3U72

Crystal Structure of C-lobe of Bovine lactoferrin Complexed with Isoniazid at 2.2 A Resolution


X-RAY DIFFRACTION

Starting Model(s)

Initial Refinement Model(s)
TypeSourceAccession CodeDetails
experimental modelPDB 3IB0PDB ENTRY 3IB0

Crystallization

Crystalization Experiments
IDMethodpHTemperatureDetails
1VAPOR DIFFUSION, HANGING DROP6.52980.01M Znso4, 0.1M MES, 25% PEG, Monomethyl Ether 550 , pH 6.5, VAPOR DIFFUSION, HANGING DROP, temperature 298K
Crystal Properties
Matthews coefficientSolvent content
2.652.72

Crystal Data

Unit Cell
Length ( Å )Angle ( ˚ )
a = 62.4α = 90
b = 49.89β = 107.14
c = 65.2γ = 90
Symmetry
Space GroupP 1 21 1

Diffraction

Diffraction Experiment
ID #Crystal IDScattering TypeData Collection TemperatureDetectorDetector TypeDetailsCollection DateMonochromatorProtocol
11x-ray77CCDMARRESEARCHmirror2011-09-22MSINGLE WAVELENGTH
Radiation Source
ID #SourceTypeWavelength ListSynchrotron SiteBeamline
1SYNCHROTRONESRF BEAMLINE BM140.97ESRFBM14

Data Collection

Overall
ID #Resolution (High)Resolution (Low)Percent Possible (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
12.239.8499.50.1426.41958819581
Highest Resolution Shell
ID #Resolution (High)Resolution (Low)Percent Possible (All)Percent Possible (Observed)R-Sym I (Observed)Mean I Over Sigma (Observed)RedundancyNumber Unique Reflections (All)
12.22.3299.60.43.4

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 DIFFRACTIONMOLECULAR REPLACEMENTTHROUGHOUTPDB ENTRY 3IB02.238.941958818561100199.220.195670.195670.19380.22996RANDOM32.468
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]
2.04-1.45-2.16-0.73
RMS Deviations
KeyRefinement Restraint Deviation
r_dihedral_angle_2_deg37.384
r_dihedral_angle_4_deg22.606
r_dihedral_angle_3_deg16.73
r_angle_refined_deg1.773
r_dihedral_angle_1_deg1.669
r_chiral_restr0.122
r_gen_planes_refined0.013
r_bond_refined_d0.012
Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen AtomsNumber
Protein Atoms2604
Nucleic Acid Atoms
Solvent Atoms285
Heterogen Atoms92

Software

Software
Software NamePurpose
HKL-2000data collection
AMoREphasing
REFMACrefinement
HKL-2000data reduction
SCALEPACKdata scaling