4HAF
Crystal structure of fc-fragment of human IgG2 antibody (primitive crystal form)
X-RAY DIFFRACTION
Starting Model(s)
Initial Refinement Model(s) | |||
---|---|---|---|
Type | Source | Accession Code | Details |
experimental model | PDB | 3AVE | PDB entry 3ave |
Crystallization
Crystalization Experiments | ||||
---|---|---|---|---|
ID | Method | pH | Temperature | Details |
1 | VAPOR DIFFUSION, SITTING DROP | 6.5 | 293 | 0.1 M MES, 9% PEG 4000, 0.2 M AMMONIUM CHLORIDE, 5% MPD CRYO CONDITIONS: 0.1 M MES, 12% PEG 4000, 0.2 M AMMONIUM CHLORIDE, 20% PEG 400, pH 6.5, VAPOR DIFFUSION, SITTING DROP, temperature 293K |
Crystal Properties | |
---|---|
Matthews coefficient | Solvent content |
2.7 | 54.52 |
Crystal Data
Unit Cell | |
---|---|
Length ( Å ) | Angle ( ˚ ) |
a = 49.5 | α = 90 |
b = 75.17 | β = 90 |
c = 146.01 | 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 | 100 | CCD | RIGAKU SATURN 944 | VARIMAX HF | 2010-03-19 | M | SINGLE WAVELENGTH |
Radiation Source | |||||
---|---|---|---|---|---|
ID # | Source | Type | Wavelength List | Synchrotron Site | Beamline |
1 | ROTATING ANODE | RIGAKU MICROMAX-007 HF |
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 | 2.04 | 27.7 | 98.7 | 0.085 | 18.7 | 6.7 | 35162 | 35162 | -3 | -3 | 26.8 |
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 | 2.04 | 2.09 | 83.9 | 0.357 | 3.1 | 2.6 |
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 | R-Free | R-Free Selection Details | Mean Isotropic B | ||||
X-RAY DIFFRACTION | MOLECULAR REPLACEMENT | THROUGHOUT | PDB entry 3ave | 2.04 | 15 | 34097 | 34097 | 970 | 96 | 0.20041 | 0.20041 | 0.19902 | 0.24819 | RANDOM | 35.1 |
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] | |
-0.69 | -0.24 | 0.93 |
RMS Deviations | |
---|---|
Key | Refinement Restraint Deviation |
r_dihedral_angle_2_deg | 33.759 |
r_scangle_it | 30.36 |
r_scbond_it | 27.505 |
r_dihedral_angle_4_deg | 15.524 |
r_dihedral_angle_3_deg | 14.008 |
r_dihedral_angle_1_deg | 5.794 |
r_mcangle_it | 5.104 |
r_mcbond_it | 3.233 |
r_angle_refined_deg | 1.189 |
r_chiral_restr | 0.077 |
Non-Hydrogen Atoms Used in Refinement | |
---|---|
Non-Hydrogen Atoms | Number |
Protein Atoms | 3183 |
Nucleic Acid Atoms | |
Solvent Atoms | 329 |
Heterogen Atoms | 99 |
Software
Software | |
---|---|
Software Name | Purpose |
CrystalClear | data collection |
PHASER | phasing |
REFMAC | refinement |
XDS | data reduction |
XDS | data scaling |