2FY5

Structures of ligand bound human choline acetyltransferase provide insight into regulation of acetylcholine synthesis


X-RAY DIFFRACTION

Crystallization

Crystalization Experiments
IDMethodpHTemperatureDetails
1VAPOR DIFFUSION, SITTING DROP8.527711-13% PEG 3350, 0.1M Tris-HCl, crystal soaked in 20mM S-(2-oxopropyl)-coenzyme A, pH 8.5, VAPOR DIFFUSION, SITTING DROP, temperature 277K
Crystal Properties
Matthew coefficientSolvent content
2.4950.58

Crystal Data

Unit Cell
Length ( Å )Angle ( ˚ )
a = 55.27α = 90
b = 74.03β = 90
c = 165.83γ = 90
Symmetry
Space GroupP 21 21 21

Diffraction

Diffraction Experiment
ID #Crystal IDScattering TypeData Collection TemperatureDetectorDetector TypeDetailsCollection DateMonochromatorProtocol
11x-ray100IMAGE PLATEMARRESEARCHmirrors2005-11-16MSINGLE WAVELENGTH
Radiation Source
ID #SourceTypeWavelength ListSynchrotron SiteBeamline
1ROTATING ANODERIGAKU RUH3R1.5418

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
12.64095.70.1336.218.42100921009
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)
2.62.6986.10.5316.2

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 1Q6X2.617.992160020754207796.10.2760.2760.2370.285random43.5
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]
11.84-11.870.04
RMS Deviations
KeyRefinement Restraint Deviation
c_dihedral_angle_d21.3
c_angle_deg1.3
c_improper_angle_d0.92
c_bond_d0.007
Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen AtomsNumber
Protein Atoms4514
Nucleic Acid Atoms
Solvent Atoms104
Heterogen Atoms52

Software

Software
Software NamePurpose
DENZOdata reduction
SCALEPACKdata scaling
AMoREphasing
CNSrefinement
PDB_EXTRACTdata extraction