X-RAY DIFFRACTION Experimental Data & Validation


X-ray Experimental Help

Crystallization

Crystalization Experiments
pH 7.4
Details PROTEIN WAS CRYSTALLIZED FROM 18% PEG 4000, 10% ISOPROPANOL, 100 MM HEPES, PH 7.4.

Crystal Data

Unit Cell
Length (Å) Angle (°)
a = 56.5 α = 90
b = 65.3 β = 90
c = 132.6 γ = 90
Symmetry
Space Group P 21 21 21

Diffraction

Diffraction Experiment
ID # Data Collection Temperature
1 97
Diffraction Detector
Detector Diffraction Type Details Collection Date
IMAGE PLATE MARRESEARCH PT COATED FUSED SILICA X-RAY MIRROR 1996-05
Diffraction Radiation
Monochromator Protocol
SI(111) --
Diffraction Detector Source
Source Type Wavelength List Synchrotron Site Beamline
SYNCHROTRON SSRL BEAMLINE BL7-1 -- SSRL BL7-1

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
2.15 40 96.1 -- 0.065 -- 10.0 -- 26432 -- -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)
2.15 2.23 95.0 -- 0.302 5.6 3.4 --

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 2.15 10.0 -- 0.0 26080 -- 1304 96.1 0.2144 0.2108 -- 0.3167 EVERY 20TH REFLECTION
RMS Deviations
Key Refinement Restraint Deviation
s_approx_iso_adps 0.0
s_similar_adp_cmpnt 0.068
s_rigid_bond_adp_cmpnt 0.0
s_anti_bump_dis_restr 0.015
s_non_zero_chiral_vol 0.082
s_zero_chiral_vol 0.088
s_from_restr_planes 0.324
s_similar_dist 0.0
s_angle_d 0.021
s_bond_d 0.005
Coordinate Error
Parameter Value
Number Disordered Residues 0.0
Occupancy Sum Hydrogen 3233.0
Occupancy Sum Non Hydrogen 3556.0
Number of Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms Numbers
Protein Atoms 3350
Nucleic Acid Atoms 0
Heterogen Atoms 0
Solvent Atoms 248

Software

Computing
Computing Package Purpose
DENZO Data Reduction (intensity integration)
SCALEPACK Data Reduction (data scaling)
AMORE, MERLOT Structure Solution
SHELXL-96 Structure Refinement
Software
Software Name Purpose
SHELXL-96 refinement
MERLOT model building
AMORE model building
SCALEPACK data reduction
DENZO data collection