1QY0

Thermodynamics of Binding of 2-methoxy-3-isopropylpyrazine and 2-methoxy-3-isobutylpyrazine to the Major Urinary Protein


X-RAY DIFFRACTION

Starting Model(s)

Initial Refinement Model(s)
TypeSourceAccession CodeDetails
experimental modelPDB 1I06PDB ENTRY 1I06

Crystallization

Crystalization Experiments
IDMethodpHTemperatureDetails
1VAPOR DIFFUSION, HANGING DROP4.9291CADMIUM CHLORIDE, MALATE/HCL, pH 4.9, VAPOR DIFFUSION, HANGING DROP, temperature 291.0K
Crystal Properties
Matthews coefficientSolvent content
2.4549.7

Crystal Data

Unit Cell
Length ( Å )Angle ( ˚ )
a = 53.627α = 90
b = 53.627β = 90
c = 137.008γ = 90
Symmetry
Space GroupP 43 21 2

Diffraction

Diffraction Experiment
ID #Crystal IDScattering TypeData Collection TemperatureDetectorDetector TypeDetailsCollection DateMonochromatorProtocol
11x-ray100CCDADSC QUANTUM 4mirrors2002-04-05MSINGLE WAVELENGTH
Radiation Source
ID #SourceTypeWavelength ListSynchrotron SiteBeamline
1SYNCHROTRONSRS BEAMLINE PX14.11.49SRSPX14.1

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
11.82593.10.094.95.5193331800619.4
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)
11.81.994.20.2335.12581

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 1I061.825180061800692193.10.1790.1790.1770.218RANDOM29.19
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]
-3.8-3.87.6
RMS Deviations
KeyRefinement Restraint Deviation
c_dihedral_angle_d26.2
c_angle_deg1.76
c_improper_angle_d1.06
c_bond_d0.017
Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen AtomsNumber
Protein Atoms1272
Nucleic Acid Atoms
Solvent Atoms208
Heterogen Atoms11

Software

Software
Software NamePurpose
MOSFLMdata reduction
SCALAdata scaling
AMoREphasing
CNSrefinement
CCP4data scaling