1GSQ

THREE-DIMENSIONAL STRUCTURE, CATALYTIC PROPERTIES AND EVOLUTION OF A SIGMA CLASS GLUTATHIONE TRANSFERASE FROM SQUID, A PROGENITOR OF THE LENS-CRYSTALLINS OF CEPHALOPODS


X-RAY DIFFRACTION Experimental Data & Validation


X-ray Experimental Help

Crystal Data

Unit Cell
Length (Å) Angle (°)
a = 72.76 α = 90
b = 72.76 β = 90
c = 94.63 γ = 120
Symmetry
Space Group P 31 2 1

Diffraction

Diffraction Detector
Detector Diffraction Type Details Collection Date
AREA DETECTOR ELECTRONICS COMPUTING TECHNOLOGIES -- 1993-01-11
Diffraction Radiation
Monochromator Protocol
-- --
Diffraction Detector Source
Source Type Wavelength List Synchrotron Site Beamline
-- -- -- -- --

Data Collection

Overall
Resolution (High) Resolution (Low) Percent Possible (Observed) R Merge I (Observed) R Sym I (Observed) Net I Over Average Sigma (I) Redundancy Number Reflections (All) Number Reflections (Observed) Observed Criterion Sigma (F) Observed Criterion Sigma (I) B (Isotropic) From Wilson Plot
-- -- 99.7 -- -- -- 3.84 -- 11745 -- -- --

Refinement

Statistics
Structure Solution Method Refinement High Resolution Refinement Low Resolution Cut-off Sigma (I) Cut-off Sigma (F) Number of Reflections (All) Number of Reflections (Observed) Number of Reflections (R-Free) Percent Reflections (Observed) R-Factor (All) R-Factor (Observed) R-Work R-Free R-Free Selection Details
-- 2.4 6.0 -- 4.0 -- 8302 -- 75.0 -- 0.18 -- -- --
Temperature Factor Modeling
Temperature Factor Value
Mean Isotropic B 27.64
RMS Deviations
Key Refinement Restraint Deviation
p_orthonormal_tor 25.9
p_staggered_tor 22.4
p_planar_tor 3.5
p_xhyhbond_nbd 0.227
p_multtor_nbd 0.22
p_bond_d 0.018
p_angle_d 0.036
p_planar_d 0.033
p_mcbond_it 0.55
p_mcangle_it 0.942
p_scbond_it 0.888
p_scangle_it 1.371
p_plane_restr 0.021
p_chiral_restr 0.221
p_singtor_nbd 0.205
Number of Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms Numbers
Protein Atoms 1598
Nucleic Acid Atoms 0
Heterogen Atoms 32
Solvent Atoms 154

Software

Computing
Computing Package Purpose
XENGEN Data Reduction (intensity integration)
GPRLSA, PROLSQ Structure Refinement
Software
Software Name Purpose
PROLSQ refinement
GPRLSA refinement