5BIR

DISECTING HISTIDINE INTERACTIONS IN RIBONUCLEASE T1 USING ASN AND GLN MUTATIONS


X-RAY DIFFRACTION

Crystallization

Crystalization Experiments
IDMethodpHTemperatureDetails
1VAPOR DIFFUSION, HANGING DROP4.2VAPOR DIFFUSION, HANGING DROP, 20 MG/ML PROTEIN NAOAC BUF. PH 4.2, 0.125 % 2'GMP, 1.25 % CACL2, 47.5 % MPD, vapor diffusion - hanging drop
Crystal Properties
Matthews coefficientSolvent content
2.5652.01

Crystal Data

Unit Cell
Length ( Å )Angle ( ˚ )
a = 58.39α = 90
b = 58.39β = 90
c = 133.39γ = 90
Symmetry
Space GroupP 41 21 2

Diffraction

Diffraction Experiment
ID #Crystal IDScattering TypeData Collection TemperatureDetectorDetector TypeDetailsCollection DateMonochromatorProtocol
11x-ray293DIFFRACTOMETERENRAF-NONIUS FASTCOLLIMATOR1996-02-20M
Radiation Source
ID #SourceTypeWavelength ListSynchrotron SiteBeamline
1ENRAF-NONIUS

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
1210960.0510.11.315698311.8
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)
1.851.9590.70.0387.21

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 2AAD21015698155497.10.1930.1930.255RANDOM19.7
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]
RMS Deviations
KeyRefinement Restraint Deviation
x_dihedral_angle_d26.8
x_scangle_it4.6
x_scbond_it3.38
x_mcangle_it3.14
x_improper_angle_d3.09
x_angle_deg2.9
x_mcbond_it2.04
x_bond_d0.031
x_bond_d_na
x_bond_d_prot
RMS Deviations
KeyRefinement Restraint Deviation
x_dihedral_angle_d26.8
x_scangle_it4.6
x_scbond_it3.38
x_mcangle_it3.14
x_improper_angle_d3.09
x_angle_deg2.9
x_mcbond_it2.04
x_bond_d0.031
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 Atoms1669
Nucleic Acid Atoms32
Solvent Atoms29
Heterogen Atoms

Software

Software
Software NamePurpose
Agrovatadata collection
ROTAVATAdata reduction
X-PLORmodel building
X-PLORrefinement
CCP4data scaling
ROTAVATAdata scaling
X-PLORphasing