3ULT

Crystal structure of an ice-binding protein from the perennial ryegrass, Lolium perenne


X-RAY DIFFRACTION

Crystallization

Crystalization Experiments
IDMethodpHTemperatureDetails
1VAPOR DIFFUSION, HANGING DROP4.227745-50% Ethanol, 100 mM Phosphate-citrate, 0-5% PEG 1000, pH 4.2, VAPOR DIFFUSION, HANGING DROP, temperature 277K
Crystal Properties
Matthews coefficientSolvent content
2.1943.91

Crystal Data

Unit Cell
Length ( Å )Angle ( ˚ )
a = 94.28α = 90
b = 62.49β = 113.96
c = 44γ = 90
Symmetry
Space GroupC 1 2 1

Diffraction

Diffraction Experiment
ID #Crystal IDScattering TypeData Collection TemperatureDetectorDetector TypeDetailsCollection DateMonochromatorProtocol
11x-ray100CCDADSC QUANTUM 2702009-02-14MSINGLE WAVELENGTH
Radiation Source
ID #SourceTypeWavelength ListSynchrotron SiteBeamline
1SYNCHROTRONNSLS BEAMLINE X6A1.13, 1.55NSLSX6A

Data Collection

Overall
ID #Resolution (High)Resolution (Low)Percent Possible (Observed)R Merge I (Observed)R Sym I (Observed)Net I Over Average Sigma (I)RedundancyNumber Reflections (All)Number Reflections (Observed)Observed Criterion Sigma (F)Observed Criterion Sigma (I)B (Isotropic) From Wilson Plot
11.42097.90.0760.05716.835.745098-3-317.982
Highest Resolution Shell
ID #Resolution (High)Resolution (Low)Percent Possible (All)Percent Possible (Observed)R Merge I (Observed)Mean I Over Sigma (Observed)RedundancyNumber Unique Reflections (All)
11.41.596.90.2935.48

Refinement

Statistics
Diffraction IDStructure Solution MethodResolution (High)Resolution (Low)Cut-off Sigma (F)Number Reflections (Observed)Number Reflections (R-Free)Percent Reflections (Observed)R-Factor (Observed)R-WorkR-FreeR-Free Selection DetailsMean Isotropic B
X-RAY DIFFRACTIONSIRAS1.419.423244891224297.70.16620.16510.1873Random17.308
Temperature Factor Modeling
Anisotropic B[1][1]Anisotropic B[1][2]Anisotropic B[1][3]Anisotropic B[2][2]Anisotropic B[2][3]Anisotropic B[3][3]
3.04653.1001-0.9361-2.1104
RMS Deviations
KeyRefinement Restraint Deviation
f_dihedral_angle_d10.678
f_angle_d1.422
f_chiral_restr0.085
f_bond_d0.011
f_plane_restr0.006
Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen AtomsNumber
Protein Atoms1586
Nucleic Acid Atoms
Solvent Atoms235
Heterogen Atoms41

Software

Software
Software NamePurpose
XSCALEdata scaling
SHARPphasing
PHENIXrefinement
PDB_EXTRACTdata extraction
Blu-Icedata collection
XDSdata reduction