X-RAY DIFFRACTION Experimental Data & Validation


X-ray Experimental Help

Crystallization

Crystalization Experiments
pH 8.2
Details SYNTHETIC MOTHER LIQUOR = 75% SATURATED MAGNESIUM SULFATE, 25 % 1.0 M TRIS ADJUSTED TO PH 8.2; SATURATED IN KETO-BABIM, 5.0 MM ZN+2. COMPLEX PRODUCED BY SOAKING TRYPSIN-BENZAMIDINE CO-CRYSTAL.

Crystal Data

Unit Cell
Length (Å) Angle (°)
a = 55.06 α = 90
b = 55.06 β = 90
c = 109.85 γ = 120
Symmetry
Space Group P 31 2 1

Diffraction

Diffraction Detector
Detector Diffraction Type Details Collection Date
AREA DETECTOR SIEMENS -- --
Diffraction Radiation
Monochromator Protocol
-- --
Diffraction Detector Source
Source Type Wavelength List Synchrotron Site Beamline
-- -- -- -- --

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
-- -- 80.7 0.081 -- -- 4.1 -- 13575 -- 0.5 --
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)
1.92 2.01 41.2 -- -- -- -- --

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
-- 1.92 -- -- 2.0 -- 12502 -- -- -- 0.144 0.144 0.171 --
RMS Deviations
Key Refinement Restraint Deviation
x_improper_angle_d 26.8
x_bond_d 0.016
x_angle_deg 3.1
Number of Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms Numbers
Protein Atoms 1629
Nucleic Acid Atoms 0
Heterogen Atoms 33
Solvent Atoms 143

Software

Computing
Computing Package Purpose
SADIE, SAINT (SIEMENS) Data Reduction (intensity integration)
X-PLOR Structure Solution
X-PLOR Structure Refinement
Software
Software Name Purpose
X-PLOR refinement
X-PLOR model building
SAINT version: (SIEMENS) data collection
SADIE data collection