1HR2

CRYSTAL STRUCTURE ANALYSIS OF A MUTANT P4-P6 DOMAIN (DELC209) OF TETRAHYMENA THEMOPHILA GROUP I INTRON.


X-RAY DIFFRACTION

Starting Model(s)

Initial Refinement Model(s)
TypeSourceAccession CodeDetails
experimental modelPDB 1GIDPDB entry 1gid

Crystallization

Crystalization Experiments
IDMethodpHTemperatureDetails
1VAPOR DIFFUSION, SITTING DROP6.5293MPD, magnesium chloride, sodium cacodylate, spermine, sodium chloride, pH 6.5, VAPOR DIFFUSION, SITTING DROP, temperature 293K
Crystal Properties
Matthews coefficientSolvent content
3.3763.46

Crystal Data

Unit Cell
Length ( Å )Angle ( ˚ )
a = 75.3α = 90
b = 125.4β = 90
c = 145.7γ = 90
Symmetry
Space GroupP 21 21 21

Diffraction

Diffraction Experiment
ID #Crystal IDScattering TypeData Collection TemperatureDetectorDetector TypeDetailsCollection DateMonochromatorProtocol
11x-ray100CCDADSC QUANTUM 4W16 wiggler1999-03-24MSINGLE WAVELENGTH
Radiation Source
ID #SourceTypeWavelength ListSynchrotron SiteBeamline
1SYNCHROTRONALS BEAMLINE 5.0.11.1ALS5.0.1

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
12.2530980.05122.74.86490064900-3
Highest Resolution Shell
ID #Resolution (High)Resolution (Low)Percent Possible (All)Percent Possible (Observed)R Merge I (Observed)R-Sym I (Observed)Mean I Over Sigma (Observed)RedundancyNumber Unique Reflections (All)
2.252.3399.30.57857.82.44.46463

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 DIFFRACTIONMOLECULAR REPLACEMENTTHROUGHOUTPDB entry 1gid2.25306617060667301791.70.2440.264used the same Rfree reflection set as was used for 1gid which was then extended to include a random (10%) selection of the newly observed reflections.75.4
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]
13.601-31.57317.972
RMS Deviations
KeyRefinement Restraint Deviation
c_dihedral_angle_d16.98629
c_improper_angle_d2.16594
c_angle_deg1.50534
c_bond_d0.010535
Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen AtomsNumber
Protein Atoms
Nucleic Acid Atoms6741
Solvent Atoms126
Heterogen Atoms181

Software

Software
Software NamePurpose
CNSrefinement
DENZOdata reduction
SCALEPACKdata scaling
CNSphasing