1E7W

ONE ACTIVE SITE, TWO MODES OF REDUCTION CORRELATE THE MECHANISM OF LEISHMANIA PTERIDINE REDUCTASE WITH PTERIN METABOLISM AND ANTIFOLATE DRUG RESISTANCE IN TRPANOSOMES


X-RAY DIFFRACTION Experimental Data & Validation


X-ray Experimental Help

Crystallization

Crystalization Experiments
pH 5.4
Details pH 5.40

Crystal Data

Unit Cell
Length (Å) Angle (°)
a = 80.31 α = 90
b = 80.8 β = 90
c = 90.75 γ = 90
Symmetry
Space Group P 21 21 2

Diffraction

Diffraction Experiment
ID # Data Collection Temperature
1 100
Diffraction Detector
Detector Diffraction Type Details Collection Date
-- -- -- --
Diffraction Radiation
Monochromator Protocol
-- MAD
Diffraction Detector Source
Source Type Wavelength List Synchrotron Site Beamline
SYNCHROTRON SRS BEAMLINE PX9.6 0.87, 0.886, 0.97950, 0.97960 SRS PX9.6

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
1.75 30 98.2 -- 0.45 -- 5.7 -- 59475 -- -- 25.7

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
MAD 1.75 30.0 -- 0.0 -- 56168 3016 98.2 -- -- 0.196 0.244 RANDOM
Temperature Factor Modeling
Temperature Factor Value
Mean Isotropic B 32.5
RMS Deviations
Key Refinement Restraint Deviation
p_singtor_nbd 0.182
p_angle_d 0.032
p_mcangle_it 3.564
p_transverse_tor 27.615
p_mcbond_it 2.799
p_planar_tor 2.629
p_plane_restr 0.003
p_scangle_it 4.375
p_bond_d 0.015
p_planar_d 0.041
p_multtor_nbd 0.28
p_xyhbond_nbd 0.144
p_chiral_restr 0.222
p_staggered_tor 14.776
p_scbond_it 3.229
Number of Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms Numbers
Protein Atoms 3917
Nucleic Acid Atoms 0
Heterogen Atoms 174
Solvent Atoms 476

Software

Computing
Computing Package Purpose
REFMAC Structure Refinement
Software
Software Name Purpose
REFMAC refinement