2YZ4

The neutron structure of concanavalin A at 2.2 Angstroms


NEUTRON DIFFRACTION

Crystallization

Crystalization Experiments
IDMethodpHTemperatureDetails
1BATCH DIALYSIS6.52930.1M NaNO3, 0.05M Tris-acetate, 1mM MnCl2, 1mM CaCl2, pH 6.5, BATCH DIALYSIS, temperature 293K

Crystal Data

Unit Cell
Length ( Å )Angle ( ˚ )
a = 89.377α = 90
b = 87.314β = 90
c = 63.051γ = 90
Symmetry
Space GroupI 2 2 2

Diffraction

Diffraction Experiment
ID #Crystal IDScattering TypeData Collection TemperatureDetectorDetector TypeDetailsCollection DateMonochromatorProtocol
11neutron293LADIIMAGE PLATE2005-06-01LLAUE
Radiation Source
ID #SourceTypeWavelength ListSynchrotron SiteBeamline
12.9-3.9

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
12.18133.65367.20.2130.2132.86.28512851222
Highest Resolution Shell
ID #Resolution (High)Resolution (Low)Percent Possible (All)Percent Possible (Observed)R Merge I (Observed)R-Sym I (Observed)Mean I Over Sigma (Observed)RedundancyNumber Unique Reflections (All)
12.22.3246.90.3140.3141.94861

Refinement

Statistics
Diffraction IDStructure Solution MethodCross Validation methodStarting modelResolution (High)Resolution (Low)Number Reflections (All)Number Reflections (Observed)Number Reflections (R-Free)Percent Reflections (Observed)R-Factor (All)R-Factor (Observed)R-WorkR-FreeR-Free Selection DetailsMean Isotropic B
NEUTRON DIFFRACTIONMOLECULAR REPLACEMENTTHROUGHOUTPDB ENTRY 1NLS2.233.648511851146666.10.2810.2810.2790.312RANDOM25.9
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]
9.283-13.9684.685
RMS Deviations
KeyRefinement Restraint Deviation
c_dihedral_angle_d19.3
c_improper_angle_d10.58
c_mcangle_it2.23
c_angle_deg2.2
c_scangle_it2.09
c_scbond_it1.36
c_mcbond_it1.34
c_bond_d0.015
Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen AtomsNumber
Protein Atoms1809
Nucleic Acid Atoms
Solvent Atoms84
Heterogen Atoms2

Software

Software
Software NamePurpose
SCALAdata scaling
CNSrefinement
PDB_EXTRACTdata extraction
LADIdata collection
LAUEGENdata reduction
LSCALEdata reduction
CNSphasing