X-RAY DIFFRACTION Experimental Data & Validation


X-ray Experimental Help

Crystallization

Crystalization Experiments
pH 8
Details PROTEIN WAS CRYSTALLIZED FROM 60% PEG400, 50 MM CHESS, PH 8.0, 1% BETA-OCTYL GLUCOSIDE, 0.6% 1,2,3-HEPTANETRIOL.

Crystal Data

Unit Cell
Length (Å) Angle (°)
a = 127.58 α = 90
b = 121.08 β = 90
c = 26.86 γ = 90
Symmetry
Space Group C 2 2 2

Diffraction

Diffraction Experiment
ID # Data Collection Temperature
1 290
Diffraction Detector
Detector Diffraction Type Details Collection Date
IMAGE PLATE MARRESEARCH BENT MIRROR 1993-05
Diffraction Radiation
Monochromator Protocol
SI(111) --
Diffraction Detector Source
Source Type Wavelength List Synchrotron Site Beamline
SYNCHROTRON SSRL BEAMLINE BL7-1 -- SSRL BL7-1

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
2.6 24 95.0 -- 0.081 -- 4.0 -- 6494 -- 2.0 --
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)
2.6 2.78 80.2 -- 0.307 2.3 4.2 --

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
MIR 2.6 10.0 -- 2.0 -- 6565 -- 95.0 -- 0.194 0.194 -- --
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 2.6 2.72 -- -- 723 0.324 -- -- --
Temperature Factor Modeling
Temperature Factor Value
Isotropic Thermal Model RESTRAINED
Mean Isotropic B 30.0
Anisotropic B[1][1] -4.25
Anisotropic B[1][2] 0.0
Anisotropic B[1][3] 0.0
Anisotropic B[2][2] 8.25
Anisotropic B[2][3] 0.0
Anisotropic B[3][3] -4.0
RMS Deviations
Key Refinement Restraint Deviation
x_improper_angle_d 1.359
x_bond_d 0.017
x_angle_deg 3.5
Coordinate Error
Parameter Value
Luzzati Resolution Cutoff (Low) 10.0
Number of Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms Numbers
Protein Atoms 1208
Nucleic Acid Atoms 0
Heterogen Atoms 36
Solvent Atoms 129

Software

Software
Software Name Purpose
MOSFLM data reduction
ROTAVATA data reduction
AGROVATA data reduction
X-PLOR model building version: 3.1
X-PLOR refinement version: 3.1
CCP4 data scaling version: (AGROVATA
ROTAVATA) data scaling
X-PLOR phasing version: 3.1