6KAU
Carbonmonoxy human hemoglobin A in the R2 quaternary structure at 140 K: Dark
X-RAY DIFFRACTION
Starting Model(s)
Initial Refinement Model(s) | |||
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Type | Source | Accession Code | Details |
experimental model | PDB | 1BBB |
Crystallization
Crystalization Experiments | ||||
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ID | Method | pH | Temperature | Details |
1 | MICROBATCH | 5.8 | 293 | 18%w/v PEG6000, 100 mM sodium cacodylate-hydrochloride buffer, 10%v/v glycerol |
Crystal Properties | |
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Matthews coefficient | Solvent content |
2.38 | 48.32 |
Crystal Data
Unit Cell | |
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Length ( Å ) | Angle ( ˚ ) |
a = 61.124 | α = 90 |
b = 96.436 | β = 90 |
c = 100.263 | γ = 90 |
Symmetry | |
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Space Group | P 21 21 21 |
Diffraction
Diffraction Experiment | ||||||||||||||
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ID # | Crystal ID | Scattering Type | Data Collection Temperature | Detector | Detector Type | Details | Collection Date | Monochromator | Protocol | |||||
1 | 1 | x-ray | 140 | PIXEL | DECTRIS PILATUS3 2M | 2018-11-23 | M | SINGLE WAVELENGTH |
Radiation Source | |||||
---|---|---|---|---|---|
ID # | Source | Type | Wavelength List | Synchrotron Site | Beamline |
1 | SYNCHROTRON | PHOTON FACTORY BEAMLINE AR-NW12A | 1.00 | Photon Factory | AR-NW12A |
Data Collection
Overall | |||||||||||||||||||
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ID # | Resolution (High) | Resolution (Low) | Percent Possible (Observed) | R Merge I (Observed) | Rrim I (All) | Rpim I (All) | CC (Half) | 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 | 1.6 | 19.77 | 97.7 | 0.081 | 0.089 | 0.034 | 0.997 | 14.1 | 6.5 | 76895 | 16.71 |
Highest Resolution Shell | |||||||||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
ID # | Resolution (High) | Resolution (Low) | Percent Possible (All) | Percent Possible (Observed) | R Merge I (Observed) | Rrim I (All) | Rpim I (All) | CC (Half) | Mean I Over Sigma (Observed) | Redundancy | Number Unique Reflections (All) | ||||||||
1 | 1.6 | 1.66 | 94.3 | 0.622 | 0.672 | 0.253 | 0.894 | 6.7 |
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 | Mean Isotropic B | ||||||
X-RAY DIFFRACTION | MOLECULAR REPLACEMENT | THROUGHOUT | 1BBB | 1.6 | 19.767 | 1.33 | 76827 | 3856 | 97.52 | 0.1794 | 0.1776 | 0.213 | 21.5997 |
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 |
f_dihedral_angle_d | 12.973 |
f_angle_d | 1.002 |
f_chiral_restr | 0.038 |
f_bond_d | 0.006 |
f_plane_restr | 0.006 |
Non-Hydrogen Atoms Used in Refinement | |
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Non-Hydrogen Atoms | Number |
Protein Atoms | 4384 |
Nucleic Acid Atoms | |
Solvent Atoms | 458 |
Heterogen Atoms | 180 |
Software
Software | |
---|---|
Software Name | Purpose |
Aimless | data scaling |
PHENIX | refinement |
PDB_EXTRACT | data extraction |
CrysalisPro | data reduction |
PDBSET | phasing |