2.85 Angstrom Resolution Crystal Structure of Glyceraldehyde 3-phosphate Dehydrogenase A (gapA) from Escherichia coli Modified by Acetyl Phosphate.
X-RAY DIFFRACTION
Starting Model(s)
| Initial Refinement Model(s) | |||
|---|---|---|---|
| Type | Source | Accession Code | Details | 
| experimental model | PDB | 1S7C | |
Crystallization
| Crystalization Experiments | ||||
|---|---|---|---|---|
| ID | Method | pH | Temperature | Details | 
| 1 | VAPOR DIFFUSION, SITTING DROP | 7.5 | 295 | Protein - 7.3mg/mL, 0.15M Sodium chloride, 0.01M Tris-HCl pH 8.3, Screen - PACT (G2), 0.2 M Sodium bromide, 0.1 M Bis Tris propane pH 7.5, 20 % (w/v) PEG 3350, 10mM ACP., VAPOR DIFFUSION, SITTING DROP, temperature 295K | 
| Crystal Properties | |
|---|---|
| Matthews coefficient | Solvent content | 
| 2.22 | 44.69 | 
Crystal Data
| Unit Cell | |
|---|---|
| Length ( Å ) | Angle ( ˚ ) | 
| a = 145.879 | α = 90 | 
| b = 69.688 | β = 98.8 | 
| c = 271.923 | γ = 90 | 
| Symmetry | |
|---|---|
| Space Group | P 1 21 1 | 
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 | MARMOSAIC 225 mm CCD | Beryllium lenses | 2013-03-15 | M | SINGLE WAVELENGTH | |||||
| Radiation Source | |||||
|---|---|---|---|---|---|
| ID # | Source | Type | Wavelength List | Synchrotron Site | Beamline | 
| 1 | SYNCHROTRON | APS BEAMLINE 21-ID-F | 0.97872 | APS | 21-ID-F | 
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 | 2.85 | 30 | 100 | 0.086 | 15.5 | 3.8 | 127301 | 127301 | -3 | 75.3 | |||||||||
| 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 | 2.85 | 2.9 | 100 | 0.637 | 2 | 3.8 | 6384 | ||||||||||||
Refinement
| Statistics | |||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Diffraction ID | Structure Solution Method | Cross Validation method | Starting model | Resolution (High) | Resolution (Low) | Number Reflections (All) | Number Reflections (Observed) | Number Reflections (R-Free) | Percent Reflections (Observed) | R-Factor (All) | R-Factor (Observed) | R-Work (Depositor) | R-Work (DCC) | R-Free (Depositor) | R-Free (DCC) | R-Free Selection Details | Mean Isotropic B | ||
| X-RAY DIFFRACTION | MOLECULAR REPLACEMENT | THROUGHOUT | 1S7C | 2.85 | 29.91 | 120750 | 120750 | 6389 | 99.8 | 0.18774 | 0.18774 | 0.18582 | 0.18 | 0.2235 | 0.22 | RANDOM | 74.416 | ||
| 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 | -1.03 | 1.44 | 0.42 | |||
| RMS Deviations | |
|---|---|
| Key | Refinement Restraint Deviation | 
| r_dihedral_angle_2_deg | 32.67 | 
| r_dihedral_angle_4_deg | 17.904 | 
| r_long_range_B_refined | 9.968 | 
| r_long_range_B_other | 9.952 | 
| r_dihedral_angle_3_deg | 9.892 | 
| r_scangle_other | 7.667 | 
| r_mcangle_it | 5.884 | 
| r_mcangle_other | 5.884 | 
| r_scbond_it | 5.412 | 
| r_scbond_other | 5.365 | 
| Non-Hydrogen Atoms Used in Refinement | |
|---|---|
| Non-Hydrogen Atoms | Number | 
| Protein Atoms | 39992 | 
| Nucleic Acid Atoms | |
| Solvent Atoms | 443 | 
| Heterogen Atoms | 540 | 
Software
| Software | |
|---|---|
| Software Name | Purpose | 
| Blu-Ice | data collection | 
| PHASER | phasing | 
| REFMAC | refinement | 
| HKL-3000 | data reduction | 
| HKL-3000 | data scaling | 














