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E.COLI METHIONINE AMINOPEPTIDASE AT 1.9 ANGSTROM RESOLUTION
Starting Model(s) Initial Refinement Model(s) Type Source Accession Code Details experimental model PDB 1MAT
Crystallization Crystalization Experiments ID Method pH Temperature Details 1 VAPOR DIFFUSION, HANGING DROP 7.1 CRYSTALS OF THE CO(II)-SUBSTITUTED ENZYME
WERE GROWN AT ROOM TEMPERATURE BY VAPOR
DIFFUSION IN 20-30 UL SITTING DROPS AFTER
MIXING THE PROTEIN, 12 MG/ML SOLUTION IN
STORAGE BUFFER(25 MM HEPES PH 6.8, 25 MM
K2SO4, 100 MM NACL, 1 MM COCL2, 15 MM
METHIONINE),CONTAINING 48.8 MM N-OCTANOYL
SUCROSE, 1:1 WITH WELL SOLUTIONS (24-26% PEG4000, 0.1M HEPES PH7.0-7.2,FRESH 2 MM COCL2)., pH 7.1, VAPOR DIFFUSION, HANGING DROP
Crystal Properties Matthews coefficient Solvent content 2.05 39.4
Crystal Data Unit Cell Length ( Å ) Angle ( ˚ ) a = 39.299 α = 90 b = 67.683 β = 111.24 c = 48.863 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 RIGAKU RAXIS IV 1998-04-10 M SINGLE WAVELENGTH
Radiation Source ID # Source Type Wavelength List Synchrotron Site Beamline 1 ROTATING ANODE RIGAKU RU200
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 1.9 35.5 100 0.077 22.7 5.1 18444 15.5
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) 1.9 1.97 100 0.251 6.1
Refinement Statistics Diffraction ID Structure Solution Method Starting model Resolution (High) Resolution (Low) Number Reflections (All) Number Reflections (Observed) Number Reflections (R-Free) Percent Reflections (Observed) R-Factor (All) R-Work (Depositor) R-Work (DCC) R-Free (Depositor) Mean Isotropic B X-RAY DIFFRACTION MOLECULAR REPLACEMENT 1MAT 1.9 35.5 18444 18444 100 0.155 0.1436
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 t_dihedral_angle_d 16.4 t_it 4.1 t_angle_deg 2.3 t_gen_planes 0.013 t_nbd 0.013 t_bond_d 0.012 t_trig_c_planes 0.008 t_incorr_chiral_ct t_pseud_angle
Non-Hydrogen Atoms Used in Refinement Non-Hydrogen Atoms Number Protein Atoms 1991 Nucleic Acid Atoms Solvent Atoms 96 Heterogen Atoms 4
Software Software Software Name Purpose AMoRE phasing TNT refinement DENZO data reduction SCALEPACK data scaling