2TYS

CRYSTAL STRUCTURES OF MUTANT (BETAK87T) TRYPTOPHAN SYNTHASE ALPHA2 BETA2 COMPLEX WITH LIGANDS BOUND TO THE ACTIVE SITES OF THE ALPHA AND BETA SUBUNITS REVEAL LIGAND-INDUCED CONFORMATIONAL CHANGES


X-RAY DIFFRACTION

Crystallization

Crystalization Experiments
IDMethodpHTemperatureDetails
17.850MM NABICINE (PH 7.8), 1MM NA-EDTA, 0.8-1.5MM SPERMINE, 12% PEG8000
Crystal Properties
Matthews coefficientSolvent content
2.448

Crystal Data

Unit Cell
Length ( Å )Angle ( ˚ )
a = 185.8α = 90
b = 62.3β = 94.1
c = 67.8γ = 90
Symmetry
Space GroupC 1 2 1

Diffraction

Diffraction Experiment
ID #Crystal IDScattering TypeData Collection TemperatureDetectorDetector TypeDetailsCollection DateMonochromatorProtocol
11x-ray298IMAGE PLATERIGAKU RAXIS IIC1992-12-09M
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
11.984.60.04418.32.25049022.5
Highest Resolution Shell
ID #Resolution (High)Resolution (Low)Percent Possible (All)Percent Possible (Observed)Mean I Over Sigma (Observed)RedundancyNumber Unique Reflections (All)
1.9246.83.7

Refinement

Statistics
Diffraction IDStructure Solution MethodResolution (High)Resolution (Low)Cut-off Sigma (F)Number Reflections (Observed)Number Reflections (R-Free)Percent Reflections (Observed)R-WorkR-FreeMean Isotropic B
X-RAY DIFFRACTIONISOMORPHOUS WITH PDB ENTRY 1WSY.1.9824968482.40.17129.5
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
p_transverse_tor28.9
p_staggered_tor18.3
p_scangle_it6.09
p_scbond_it4.35
p_mcangle_it3.23
p_mcbond_it2.49
p_planar_tor2.4
p_xyhbond_nbd0.167
p_singtor_nbd0.165
p_multtor_nbd0.158
RMS Deviations
KeyRefinement Restraint Deviation
p_transverse_tor28.9
p_staggered_tor18.3
p_scangle_it6.09
p_scbond_it4.35
p_mcangle_it3.23
p_mcbond_it2.49
p_planar_tor2.4
p_xyhbond_nbd0.167
p_singtor_nbd0.165
p_multtor_nbd0.158
p_chiral_restr0.088
p_planar_d0.019
p_angle_d0.018
p_plane_restr0.012
p_bond_d0.009
p_angle_deg
p_hb_or_metal_coord
p_xhyhbond_nbd
p_orthonormal_tor
p_special_tor
Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen AtomsNumber
Protein Atoms4934
Nucleic Acid Atoms
Solvent Atoms358
Heterogen Atoms31

Software

Software
Software NamePurpose
X-PLORmodel building
PROLSQrefinement
X-PLORrefinement
RIGAKUdata reduction
RIGAKUdata scaling
X-PLORphasing