2AOX

Histamine Methyltransferase (Primary Variant T105) Complexed with the Acetylcholinesterase Inhibitor and Altzheimer's Disease Drug Tacrine


X-RAY DIFFRACTION

Starting Model(s)

Initial Refinement Model(s)
TypeSourceAccession CodeDetails
experimental modelPDB 1JQDpdb entry 1JQD

Crystallization

Crystalization Experiments
IDMethodpHTemperatureDetails
1VAPOR DIFFUSION, HANGING DROP6.2289PEG 6000, MES, ethyleneglycol, pH 6.2, VAPOR DIFFUSION, HANGING DROP, temperature 289K
Crystal Properties
Matthews coefficientSolvent content
2.5451.5

Crystal Data

Unit Cell
Length ( Å )Angle ( ˚ )
a = 132.34α = 90
b = 132.34β = 90
c = 64.58γ = 120
Symmetry
Space GroupP 6

Diffraction

Diffraction Experiment
ID #Crystal IDScattering TypeData Collection TemperatureDetectorDetector TypeDetailsCollection DateMonochromatorProtocol
11x-ray173CCDADSC QUANTUM 42000-03-26MSINGLE WAVELENGTH
Radiation Source
ID #SourceTypeWavelength ListSynchrotron SiteBeamline
1SYNCHROTRONNSLS BEAMLINE X26C1.1NSLSX26C

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
13.122599.50.10710.751157011570-3
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)
3.123.191000.273750

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 1JQD3.122511570115705050.2350.2350.2290.285RANDOM 5%14.4
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]
-1.911.61-1.913.82
RMS Deviations
KeyRefinement Restraint Deviation
c_dihedral_angle_d22.9
c_angle_deg1.3
c_improper_angle_d0.8
c_bond_d0.011
Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen AtomsNumber
Protein Atoms4472
Nucleic Acid Atoms
Solvent Atoms9
Heterogen Atoms30

Software

Software
Software NamePurpose
DENZOdata reduction
SCALEPACKdata scaling
GLRFphasing
CNSrefinement