X-RAY DIFFRACTION Experimental Data & Validation


X-ray Experimental Help

Crystallization

Crystalization Experiments
Method Vapor Diffusion Sitting Drop
pH 5.5
Temperature 22.5
Details ammonium sulfate, pH 5.5, VAPOR DIFFUSION, SITTING DROP, temperature 22.5K

Crystal Data

Unit Cell
Length (Å) Angle (°)
a = 89.29 α = 90
b = 42.74 β = 104.55
c = 61.78 γ = 90
Symmetry
Space Group P 1 21 1

Diffraction

Diffraction Experiment
ID # Data Collection Temperature
1 97
Diffraction Detector
Detector Diffraction Type Details Collection Date
IMAGE PLATE MARRESEARCH -- 1998-02-15
Diffraction Radiation
Monochromator Protocol
-- SINGLE WAVELENGTH
Diffraction Detector Source
Source Type Wavelength List Synchrotron Site Beamline
SYNCHROTRON SSRL BEAMLINE BL9-1 -- SSRL BL9-1

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
1.04 35 96.0 0.071 -- -- 3.0 -- 207147 -- -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)
1.04 1.07 97.0 0.5 -- -- -- --

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 1.04 10.0 0.0 0.0 196530 -- 10359 91.0 -- 0.173 -- 0.209 RANDOM
RMS Deviations
Key Refinement Restraint Deviation
s_from_restr_planes 0.027
s_rigid_bond_adp_cmpnt 0.0
s_approx_iso_adps 0.0
s_bond_d 0.01
s_angle_d 0.03
s_zero_chiral_vol 0.08
s_non_zero_chiral_vol 0.09
s_anti_bump_dis_restr 0.09
s_similar_adp_cmpnt 0.05
s_similar_dist 0.0
Coordinate Error
Parameter Value
Occupancy Sum Hydrogen 3353.0
Occupancy Sum Non Hydrogen 3815.0
Number of Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms Numbers
Protein Atoms 3418
Nucleic Acid Atoms 0
Heterogen Atoms 10
Solvent Atoms 387

Software

Computing
Computing Package Purpose
MOSFLM Data Reduction (intensity integration)
CCP4 (SCALA) Data Reduction (data scaling)
REFINEMENT FROM 1.81A STRUCTURE 1GND Structure Solution
SHELXL-97 Structure Refinement
Software
Software Name Purpose
REFINEMENT version: FROM 1.81A STRUCTURE 1GND model building
SHELXL-97 refinement