X-RAY DIFFRACTION

Starting Model(s)

Initial Refinement Model(s)
TypeSourceAccession CodeDetails
experimental modelPDB 5GSSPDB ENTRY 5GSS

Crystallization

Crystalization Experiments
IDMethodpHTemperatureDetails
1hanging drop6CRYSTALLISATION PERFORMED USING THE HANGING DROP TECHNIQUE. 2 MICROL OF PROTEIN SOLUTION (8MG/ML) IN 10MM PHOSPHATE BUFFER PH7.0, 1MM EDTA AND 2MM BETA-MERCAPTOETHANOL WAS ADDED TO 2 MICROL OF RESERVOIR SOLUTION. THE RESERVOIR CONTAINED 20-25% AMMONIUM SULFATE, 30-60 MM DITHIOTHREITOL AND 100MM MORPHOLINOETHANESULFONIC ACID BUFFER PH5.4. DROPS WERE STREAK SEEDED AFTER 1 DAY USING A CAT'S WHISKER FROM CRYSTALS GROWN UNDER SIMILAR CONDITIONS. AFTER X DAYS, THE CRYSTAL WAS TRANSFERED TO ARTIFICIAL MOTHER LIQUOR WHICH LACKED DITHIOTHREITOL. SOLID BROMOSULFALEIN WAS SEEDED INTO THE DROP. SEVEN WEEKS LATER THE CRYSTALS WERE SUBJECTED TO X-RAY ANALYSIS., pH 6.0, hanging drop
Crystal Properties
Matthews coefficientSolvent content
2.5752.06

Crystal Data

Unit Cell
Length ( Å )Angle ( ˚ )
a = 77.742α = 90
b = 89.984β = 97.54
c = 68.842γ = 90
Symmetry
Space GroupC 1 2 1

Diffraction

Diffraction Experiment
ID #Crystal IDScattering TypeData Collection TemperatureDetectorDetector TypeDetailsCollection DateMonochromatorProtocol
11x-ray100IMAGE PLATEMARRESEARCH1997-11-26M
Radiation Source
ID #SourceTypeWavelength ListSynchrotron SiteBeamline
1ROTATING ANODERIGAKU RUH2R

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
11.94093.30.0614.32.4235002-316.9
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)
11.91.9787.40.2733.5

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 REPLACEMENTTHROUGHOUTPDB ENTRY 5GSS1.91534659172693.80.2120.2120.249RANDOM20.3
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]
RMS Deviations
KeyRefinement Restraint Deviation
x_dihedral_angle_d22.9
x_scangle_it4.41
x_scbond_it3.06
x_mcangle_it2.37
x_mcbond_it1.61
x_angle_deg1.2
x_improper_angle_d0.73
x_bond_d0.008
x_bond_d_na
x_bond_d_prot
RMS Deviations
KeyRefinement Restraint Deviation
x_dihedral_angle_d22.9
x_scangle_it4.41
x_scbond_it3.06
x_mcangle_it2.37
x_mcbond_it1.61
x_angle_deg1.2
x_improper_angle_d0.73
x_bond_d0.008
x_bond_d_na
x_bond_d_prot
x_angle_d
x_angle_d_na
x_angle_d_prot
x_angle_deg_na
x_angle_deg_prot
x_dihedral_angle_d_na
x_dihedral_angle_d_prot
x_improper_angle_d_na
x_improper_angle_d_prot
Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen AtomsNumber
Protein Atoms3262
Nucleic Acid Atoms
Solvent Atoms315
Heterogen Atoms92

Software

Software
Software NamePurpose
X-PLORmodel building
X-PLORrefinement
DENZOdata reduction
SCALEPACKdata scaling
X-PLORphasing