4GL3
Crystal structure of a putative glucoamylase (BACUNI_03963) from Bacteroides uniformis ATCC 8492 at 2.01 A resolution
X-RAY DIFFRACTION
Crystallization
Crystalization Experiments | ||||
---|---|---|---|---|
ID | Method | pH | Temperature | Details |
1 | VAPOR DIFFUSION, SITTING DROP | 8.5 | 277 | 20.0% polyethylene glycol 300, 10.0% Glycerol, 5.0% polyethylene glycol 8000, 0.1M TRIS pH 8.5, NANODROP, VAPOR DIFFUSION, SITTING DROP, temperature 277K |
Crystal Properties | |
---|---|
Matthews coefficient | Solvent content |
3.9 | 68.49 |
Crystal Data
Unit Cell | |
---|---|
Length ( Å ) | Angle ( ˚ ) |
a = 121.568 | α = 90 |
b = 121.568 | β = 90 |
c = 267.888 | γ = 120 |
Symmetry | |
---|---|
Space Group | H 3 2 |
Diffraction
Diffraction Experiment | ||||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
ID # | Crystal ID | Scattering Type | Data Collection Temperature | Detector | Detector Type | Details | Collection Date | Monochromator | Protocol | |||||
1 | 1 | x-ray | 100 | PIXEL | DECTRIS PILATUS 6M | Flat mirror (vertical focusing); single crystal Si(111) bent monochromator (horizontal focusing) | 2012-06-27 | M | MAD |
Radiation Source | |||||
---|---|---|---|---|---|
ID # | Source | Type | Wavelength List | Synchrotron Site | Beamline |
1 | SYNCHROTRON | SSRL BEAMLINE BL11-1 | 0.91837,0.9792,0.97883 | SSRL | BL11-1 |
Data Collection
Overall | |||||||||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
ID # | Resolution (High) | Resolution (Low) | Percent Possible (Observed) | R Merge 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 | 2.01 | 29.028 | 99.6 | 0.108 | 8.97 | 7.23 | 50890 | -3 | 28.41 |
Highest Resolution Shell | |||||||||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
ID # | Resolution (High) | Resolution (Low) | Percent Possible (All) | Percent Possible (Observed) | R Merge I (Observed) | Mean I Over Sigma (Observed) | Redundancy | Number Unique Reflections (All) | |||||||||||
1 | 2.01 | 2.08 | 99.4 | 0.887 | 1.55 |
Refinement
Statistics | |||||||||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Diffraction ID | Structure Solution Method | Cross Validation method | Resolution (High) | Resolution (Low) | Number Reflections (Observed) | Number Reflections (R-Free) | Percent Reflections (Observed) | R-Factor (Observed) | R-Work | R-Free | R-Free Selection Details | Mean Isotropic B | |||||||
X-RAY DIFFRACTION | MAD | THROUGHOUT | 2.01 | 29.028 | 50888 | 2580 | 99.77 | 0.1427 | 0.1412 | 0.1699 | RANDOM | 34.1577 |
Temperature Factor Modeling | ||||||
---|---|---|---|---|---|---|
Anisotropic B[1][1] | Anisotropic B[1][2] | Anisotropic B[1][3] | Anisotropic B[2][2] | Anisotropic B[2][3] | Anisotropic B[3][3] | |
1.56 | 0.78 | 1.56 | -2.34 |
RMS Deviations | |
---|---|
Key | Refinement Restraint Deviation |
r_dihedral_angle_2_deg | 35.832 |
r_dihedral_angle_4_deg | 17.027 |
r_dihedral_angle_3_deg | 12.647 |
r_dihedral_angle_1_deg | 6.14 |
r_angle_refined_deg | 1.504 |
r_angle_other_deg | 0.904 |
r_chiral_restr | 0.091 |
r_bond_refined_d | 0.014 |
r_gen_planes_refined | 0.008 |
r_bond_other_d | 0.001 |
Non-Hydrogen Atoms Used in Refinement | |
---|---|
Non-Hydrogen Atoms | Number |
Protein Atoms | 3319 |
Nucleic Acid Atoms | |
Solvent Atoms | 397 |
Heterogen Atoms | 40 |
Software
Software | |
---|---|
Software Name | Purpose |
MolProbity | model building |
PDB_EXTRACT | data extraction |
SHELX | phasing |
SHARP | phasing |
XSCALE | data scaling |
REFMAC | refinement |
XDS | data reduction |
SHELXD | phasing |