4NCM

Influenza polymerase basic protein 2 (PB2) bound to a small-molecule inhibitor


X-RAY DIFFRACTION

Starting Model(s)

Initial Refinement Model(s)
TypeSourceAccession CodeDetails
experimental modelPDB 4NCEPDB ENTRY 4NCE

Crystallization

Crystalization Experiments
IDMethodpHTemperatureDetails
1VAPOR DIFFUSION, HANGING DROP4.72980.7 uL of protein solution (9.7 mg/mL protein, 50 mM Tris buffer pH 8, 200 mM sodium chloride, 2 mM dithiothreitol, 5 mM m7GTP) was mixed with 0.35 uL Hampton Research Silver Bullet screening reagent #36. This mixture was combined with 0.35 uL of well solution (approximately 1.3 M sodium formate, 100 mM sodium citrate buffer pH 4.6, 5 mM dithiothreitol) and suspended over 1 mL of well solution, VAPOR DIFFUSION, HANGING DROP, temperature 298K
Crystal Properties
Matthews coefficientSolvent content
2.7655.41

Crystal Data

Unit Cell
Length ( Å )Angle ( ˚ )
a = 82.1α = 90
b = 82.1β = 90
c = 54.36γ = 120
Symmetry
Space GroupP 65

Diffraction

Diffraction Experiment
ID #Crystal IDScattering TypeData Collection TemperatureDetectorDetector TypeDetailsCollection DateMonochromatorProtocol
11x-ray100CCDADSC QUANTUM 3152008-08-19MSINGLE WAVELENGTH
Radiation Source
ID #SourceTypeWavelength ListSynchrotron SiteBeamline
1SYNCHROTRONALS BEAMLINE 5.0.21.0ALS5.0.2

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
12.81843.18695.30.08220.37.3513548941169.16

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
X-RAY DIFFRACTIONFOURIER SYNTHESISTHROUGHOUTPDB ENTRY 4NCE2.8241.055135487223395.030.17060.17060.16960.1911RANDOM54.59
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]
-4.3265-4.32658.653
RMS Deviations
KeyRefinement Restraint Deviation
t_other_torsion16.24
t_omega_torsion3.94
t_angle_deg1.08
t_bond_d0.01
t_dihedral_angle_d
t_incorr_chiral_ct
t_pseud_angle
t_trig_c_planes
t_gen_planes
t_it
RMS Deviations
KeyRefinement Restraint Deviation
t_other_torsion16.24
t_omega_torsion3.94
t_angle_deg1.08
t_bond_d0.01
t_dihedral_angle_d
t_incorr_chiral_ct
t_pseud_angle
t_trig_c_planes
t_gen_planes
t_it
t_nbd
t_improper_torsion
t_chiral_improper_torsion
t_sum_occupancies
t_utility_distance
t_utility_angle
t_utility_torsion
t_ideal_dist_contact
Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen AtomsNumber
Protein Atoms1287
Nucleic Acid Atoms
Solvent Atoms27
Heterogen Atoms25

Software

Software
Software NamePurpose
BUSTERrefinement
globaldata reduction
globaldata scaling