X-RAY DIFFRACTION Experimental Data & Validation


X-ray Experimental Help

Crystallization

Crystalization Experiments
pH 7.5
Details PROTEIN WAS CRYSTALLIZED FROM 2 M SODIUM FORMATE AT PH 7.5 AT A PROTEIN CONCENTRATION OF 5 MG/ML; PROTEIN SOLUTION WAS QUARTZ-DISTILLED AND NO NUCLEOTIDES WERE ADDED.

Crystal Data

Unit Cell
Length (Å) Angle (°)
a = 73.51 α = 90
b = 145.69 β = 90
c = 172.28 γ = 90
Symmetry
Space Group P 21 21 21

Diffraction

Diffraction Experiment
ID # Data Collection Temperature
1 292
Diffraction Detector
Detector Diffraction Type Details Collection Date
IMAGE PLATE MARRESEARCH DUAL SLITS 1996-06
Diffraction Radiation
Monochromator Protocol
SI(111) --
Diffraction Detector Source
Source Type Wavelength List Synchrotron Site Beamline
SYNCHROTRON EMBL/DESY, HAMBURG BEAMLINE X11 -- EMBL/DESY, Hamburg X11

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
2.57 40 92.0 -- 0.091 -- 3.0 -- 54962 -- 0.0 --
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)
2.57 2.64 56.0 -- 0.266 2.0 1.4 --

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
MIR 2.57 40.0 -- 0.0 -- 54962 -- 92.0 -- -- 0.164 0.218 RANDOM
Number of Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms Numbers
Protein Atoms 8904
Nucleic Acid Atoms 0
Heterogen Atoms 96
Solvent Atoms 332

Software

Software
Software Name Purpose
MLPHARE phasing
GETAX model building
DM model building
REFMAC refinement
MOSFLM data reduction
CCP4 data scaling version: (SCALA)
GETAX phasing
DM phasing