1QH1
NITROGENASE MOFE PROTEIN FROM KLEBSIELLA PNEUMONIAE, PHENOSAFRANIN OXIDIZED STATE
X-RAY DIFFRACTION
Starting Model(s)
Initial Refinement Model(s) | |||
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Type | Source | Accession Code | Details |
experimental model | PDB | 1MIN |
Crystallization
Crystalization Experiments | ||||
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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, temperature 100K PRIOR TO DATA COLLECTION THE CRYSTAL WAS INCUBATED FOR 5 HOURS IN CRYOPROTECTANT (MOTHER LIQUOR WITH 25% ETHYLENE GLYCOL) CONTAINING 2 MM PHENOSAFRANIN (AN OXIDANT). |
Crystal Properties | |
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Matthews coefficient | Solvent content |
2.31 | 46 |
Crystal Data
Unit Cell | |
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Length ( Å ) | Angle ( ˚ ) |
a = 204.18 | α = 90 |
b = 75.22 | β = 122.88 |
c = 162.84 | γ = 90 |
Symmetry | |
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Space Group | C 1 2 1 |
Diffraction
Diffraction Experiment | ||||||||||||||
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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 | |||||
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ID # | Source | Type | Wavelength List | Synchrotron Site | Beamline |
1 | SYNCHROTRON | SRS BEAMLINE PX9.6 | SRS | PX9.6 |
Data Collection
Overall | |||||||||||||||||||
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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 | 98.9 | 0.054 | 25.03 | 3.5 | 267995 | -3 | 17.18 |
Highest Resolution Shell | |||||||||||||||||||
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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 | 94.3 | 0.166 | 5.12 |
Refinement
Statistics | |||||||||||||||||||
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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 | 267995 | 13493 | 98.9 | 0.158 | 0.15 | 0.199 | RANDOM | 20.59 |
RMS Deviations | |
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Key | Refinement Restraint Deviation |
p_transverse_tor | 34.4 |
p_staggered_tor | 12.9 |
p_planar_tor | 5.2 |
p_scangle_it | 3.868 |
p_scbond_it | 3.165 |
p_mcangle_it | 2.122 |
p_mcbond_it | 1.729 |
p_multtor_nbd | 0.262 |
p_singtor_nbd | 0.17 |
p_chiral_restr | 0.121 |
Non-Hydrogen Atoms Used in Refinement | |
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Non-Hydrogen Atoms | Number |
Protein Atoms | 15528 |
Nucleic Acid Atoms | |
Solvent Atoms | 2589 |
Heterogen Atoms | 186 |
Software
Software | |
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Software Name | Purpose |
AMoRE | phasing |
REFMAC | refinement |
DENZO | data reduction |
SCALEPACK | data scaling |