1HEF

The crystal structures at 2.2 angstroms resolution of hydroxyethylene-based inhibitors bound to human immunodeficiency virus type 1 protease show that the inhibitors are present in two distinct orientations


X-RAY DIFFRACTION Experimental Data & Validation


X-ray Experimental Help

Crystal Data

Unit Cell
Length (Å) Angle (°)
a = 63.07 α = 90
b = 63.07 β = 90
c = 83.52 γ = 120
Symmetry
Space Group P 61 2 2

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
-- 2.2 5.0 2.0 -- -- 3649 -- -- -- 0.159 -- -- --
RMS Deviations
Key Refinement Restraint Deviation
p_planar_tor 1.7
p_angle_d 0.044
p_planar_d 0.055
p_bond_d 0.02
p_staggered_tor 23.7
p_chiral_restr 0.219
p_orthonormal_tor 30.0
Number of Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms Numbers
Protein Atoms 806
Nucleic Acid Atoms 0
Heterogen Atoms 0
Solvent Atoms 23

Software

Software
Software Name Purpose
PROLSQ refinement