4A6E
Crystal structure of human N-acetylserotonin methyltransferase (ASMT) in complex with SAM and N-acetylserotonin
X-RAY DIFFRACTION
Crystallization
Crystalization Experiments | ||||
---|---|---|---|---|
ID | Method | pH | Temperature | Details |
1 | 6.5 | 30% PEG400, 0.1M CACODYLATE PH6.5, 0.2M LISO4 |
Crystal Properties | |
---|---|
Matthews coefficient | Solvent content |
4.52 | 68 |
Crystal Data
Unit Cell | |
---|---|
Length ( Å ) | Angle ( ˚ ) |
a = 170.08 | α = 90 |
b = 170.08 | β = 90 |
c = 128.22 | 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 | CCD | MARRESEARCH | KB MIRRORS | 2009-05-09 | M | SINGLE WAVELENGTH |
Radiation Source | |||||
---|---|---|---|---|---|
ID # | Source | Type | Wavelength List | Synchrotron Site | Beamline |
1 | SYNCHROTRON | ESRF BEAMLINE ID23-2 | ESRF | ID23-2 |
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 | 2.7 | 42.7 | 99.7 | 0.09 | 23.3 | 7.5 | 19684 | -3 | 66.92 |
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 | 2.7 | 2.86 | 98 | 0.75 | 3.4 | 7.5 |
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 | SAD | THROUGHOUT | 2.7 | 42.74 | 19662 | 829 | 0.1653 | 0.1633 | 0.2122 | RANDOM | 69.91 |
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] | |
20.8931 | 20.8931 | -41.7861 |
RMS Deviations | |
---|---|
Key | Refinement Restraint Deviation |
t_other_torsion | 19.24 |
t_omega_torsion | 2.86 |
t_angle_deg | 1.13 |
t_bond_d | 0.01 |
t_dihedral_angle_d | |
t_incorr_chiral_ct | |
t_pseud_angle | |
t_trig_c_planes | |
t_gen_planes | |
t_it |
Non-Hydrogen Atoms Used in Refinement | |
---|---|
Non-Hydrogen Atoms | Number |
Protein Atoms | 2692 |
Nucleic Acid Atoms | |
Solvent Atoms | 49 |
Heterogen Atoms | 80 |
Software
Software | |
---|---|
Software Name | Purpose |
BUSTER | refinement |
XDS | data reduction |
XSCALE | data scaling |