1PII

THREE-DIMENSIONAL STRUCTURE OF THE BIFUNCTIONAL ENZYME PHOSPHORIBOSYLANTHRANILATE ISOMERASE: INDOLEGLYCEROLPHOSPHATE SYNTHASE FROM ESCHERICHIA COLI REFINED AT 2.0 ANGSTROMS RESOLUTION


X-RAY DIFFRACTION Experimental Data & Validation


X-ray Experimental Help

Crystal Data

Unit Cell
Length (Å) Angle (°)
a = 104.7 α = 90
b = 104.7 β = 90
c = 68 γ = 90
Symmetry
Space Group P 41

Diffraction

Diffraction Radiation
Monochromator Protocol
-- --
Diffraction Detector Source
Source Type Wavelength List Synchrotron Site Beamline

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
-- 2.0 15.0 -- -- -- 44611 -- -- -- 0.173 -- -- --
RMS Deviations
Key Refinement Restraint Deviation
t_bond_d 0.01
t_angle_deg 3.2
Number of Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms Numbers
Protein Atoms 3524
Nucleic Acid Atoms 0
Heterogen Atoms 10
Solvent Atoms 628

Software

Software
Software Name Purpose
X-PLOR model building
TNT refinement
X-PLOR refinement
X-PLOR phasing