b = 90.42 β = 90 c = 45.4 γ = 120
Diffraction Diffraction Experiment ID # Crystal ID Scattering Type Data Collection Temperature Detector Detector Type Details Collection Date Monochromator Protocol 1 1 x-ray 20 IMAGE PLATE AREA DETECTOR MARRESEARCH YES 1994-03-18 M
Radiation Source ID # Source Type Wavelength List Synchrotron Site Beamline 1 SYNCHROTRON NSLS BEAMLINE X12C NSLS X12C
Data Collection Overall ID # Resolution (High) Resolution (Low) Percent Possible (Observed) R Merge I (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 1.5 90 0.063 0.068 3 30947
Highest Resolution Shell ID # Resolution (High) Resolution (Low) Percent Possible (All) Percent Possible (Observed) Mean I Over Sigma (Observed) Redundancy Number Unique Reflections (All) 1.5 1.7 78
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) Mean Isotropic B X-RAY DIFFRACTION DIFFERENCE FOURIER 2MGK 1.5 7 29798 89 0.207 0.207 0.206 6.4
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 x_angle_deg 1.7 x_bond_d 0.01 x_bond_d_na x_bond_d_prot x_angle_d x_angle_d_na x_angle_d_prot x_angle_deg_na x_angle_deg_prot x_dihedral_angle_d
RMS Deviations Key Refinement Restraint Deviation x_angle_deg 1.7 x_bond_d 0.01 x_bond_d_na x_bond_d_prot x_angle_d x_angle_d_na x_angle_d_prot x_angle_deg_na x_angle_deg_prot x_dihedral_angle_d x_dihedral_angle_d_na x_dihedral_angle_d_prot x_improper_angle_d x_improper_angle_d_na x_improper_angle_d_prot x_mcbond_it x_mcangle_it x_scbond_it x_scangle_it
Non-Hydrogen Atoms Used in Refinement Non-Hydrogen Atoms Number Protein Atoms 1225 Nucleic Acid Atoms Solvent Atoms 119 Heterogen Atoms 50
Software Software Software Name Purpose X-PLOR model building X-PLOR refinement DENZO data reduction SCALEPACK data scaling XSCALE data scaling X-PLOR phasing