X-RAY DIFFRACTION Experimental Data & Validation


X-ray Experimental Help

Crystallization

Crystalization Experiments
pH 5.3
Details 2M AMMONIUM SULPHATE, 40 MM TRI 180 MM KCL, pH 5.3

Crystal Data

Unit Cell
Length (Å) Angle (°)
a = 37.68 α = 90
b = 41.67 β = 90
c = 41.91 γ = 90
Symmetry
Space Group P 21 21 21

Diffraction

Diffraction Experiment
ID # Data Collection Temperature
1 100
Diffraction Detector
Detector Diffraction Type Details Collection Date
IMAGE PLATE MARRESEARCH BENT CRYSTAL 1996-09-24
Diffraction Radiation
Monochromator Protocol
GE SINGLE CRYSTAL SINGLE WAVELENGTH
Diffraction Detector Source
Source Type Wavelength List Synchrotron Site Beamline
SYNCHROTRON EMBL/DESY, HAMBURG BEAMLINE X11 -- EMBL/DESY, HAMBURG X11

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
0.93 20 93.0 0.073 -- -- 10.1 -- 39854 -- 0.0 --
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)
0.93 0.95 88.9 0.34 -- 3.1 3.4 --

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
DIRECT METHODS 0.93 20.0 -- 0.0 41951 -- 2097 93.0 0.1548 0.1529 -- 0.2046 RANDOM
RMS Deviations
Key Refinement Restraint Deviation
s_approx_iso_adps 0.077
s_similar_adp_cmpnt 0.033
s_rigid_bond_adp_cmpnt 0.005
s_anti_bump_dis_restr 0.064
s_zero_chiral_vol 0.116
s_from_restr_planes 0.029
s_angle_d 0.034
s_bond_d 0.014
Coordinate Error
Parameter Value
Number Disordered Residues 37.0
Occupancy Sum Hydrogen 594.0
Occupancy Sum Non Hydrogen 800.0
Number of Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms Numbers
Protein Atoms 623
Nucleic Acid Atoms 0
Heterogen Atoms 8
Solvent Atoms 206

Software

Computing
Computing Package Purpose
DENZO Data Reduction (intensity integration)
SCALEPACK Data Reduction (data scaling)
SHELX Structure Solution
SHELXL-97 Structure Refinement
Software
Software Name Purpose
SHELXL-97 refinement
SHELX model building