1N3T
Biosynthesis of pteridins. Reaction mechanism of GTP cyclohydrolase I
X-RAY DIFFRACTION
Crystallization
Crystalization Experiments | ||||
---|---|---|---|---|
ID | Method | pH | Temperature | Details |
1 | VAPOR DIFFUSION, SITTING DROP | 8.2 | 293 | Peg6000, pH 8.2, VAPOR DIFFUSION, SITTING DROP, temperature 293K |
Crystal Properties | |
---|---|
Matthews coefficient | Solvent content |
3.16 | 61.06 |
Crystal Data
Unit Cell | |
---|---|
Length ( Å ) | Angle ( ˚ ) |
a = 223.14 | α = 90 |
b = 317.81 | β = 90 |
c = 132.15 | γ = 90 |
Symmetry | |
---|---|
Space Group | C 2 2 21 |
Diffraction
Diffraction Experiment | ||||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
ID # | Crystal ID | Scattering Type | Data Collection Temperature | Detector | Detector Type | Details | Collection Date | Monochromator | Protocol | |||||
1 | 1 | x-ray | 100 | IMAGE PLATE | MARRESEARCH | 2001-10-15 | M | SINGLE WAVELENGTH |
Radiation Source | |||||
---|---|---|---|---|---|
ID # | Source | Type | Wavelength List | Synchrotron Site | Beamline |
1 | ROTATING ANODE | RIGAKU | 1.5418 |
Data Collection
Overall | |||||||||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
ID # | Resolution (High) | Resolution (Low) | Percent Possible (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 | 3.2 | 20 | 98.6 | 70145 | 3 | 2 |
Refinement
Statistics | |||||||||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Diffraction ID | Structure Solution Method | Resolution (High) | Resolution (Low) | Cut-off Sigma (F) | Number Reflections (All) | Number Reflections (Observed) | Number Reflections (R-Free) | Percent Reflections (Observed) | R-Factor (All) | R-Factor (Observed) | R-Work (Depositor) | R-Free (Depositor) | R-Free Selection Details | Mean Isotropic B | |||||
X-RAY DIFFRACTION | MOLECULAR REPLACEMENT | 3.2 | 20 | 3 | 70145 | 51546 | 3500 | 0.2 | 0.185 | 0.185 | 0.228 | RANDOM |
RMS Deviations | |
---|---|
Key | Refinement Restraint Deviation |
x_angle_deg | 1.47 |
x_bond_d | 0.008 |
Non-Hydrogen Atoms Used in Refinement | |
---|---|
Non-Hydrogen Atoms | Number |
Protein Atoms | 25995 |
Nucleic Acid Atoms | |
Solvent Atoms | |
Heterogen Atoms | 480 |
Software
Software | |
---|---|
Software Name | Purpose |
MOSFLM | data reduction |
SCALA | data scaling |
MOLREP | phasing |
CNS | refinement |
CCP4 | data scaling |