1BXO

ACID PROTEINASE (PENICILLOPEPSIN) (E.C.3.4.23.20) COMPLEX WITH PHOSPHONATE INHIBITOR: METHYL CYCLO[(2S)-2-[[(1R)-1-(N-(L-N-(3-METHYLBUTANOYL)VALYL-L-ASPARTYL)AMINO)-3-METHYLBUT YL] HYDROXYPHOSPHINYLOXY]-3-(3-AMINOMETHYL) PHENYLPROPANOATE


X-RAY DIFFRACTION Experimental Data & Validation


X-ray Experimental Help

Crystallization

Crystalization Experiments
pH 4.6
Details 0.1 M CH3COONA 35% AMMONIUM SULFATE PH 4.6

Crystal Data

Unit Cell
Length (Å) Angle (°)
a = 96.98 α = 90
b = 46.65 β = 115.57
c = 65.71 γ = 90
Symmetry
Space Group C 1 2 1

Diffraction

Diffraction Experiment
ID # Data Collection Temperature
1 100
Diffraction Detector
Detector Diffraction Type Details Collection Date
CCD ADSC CRYSTAL AND MIRROR 1997-11-15
Diffraction Radiation
Monochromator Protocol
SI(111) SINGLE WAVELENGTH
Diffraction Detector Source
Source Type Wavelength List Synchrotron Site Beamline
SYNCHROTRON CHESS BEAMLINE F1 -- CHESS F1

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
0.95 10 98.0 0.053 0.055 -- 2.76 -- 430728 -- -- --
High Resolution Shell
Resolution (High) Resolution (Low) Percent Possible (All) R Merge I (Observed) R-Sym I (Observed) Mean I Over Sigma (Observed) Redundancy Number Unique Reflections (All)
0.95 0.98 53.8 0.16 -- 0.036 1.4 --

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
OTHER 0.95 10.0 -- 0.0 430728 -- 43072 98.0 0.1004 0.0991 -- 0.1247 10%
RMS Deviations
Key Refinement Restraint Deviation
s_angle_d 0.034
s_zero_chiral_vol 0.096
s_non_zero_chiral_vol 0.123
s_anti_bump_dis_restr 0.124
s_bond_d 0.017
Coordinate Error
Parameter Value
Number Disordered Residues 31.0
Occupancy Sum Hydrogen 2247.6
Occupancy Sum Non Hydrogen 2973.4
Number of Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms Numbers
Protein Atoms 2366
Nucleic Acid Atoms 0
Heterogen Atoms 83
Solvent Atoms 528

Software

Software
Software Name Purpose
MOSFLM data reduction
SCALA data scaling
SHELXL-97 refinement
CCP4 data scaling version: (SCALA)