X-RAY DIFFRACTION Experimental Data & Validation


X-ray Experimental Help

Crystallization

Crystalization Experiments
pH 7
Details CRYSTALLIZED BY BATCH METHODS FROM A SATURATED SOLUTION OF GRAMICIDIN D IN METHANOL., PH 7.0, BATCH METHOD

Crystal Data

Unit Cell
Length (Å) Angle (°)
a = 14.91 α = 90
b = 26.01 β = 92.03
c = 31.91 γ = 90
Symmetry
Space Group P 1 21 1

Diffraction

Diffraction Experiment
ID # Data Collection Temperature
1 120
Diffraction Detector
Detector Diffraction Type Details Collection Date
AREA DETECTOR ENRAF-NONIUS FAST COLLIMATOR 1990-01
Diffraction Radiation
Monochromator Protocol
GRAPHITE(002) --
Diffraction Detector Source
Source Type Wavelength List Synchrotron Site Beamline
ROTATING ANODE RIGAKU RUH2R -- -- --

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
1.25 100 99.9 -- -- -- 1.0 -- 7726 -- -3.0 --
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)
1.2 1.24 99.0 -- -- 35.53 1.0 --

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 1.2 100.0 -- 0.0 7726 -- 376 99.9 0.102 0.1 -- 0.168 5% OF REFLECTIONS IN THIN RESOLUTION SHELLS.
RMS Deviations
Key Refinement Restraint Deviation
s_similar_adp_cmpnt 0.033
s_approx_iso_adps 0.045
s_bond_d 0.014
s_non_zero_chiral_vol 0.119
s_from_restr_planes 0.326
s_angle_d 0.031
s_zero_chiral_vol 0.167
s_rigid_bond_adp_cmpnt 0.006
Coordinate Error
Parameter Value
Number Disordered Residues 5.0
Occupancy Sum Hydrogen 367.54
Occupancy Sum Non Hydrogen 315.41
Number of Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms Numbers
Protein Atoms 284
Nucleic Acid Atoms 0
Heterogen Atoms 40
Solvent Atoms 0

Software

Computing
Computing Package Purpose
ENRAF-NONIUS Data Reduction (intensity integration)
SHELXL-97 Structure Solution
SHELXL-97 Structure Refinement
Software
Software Name Purpose
SHELXL-97 model building
SHELXL-97 refinement