7D1N

Crystal structure of Ixodes scapularis glutaminyl cyclase with three Cu ions bound to the active site


X-RAY DIFFRACTION

Starting Model(s)

Initial Refinement Model(s)
TypeSourceAccession CodeDetails
experimental modelPDB 4MHN 

Crystallization

Crystalization Experiments
IDMethodpHTemperatureDetails
1VAPOR DIFFUSION, SITTING DROP7.5293.1510%(w/v) PEG8000, 8%(v/v) ethylene glycol, 0.1 M HEPES pH 7.5
Crystal Properties
Matthews coefficientSolvent content
2.1743.36

Crystal Data

Unit Cell
Length ( Å )Angle ( ˚ )
a = 53.839α = 90
b = 73.706β = 90
c = 82.603γ = 90
Symmetry
Space GroupP 21 21 21

Diffraction

Diffraction Experiment
ID #Crystal IDScattering TypeData Collection TemperatureDetectorDetector TypeDetailsCollection DateMonochromatorProtocol
11x-ray100CCDRAYONIX MX300HE2017-10-10MSINGLE WAVELENGTH
Radiation Source
ID #SourceTypeWavelength ListSynchrotron SiteBeamline
1SYNCHROTRONNSRRC BEAMLINE BL15A11.0NSRRCBL15A1

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
12.263099.90.12115.54.415907
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)
12.262.3499.80.84224.3

Refinement

Statistics
Diffraction IDStructure Solution MethodCross Validation methodStarting modelResolution (High)Resolution (Low)Number Reflections (Observed)Number Reflections (R-Free)Percent Reflections (Observed)R-Factor (Observed)R-WorkR-FreeR-Free Selection DetailsMean Isotropic B
X-RAY DIFFRACTIONMOLECULAR REPLACEMENTTHROUGHOUT4MHN2.2625.811507079099.590.19030.18570.2806RANDOM35.766
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]
1.87-0.74-1.13
RMS Deviations
KeyRefinement Restraint Deviation
r_dihedral_angle_2_deg37.581
r_dihedral_angle_4_deg20.735
r_dihedral_angle_3_deg18.783
r_dihedral_angle_1_deg7.075
r_angle_refined_deg2.021
r_chiral_restr0.136
r_bond_refined_d0.017
r_gen_planes_refined0.01
Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen AtomsNumber
Protein Atoms2656
Nucleic Acid Atoms
Solvent Atoms164
Heterogen Atoms8

Software

Software
Software NamePurpose
REFMACrefinement
HKL-2000data reduction
HKL-2000data scaling
MOLREPphasing
PDB_EXTRACTdata extraction