1EYE

1.7 ANGSTROM RESOLUTION CRYSTAL STRUCTURE OF 6-HYDROXYMETHYL-7,8-DIHYDROPTEROATE SYNTHASE (DHPS) FROM MYCOBACTERIUM TUBERCULOSIS IN COMPLEX WITH 6-HYDROXYMETHYLPTERIN MONOPHOSPHATE


X-RAY DIFFRACTION Experimental Data & Validation


X-ray Experimental Help

Crystallization

Crystalization Experiments
Method Vapor Diffusion Sitting Drop
pH 5.8
Temperature 140.0
Details PEG 4000, Sodium Acetate, Ammonium Acetate, para-aminosalicylic acid, 6-hydroxymethl pterin monophosphate, pH 5.8, VAPOR DIFFUSION, SITTING DROP, temperature 140K

Crystal Data

Unit Cell
Length (Å) Angle (°)
a = 62.9 α = 90
b = 62.9 β = 90
c = 121.4 γ = 120
Symmetry
Space Group P 32 2 1

Diffraction

Diffraction Experiment
ID # Data Collection Temperature
1 140
Diffraction Detector
Detector Diffraction Type Details Collection Date
IMAGE PLATE RIGAKU RAXIS IIC -- 1999-07-04
Diffraction Radiation
Monochromator Protocol
-- SINGLE WAVELENGTH
Diffraction Detector Source
Source Type Wavelength List Synchrotron Site Beamline
ROTATING ANODE RIGAKU RU200 -- -- --

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
1.7 26.5 80.5 0.043 -- -- 5.4 136341 25211 2.0 2.0 20.649
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)
1.7 1.76 69.9 0.177 -- -- 4.1 2137

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
-- 1.7 20.0 0.0 0.0 25211 25211 1236 80.5 0.185 0.185 0.185 0.243 RANDOM
Number of Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms Numbers
Protein Atoms 1847
Nucleic Acid Atoms 0
Heterogen Atoms 19
Solvent Atoms 244

Software

Software
Software Name Purpose
AMoRE phasing
TNT refinement
CCP4 data scaling version: (TRUNCATE)