X-RAY DIFFRACTION Experimental Data & Validation


X-ray Experimental Help

Crystallization

Crystalization Experiments
pH 6
Details PROTEIN WAS CRYSTALLIZED FROM AMMONIUM SULPHATE, 50MM POTASSIUM PHOSPHATE, PH 6.0

Crystal Data

Unit Cell
Length (Å) Angle (°)
a = 63.8 α = 90
b = 30.63 β = 105.8
c = 34.42 γ = 90
Symmetry
Space Group P 1 21 1

Diffraction

Diffraction Experiment
ID # Data Collection Temperature
1 100
Diffraction Detector
Detector Diffraction Type Details Collection Date
IMAGE PLATE AREA DETECTOR MARRESEARCH -- 1997-01
Diffraction Radiation
Monochromator Protocol
-- --
Diffraction Detector Source
Source Type Wavelength List Synchrotron Site Beamline
SYNCHROTRON NSLS BEAMLINE X12C -- NSLS X12C

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
1.15 50 91.0 -- 0.059 -- -- -- 42857 -- -- --
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)
1.15 1.2 63.0 -- 0.299 4.0 -- --

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 1.15 8.0 -- -- 41538 -- 2084 91.0 0.1284 0.1268 -- 0.1598 --
RMS Deviations
Key Refinement Restraint Deviation
s_approx_iso_adps 0.083
s_similar_adp_cmpnt 0.044
s_rigid_bond_adp_cmpnt 0.005
s_non_zero_chiral_vol 0.115
s_zero_chiral_vol 0.094
s_from_restr_planes 0.023
s_angle_d 0.033
s_bond_d 0.015
Coordinate Error
Parameter Value
Number Disordered Residues 26.0
Occupancy Sum Hydrogen 1263.1
Occupancy Sum Non Hydrogen 1415.9
Number of Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms Numbers
Protein Atoms 1204
Nucleic Acid Atoms 0
Heterogen Atoms 55
Solvent Atoms 184

Software

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