X-RAY DIFFRACTION

Starting Model(s)

Initial Refinement Model(s)
TypeSourceAccession CodeDetails
experimental modelPDB 2NXCpdb entries 2NXC, 2NXN
experimental modelPDB 2NXNpdb entries 2NXC, 2NXN

Crystallization

Crystalization Experiments
IDMethodpHTemperatureDetails
1microbatch under oil5.8277200mM magnesium nitrate hexahydrate, 20% w/v PEG3350, 4mM AdoMet, pH 5.8, microbatch under oil, temperature 277K
Crystal Properties
Matthews coefficientSolvent content
2.6854.15

Crystal Data

Unit Cell
Length ( Å )Angle ( ˚ )
a = 69.822α = 90
b = 69.943β = 90.47
c = 379.007γ = 90
Symmetry
Space GroupP 1 2 1

Diffraction

Diffraction Experiment
ID #Crystal IDScattering TypeData Collection TemperatureDetectorDetector TypeDetailsCollection DateMonochromatorProtocol
11x-ray100CCDADSC QUANTUM 315Rosenbaum-Rock double crystal sagittal focusing monochrometer and vertical focusing mirror2007-06-15MSINGLE WAVELENGTH
Radiation Source
ID #SourceTypeWavelength ListSynchrotron SiteBeamline
1SYNCHROTRONNSLS BEAMLINE X29A0.9797NSLSX29A

Data Collection

Overall
ID #Resolution (High)Resolution (Low)Percent Possible (Observed)R Merge 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
12.33096.50.071256.7157914-3
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)
12.32.3876.70.3642.74.612404

Refinement

Statistics
Diffraction IDStructure Solution MethodCross Validation methodStarting modelResolution (High)Resolution (Low)Number Reflections (Observed)Number Reflections (R-Free)Percent Reflections (Observed)R-Factor (Observed)R-WorkR-FreeR-Free Selection DetailsMean Isotropic B
X-RAY DIFFRACTIONMOLECULAR REPLACEMENTTHROUGHOUTpdb entries 2NXC, 2NXN2.329.74149975790996.310.197650.194420.2593RANDOM44.08
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]
0.01-0.01-0.01
RMS Deviations
KeyRefinement Restraint Deviation
r_dihedral_angle_2_deg33.514
r_dihedral_angle_4_deg20.195
r_dihedral_angle_3_deg17.687
r_dihedral_angle_1_deg6.326
r_scangle_it2.802
r_scbond_it1.715
r_angle_refined_deg1.538
r_mcangle_it1.071
r_mcbond_it0.647
r_nbtor_refined0.301
RMS Deviations
KeyRefinement Restraint Deviation
r_dihedral_angle_2_deg33.514
r_dihedral_angle_4_deg20.195
r_dihedral_angle_3_deg17.687
r_dihedral_angle_1_deg6.326
r_scangle_it2.802
r_scbond_it1.715
r_angle_refined_deg1.538
r_mcangle_it1.071
r_mcbond_it0.647
r_nbtor_refined0.301
r_symmetry_vdw_refined0.247
r_xyhbond_nbd_refined0.243
r_nbd_refined0.214
r_symmetry_hbond_refined0.211
r_chiral_restr0.095
r_bond_refined_d0.014
r_gen_planes_refined0.005
r_bond_other_d
r_angle_other_deg
r_gen_planes_other
r_nbd_other
r_nbtor_other
r_xyhbond_nbd_other
r_metal_ion_refined
r_metal_ion_other
r_symmetry_vdw_other
r_symmetry_hbond_other
r_symmetry_metal_ion_refined
r_symmetry_metal_ion_other
r_mcbond_other
r_rigid_bond_restr
r_sphericity_free
r_sphericity_bonded
Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen AtomsNumber
Protein Atoms21338
Nucleic Acid Atoms
Solvent Atoms1885
Heterogen Atoms296

Software

Software
Software NamePurpose
REFMACrefinement
ADSCdata collection
DENZOdata reduction
SCALEPACKdata scaling
PHASERphasing