1IVH
STRUCTURE OF HUMAN ISOVALERYL-COA DEHYDROGENASE AT 2.6 ANGSTROMS RESOLUTION: STRUCTURAL BASIS FOR SUBSTRATE SPECIFICITY
X-RAY DIFFRACTION
Starting Model(s)
Initial Refinement Model(s) | |||
---|---|---|---|
Type | Source | Accession Code | Details |
experimental model | PDB | 3MDE |
Crystallization
Crystalization Experiments | ||||
---|---|---|---|---|
ID | Method | pH | Temperature | Details |
1 | 8.5 | 292 | PROTEIN WAS CRYSTALLIZED FROM 8% PEG 8000, 0.1 M TRIS, PH 8.5 AT 19 DEGREES CELSIUS., temperature 292K |
Crystal Properties | |
---|---|
Matthews coefficient | Solvent content |
2.4 | 51 |
Crystal Data
Unit Cell | |
---|---|
Length ( Å ) | Angle ( ˚ ) |
a = 94 | α = 90 |
b = 97.7 | β = 90 |
c = 181.7 | γ = 90 |
Symmetry | |
---|---|
Space Group | P 21 21 21 |
Diffraction
Diffraction Experiment | ||||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
ID # | Crystal ID | Scattering Type | Data Collection Temperature | Detector | Detector Type | Details | Collection Date | Monochromator | Protocol | |||||
1 | 1 | x-ray | 277 | IMAGE PLATE | RIGAKU | COLLIMATOR | 1994-04-09 | M |
Radiation Source | |||||
---|---|---|---|---|---|
ID # | Source | Type | Wavelength List | Synchrotron Site | Beamline |
1 | ROTATING ANODE | RIGAKU RUH2R |
Data Collection
Overall | |||||||||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
ID # | 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 | 2.6 | 30 | 82.2 | 0.07 | 0.07 | 11.5 | 2.4 | 42529 |
Highest Resolution Shell | |||||||||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
ID # | Resolution (High) | Resolution (Low) | Percent Possible (All) | Percent Possible (Observed) | R-Sym I (Observed) | Mean I Over Sigma (Observed) | Redundancy | Number Unique Reflections (All) | |||||||||||
2.6 | 2.64 | 61 | 0.219 | 2.3 | 2.1 |
Refinement
Statistics | |||||||||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Diffraction ID | Structure Solution Method | Cross Validation method | Starting model | Resolution (High) | Resolution (Low) | Cut-off Sigma (F) | 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 | MOLECULAR REPLACEMENT | FREE R | PDB ENTRY 1MDE | 2.6 | 10 | 1 | 37968 | 2702 | 82.5 | 0.207 | 0.207 | 0.288 | RANDOM | 12 |
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] | |
RMS Deviations | |
---|---|
Key | Refinement Restraint Deviation |
x_dihedral_angle_d | 22.53 |
x_angle_deg | 1.5 |
x_improper_angle_d | 1.3 |
x_bond_d | 0.009 |
x_bond_d_na | |
x_bond_d_prot | |
x_angle_d | |
x_angle_d_na | |
x_angle_d_prot | |
x_angle_deg_na |
Non-Hydrogen Atoms Used in Refinement | |
---|---|
Non-Hydrogen Atoms | Number |
Protein Atoms | 11844 |
Nucleic Acid Atoms | |
Solvent Atoms | 215 |
Heterogen Atoms | 408 |
Software
Software | |
---|---|
Software Name | Purpose |
DENZO | data reduction |
SCALEPACK | data scaling |
X-PLOR | model building |
X-PLOR | refinement |
X-PLOR | phasing |