1JW1

Crystallization and structure determination of goat lactoferrin at 4.0 resolution: A new form of packing in lactoferrins with a high solvent content in crystals


X-RAY DIFFRACTION Experimental Data & Validation


X-ray Experimental Help

Crystallization

Crystalization Experiments
Method Microdialysis
pH 8
Temperature 277.0
Details ethanol, pH 8.0, MICRODIALYSIS, temperature 277K

Crystal Data

Unit Cell
Length (Å) Angle (°)
a = 104.6 α = 90
b = 153.8 β = 90
c = 155.05 γ = 90
Symmetry
Space Group P 21 21 21

Diffraction

Diffraction Experiment
ID # Data Collection Temperature
1 298
Diffraction Detector
Detector Diffraction Type Details Collection Date
IMAGE PLATE MARRESEARCH -- 1998-03-18
Diffraction Radiation
Monochromator Protocol
graphite SINGLE WAVELENGTH
Diffraction Detector Source
Source Type Wavelength List Synchrotron Site Beamline
ROTATING ANODE RIGAKU RU200 -- -- --

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
-- -- -- -- -- -- -- -- 15870 -- -- --

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
-- 4.0 12.0 -- 0.0 -- 17327 841 83.0 -- -- 0.228 0.328 RANDOM
High Resolution Shell
Refinement method Shell Resolution (High) Shell Resolution (Low) # of Reflections (Observed) # of Reflections (R-Free) # of Reflections (R-Work) R-Factor (R-Work) R-Factor (R-Free) R-Factor (R-Free Error) Percent Reflections (Observed)
X Ray Diffraction 4.0 4.24 -- 124 2460 0.226 0.318 0.031 75.5
Temperature Factor Modeling
Temperature Factor Value
Mean Isotropic B 28.5
Anisotropic B[1][1] -0.96
Anisotropic B[1][2] 0.0
Anisotropic B[1][3] 0.0
Anisotropic B[2][2] 3.13
Anisotropic B[2][3] 0.0
Anisotropic B[3][3] -2.18
RMS Deviations
Key Refinement Restraint Deviation
c_improper_angle_d 2.49
c_bond_d 0.02
c_angle_deg 2.8
c_dihedral_angle_d 27.2
Coordinate Error
Parameter Value
Luzzati ESD (Observed) 0.79
Luzzati Sigma A (Observed) 0.27
Luzzati Resolution Cutoff (Low) 5.0
Luzzati ESD (R-Free Set) 0.84
Luzzati Sigma A (R-Free Set) 0.87
Number of Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms Numbers
Protein Atoms 5293
Nucleic Acid Atoms 0
Heterogen Atoms 2
Solvent Atoms 0

Software

Software
Software Name Purpose
DENZO data reduction
SCALEPACK data scaling
AMoRE phasing
CNS refinement version: 0.9