1YLY

X-ray crystallographic structure of CTX-M-9 beta-lactamase complexed with ceftazidime-like boronic acid


X-RAY DIFFRACTION

Crystallization

Crystalization Experiments
IDMethodpHTemperatureDetails
18.8293potassium phosphate, pH 8.8, VAPOR DIFFUSION, HANGING DROP, temperature 293K, pH 8.80
Crystal Properties
Matthews coefficientSolvent content
1.727.8

Crystal Data

Unit Cell
Length ( Å )Angle ( ˚ )
a = 45.182α = 90
b = 106.845β = 101.9
c = 47.882γ = 90
Symmetry
Space GroupP 1 21 1

Diffraction

Diffraction Experiment
ID #Crystal IDScattering TypeData Collection TemperatureDetectorDetector TypeDetailsCollection DateMonochromatorProtocol
11x-ray100CCDADSC QUANTUM 4MIRRORS2004-07-17MSINGLE WAVELENGTH
Radiation Source
ID #SourceTypeWavelength ListSynchrotron SiteBeamline
1SYNCHROTRONALS BEAMLINE 8.3.1ALS8.3.1

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
11.252292.70.03415.95.22113478-3
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)
1.251.2976.90.2592.13

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 DIFFRACTIONAB INITIOFREE R1YLJ1.2522107782107782563788.10.1290.1290.1290.168RANDOM
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]
Coordinate Error
Structure Solution MethodRefinement High ResolutionRefinement Low Resolution
783767.974751.18
RMS Deviations
KeyRefinement Restraint Deviation
s_approx_iso_adps0.051
s_non_zero_chiral_vol0.047
s_zero_chiral_vol0.04
s_from_restr_planes0.036
s_angle_d0.02
s_similar_adp_cmpnt0.014
s_anti_bump_dis_restr0.012
s_bond_d0.005
s_similar_dist
s_rigid_bond_adp_cmpnt
Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen AtomsNumber
Protein Atoms4213
Nucleic Acid Atoms
Solvent Atoms868
Heterogen Atoms54

Software

Software
Software NamePurpose
SHELXmodel building
SHELXL-97refinement
DENZOdata reduction
SCALEPACKdata scaling
SHELXphasing