X-RAY DIFFRACTION

Starting Model(s)

Initial Refinement Model(s)
TypeSourceAccession CodeDetails
experimental modelPDB 1H19pdb entry 1H19

Crystallization

Crystalization Experiments
IDMethodpHTemperatureDetails
1liquid-liquid diffusion298TRI-PEPTIDE WAS CO-CRYSTALLIZED WITH [E296Q]LTA4H BY LIQUID-LIQUID DIFFUSION IN MELTING-POINT CAPILLARIES. A TRIS-BUFFERED (10 mM, PH 7.5) SOLUTION OF PROTEIN AND TRIPEPTIDE, MOLAR RATIO 1:10 (~70 MICROM PROTEIN), WAS LAYERED ON THE PRECIPITATE SOLUTION CONTAINING 28% (WEIGHT/VOLUME) POLYETHYLENE GLYCOL (MW 8000), 50 mM NA ACETATE, 100 mM IMIDAZOLE, PH 6.8, AND 5 MM YBCL3. CRYSTALS WERE ADDITIONALLY SOAKED IN SOLUTIONS WITH INCREASED TRI-PEPTIDE CONCENTRATION PRIOR TO DATA COLLECTION, liquid-liquid diffusion, temperature 298K
Crystal Properties
Matthews coefficientSolvent content
2.4449.64

Crystal Data

Unit Cell
Length ( Å )Angle ( ˚ )
a = 78.49α = 90
b = 87.785β = 90
c = 99.916γ = 90
Symmetry
Space GroupP 21 21 21

Diffraction

Diffraction Experiment
ID #Crystal IDScattering TypeData Collection TemperatureDetectorDetector TypeDetailsCollection DateMonochromatorProtocol
11x-ray100CCDMARMOSAIC 225 mm CCD2005-10-05MSINGLE WAVELENGTH
Radiation Source
ID #SourceTypeWavelength ListSynchrotron SiteBeamline
1SYNCHROTRONMAX II BEAMLINE I7110.97MAX III711

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
12.343.4296.60.1257.455719757220-337.1
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)
2.32.597.70.8012.82.543665

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-WorkR-FreeR-Free Selection DetailsMean Isotropic B
X-RAY DIFFRACTIONTHROUGHOUTpdb entry 1H192.3305923557183190296.50.2060.273RANDOM49.7
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]
4.92-5.860.94
RMS Deviations
KeyRefinement Restraint Deviation
x_torsion_deg22.7
x_angle_deg1.3
x_torsion_impr_deg0.85
x_bond_d0.007
Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen AtomsNumber
Protein Atoms4903
Nucleic Acid Atoms
Solvent Atoms31
Heterogen Atoms8

Software

Software
Software NamePurpose
XSCALEdata scaling
CNSrefinement
PDB_EXTRACTdata extraction
MAR345dtbdata collection
XDSdata reduction
XDSdata scaling
XFITdata reduction