1B3N

BETA-KETOACYL CARRIER PROTEIN SYNTHASE AS A DRUG TARGET, IMPLICATIONS FROM THE CRYSTAL STRUCTURE OF A COMPLEX WITH THE INHIBITOR CERULENIN.


X-RAY DIFFRACTION

Crystallization

Crystalization Experiments
IDMethodpHTemperatureDetails
185.6 MG/ML KAS-CERULENIN COMPLEX IN 0.3M NACL, 25MM TRIS PH8.0, 5MM IMIDAZOLE AND 10% (V/V) GLYCEROL WERE MIXED (2+2UL) WITH A 1000 UL RESERVOIR SOLUTION CONSISTING OF 26% W/V PEG8000 0.1% V/V 2-MERCAPTOETHANOL AND WATER. CRYSTALS APPEARED IN A FEW DAYS
Crystal Properties
Matthews coefficientSolvent content
2.8957.51

Crystal Data

Unit Cell
Length ( Å )Angle ( ˚ )
a = 76.394α = 90
b = 76.394β = 90
c = 147.675γ = 120
Symmetry
Space GroupP 31 2 1

Diffraction

Diffraction Experiment
ID #Crystal IDScattering TypeData Collection TemperatureDetectorDetector TypeDetailsCollection DateMonochromatorProtocol
11x-ray298IMAGE PLATEMARRESEARCH1998-03-06MSINGLE WAVELENGTH
Radiation Source
ID #SourceTypeWavelength ListSynchrotron SiteBeamline
1SYNCHROTRONMAX II BEAMLINE I711MAX III711

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
12.653083.40.0955.31.812600
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)
12.652.7271.80.3251.61.6

Refinement

Statistics
Diffraction IDStructure Solution MethodCross Validation methodResolution (High)Resolution (Low)Number Reflections (Observed)Number Reflections (R-Free)Percent Reflections (Observed)R-WorkR-FreeR-Free Selection DetailsMean Isotropic B
X-RAY DIFFRACTIONOTHERTHROUGHOUT2.65302289663183.40.2130.27EVERY 20TH REFLECTION
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]
Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen AtomsNumber
Protein Atoms3005
Nucleic Acid Atoms
Solvent Atoms53
Heterogen Atoms16

Software

Software
Software NamePurpose
SIGMAAmodel building
REFMACrefinement
DENZOdata reduction
CCP4data scaling
SIGMAAphasing