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NITROGENASE MO-FE PROTEIN FROM KLEBSIELLA PNEUMONIAE, DITHIONITE-REDUCED STATE
Starting Model(s) Initial Refinement Model(s) Type Source Accession Code Details experimental model PDB 1MIN
Crystallization Crystalization Experiments ID Method pH Temperature Details 1 LIQUID DIFFUSION 8 CRYSTALLIZED ANAEROBICALLY USING LIQUID-LIQUID DIFFUSION TECHNIQUE. FINAL
CONCENTRATIONS AFTER EQUILIBRATION WERE: 7% (W/V) PEG 6000, 0.4 - 0.6 M MGCL2,
50 MM TRIS-HCL PH 8, 3.3 MG/ML PROTEIN., pH 8.0
PRIOR TO DATA COLLECTION THE CRYSTAL WAS INCUBATED FOR
24 HOURS IN CRYOPROTECTANT (MOTHER LIQUOR WITH
25% ETHYLENE GLYCOL) CONTAINING 10 MM SODIUM DITHIONITE
(A REDUCTANT).
Crystal Properties Matthews coefficient Solvent content 2.31 46
Crystal Data Unit Cell Length ( Å ) Angle ( ˚ ) a = 204.03 α = 90 b = 75.3 β = 122.61 c = 163.01 γ = 90
Symmetry Space Group C 1 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 100 IMAGE PLATE MARRESEARCH RH COATED SI MIRROR 1997-10-01 M SINGLE WAVELENGTH
Radiation Source ID # Source Type Wavelength List Synchrotron Site Beamline 1 SYNCHROTRON SRS BEAMLINE PX9.6 SRS PX9.6
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 1.6 50 95.9 0.06 22.4 4.1 260359 -3 14.8
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) 1.6 1.63 96.4 0.171 5.8
Refinement Statistics Diffraction ID Structure Solution Method Cross Validation method Starting model Resolution (High) Resolution (Low) Number Reflections (Observed) Number Reflections (R-Free) Percent Reflections (Observed) R-Work (Depositor) R-Work (DCC) R-Free (Depositor) R-Free Selection Details Mean Isotropic B X-RAY DIFFRACTION MOLECULAR REPLACEMENT THROUGHOUT 1MIN 1.6 50 260359 13095 95.9 0.156 0.1517 0.199 RANDOM 17.79
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 p_transverse_tor 34.5 p_staggered_tor 13.3 p_planar_tor 5.2 p_scangle_it 3.715 p_scbond_it 3.033 p_mcangle_it 2.124 p_mcbond_it 1.701 p_multtor_nbd 0.261 p_singtor_nbd 0.169 p_chiral_restr 0.118
RMS Deviations Key Refinement Restraint Deviation p_transverse_tor 34.5 p_staggered_tor 13.3 p_planar_tor 5.2 p_scangle_it 3.715 p_scbond_it 3.033 p_mcangle_it 2.124 p_mcbond_it 1.701 p_multtor_nbd 0.261 p_singtor_nbd 0.169 p_chiral_restr 0.118 p_xyhbond_nbd 0.112 p_planar_d 0.034 p_angle_d 0.028 p_plane_restr 0.0273 p_bond_d 0.014 p_angle_deg p_hb_or_metal_coord p_xhyhbond_nbd p_orthonormal_tor p_special_tor
Non-Hydrogen Atoms Used in Refinement Non-Hydrogen Atoms Number Protein Atoms 15528 Nucleic Acid Atoms Solvent Atoms 2736 Heterogen Atoms 198
Software Software Software Name Purpose AMoRE phasing REFMAC refinement DENZO data reduction SCALEPACK data scaling