X-RAY DIFFRACTION Experimental Data & Validation


X-ray Experimental Help

Crystallization

Crystalization Experiments
pH 6.1
Details PROTEIN CONCENTRATION 6 MGS/ML. 0.10 ML OF 0.5M MES-NAOH, PH 6.1, 0.51 ML OF 40% (W/V) PEG 8K, 0.10 ML OF 2M AMMONIUM ACETATE, 0.29 ML OF WATER, AT ROOM-TEMPERATURE.

Crystal Data

Unit Cell
Length (Å) Angle (°)
a = 39 α = 66.7
b = 48.5 β = 74.9
c = 54.5 γ = 77.5
Symmetry
Space Group P 1

Diffraction

Diffraction Experiment
ID # Data Collection Temperature
1 293
Diffraction Detector
Detector Diffraction Type Details Collection Date
IMAGE PLATE MARRESEARCH MIRRORS 1996-08
Diffraction Radiation
Monochromator Protocol
GE(111) --
Diffraction Detector Source
Source Type Wavelength List Synchrotron Site Beamline
SYNCHROTRON SRS BEAMLINE PX9.6 -- SRS PX9.6

Data Collection

Overall
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
2.78 26.88 81.8 0.071 -- -- 1.9 -- 7225 -- -- 21.9
High Resolution Shell
Resolution (High) Resolution (Low) Percent Possible (All) R Merge I (Observed) R-Sym I (Observed) Mean I Over Sigma (Observed) Redundancy Number Unique Reflections (All)
2.78 2.88 81.9 0.081 -- 7.7 1.6 --

Refinement

Statistics
Structure Solution Method Refinement High Resolution Refinement Low Resolution Cut-off Sigma (I) Cut-off Sigma (F) Number of Reflections (All) Number of Reflections (Observed) Number of Reflections (R-Free) Percent Reflections (Observed) R-Factor (All) R-Factor (Observed) R-Work R-Free R-Free Selection Details
MOLECULAR REPLACEMENT 2.78 26.88 -- -- -- 7224 394 81.1 -- 0.19 0.19 0.278 RANDOM
High Resolution Shell
Refinement method Shell Resolution (High) Shell Resolution (Low) # of Reflections (Observed) # of Reflections (R-Free) # of Reflections (R-Work) R-Factor (R-Work) R-Factor (R-Free) R-Factor (R-Free Error) Percent Reflections (Observed)
X Ray Diffraction 2.78 2.91 -- 44 861 0.251 0.409 -- 81.9
Temperature Factor Modeling
Temperature Factor Value
Isotropic Thermal Model RESTRAINT INDIVIDUALS
Mean Isotropic B 29.0
RMS Deviations
Key Refinement Restraint Deviation
x_dihedral_angle_d 26.83
x_bond_d 0.01
x_improper_angle_d 1.485
x_angle_deg 1.534
Coordinate Error
Parameter Value
Luzzati Resolution Cutoff (Low) 26.8
Number of Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms Numbers
Protein Atoms 2795
Nucleic Acid Atoms 0
Heterogen Atoms 0
Solvent Atoms 22

Software

Computing
Computing Package Purpose
DENZO Data Reduction (intensity integration)
CCP4 (AGROVATA, ROTAVATA) Data Reduction (data scaling)
X-PLOR Structure Solution
X-PLOR Structure Refinement
Software
Software Name Purpose
X-PLOR refinement
X-PLOR model building