1JOE

Crystal Structure of Autoinducer-2 Production Protein (LuxS) from Heamophilus influenzae


X-RAY DIFFRACTION

Crystallization

Crystalization Experiments
IDMethodpHTemperatureDetails
1VAPOR DIFFUSION, HANGING DROP8.5295Method: vapor diffusion-Hanging drop. Well Solution: PEG 4000 25%, MAGNESIUM CHLORIDE 0.2M, TRIS BUFFER 0.1M pH8.5. Drop composition: 15ul OF WELL SOLUTION, 15 ul OF PROTEIN (15mg/ml). Soaking medium: PEG 4000 (27.5%), magnesium chloride 0.2M, Tris buffer 0.1M pH 8.5, Mercury Acetate 0.5mM. Soaking time: 3.5 hrs. Cryo Protectant: Lithium Formate 15%. , VAPOR DIFFUSION, HANGING DROP, temperature 295K
Crystal Properties
Matthews coefficientSolvent content
2.2545.3

Crystal Data

Unit Cell
Length ( Å )Angle ( ˚ )
a = 115.53α = 90
b = 115.53β = 90
c = 51.23γ = 90
Symmetry
Space GroupP 42

Diffraction

Diffraction Experiment
ID #Crystal IDScattering TypeData Collection TemperatureDetectorDetector TypeDetailsCollection DateMonochromatorProtocol
11x-ray100CCDMARRESEARCHmirror2000-07-08MSINGLE WAVELENGTH
Radiation Source
ID #SourceTypeWavelength ListSynchrotron SiteBeamline
1SYNCHROTRONAPS BEAMLINE 17-ID1.00APS17-ID

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
12.3401000.089115.093.673031430314
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)
12.32.441000.4991.683.7

Refinement

Statistics
Diffraction IDStructure Solution MethodCross Validation methodResolution (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 DIFFRACTIONSAD(HG)free R throughout.2.410264052640513351000.20990.20990.20530.2992random
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
4722.5
RMS Deviations
KeyRefinement Restraint Deviation
s_anti_bump_dis_restr0.101
s_similar_adp_cmpnt0.095
s_non_zero_chiral_vol0.022
s_from_restr_planes0.021
s_zero_chiral_vol0.019
s_angle_d0.017
s_bond_d0.004
s_similar_dist
s_rigid_bond_adp_cmpnt
s_approx_iso_adps
Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen AtomsNumber
Protein Atoms4580
Nucleic Acid Atoms
Solvent Atoms134
Heterogen Atoms8

Software

Software
Software NamePurpose
SHELXSphasing
MLPHAREphasing
DMmodel building
SHELXL-97refinement
X-GENdata reduction
X-GENdata scaling
DMphasing