X-RAY DIFFRACTION Experimental Data & Validation


X-ray Experimental Help

Crystallization

Crystalization Experiments
Method Vapor Diffusion Hanging Drop
pH 9
Temperature 293.0
Details 5 mg/ml enzyme, 50mM Tris, 50mM cacodylate, 1mM CdSo4, 2-10% PEG 35000, equilibrated against a NaCl solution, pH 9.0, VAPOR DIFFUSION, HANGING DROP, temperature 293K

Crystal Data

Unit Cell
Length (Å) Angle (°)
a = 91.99 α = 90
b = 42.69 β = 106.06
c = 62.5 γ = 90
Symmetry
Space Group C 1 2 1

Diffraction

Diffraction Experiment
ID # Data Collection Temperature
1 100
Diffraction Detector
Detector Diffraction Type Details Collection Date
CCD BRANDEIS -- 1998-06-06
Diffraction Radiation
Monochromator Protocol
-- SINGLE WAVELENGTH
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
1.2 20 93.6 0.047 -- -- 2.0 -- 68270 -- -- 9.9
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 76.1 0.274 -- -- 1.6 5515

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
AB INITIO 1.2 10.0 -- 0.0 64700 -- 3485 88.9 0.157 0.159 -- 0.191 freerflag (CCP4)
RMS Deviations
Key Refinement Restraint Deviation
s_from_restr_planes 0.028
s_non_zero_chiral_vol 0.07
s_angle_d 0.031
s_similar_dist 0.0
s_approx_iso_adps 0.08
s_similar_adp_cmpnt 0.04
s_zero_chiral_vol 0.07
s_rigid_bond_adp_cmpnt 0.0
s_bond_d 0.012
s_anti_bump_dis_restr 0.01
Coordinate Error
Parameter Value
Occupancy Sum Hydrogen 0.0
Occupancy Sum Non Hydrogen 1876.0
Number of Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms Numbers
Protein Atoms 1684
Nucleic Acid Atoms 0
Heterogen Atoms 1
Solvent Atoms 192

Software

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