1XZ4
Intersubunit Interactions Associated with Tyr42alpha Stabilize the Quaternary-T Tetramer but are not Major Quaternary Constraints in Deoxyhemoglobin: alphaY42A deoxyhemoglobin no-salt
Experimental procedure
Experimental method | SINGLE WAVELENGTH |
Source type | ROTATING ANODE |
Source details | RIGAKU RU200 |
Temperature [K] | 298 |
Detector technology | AREA DETECTOR |
Collection date | 1996-09-30 |
Detector | SDMS |
Wavelength(s) | 1.5418 |
Spacegroup name | P 21 21 21 |
Unit cell lengths | 84.100, 111.900, 64.000 |
Unit cell angles | 90.00, 90.00, 90.00 |
Refinement procedure
Resolution | 10.000 - 2.000 |
R-factor | 0.18674 |
Rwork | 0.183 |
R-free | 0.22372 |
Structure solution method | MOLECULAR REPLACEMENT |
Starting model (for MR) | 1xz2 |
RMSD bond length | 0.020 |
RMSD bond angle | 1.890 |
Data reduction software | SDMS |
Data scaling software | SDMS |
Phasing software | X-PLOR |
Refinement software | REFMAC (5.0) |
Data quality characteristics
Overall | Outer shell | |
Low resolution limit [Å] | 50.000 | 2.130 |
High resolution limit [Å] | 1.980 | 1.980 |
Rmerge | 0.065 | 0.242 |
Number of reflections | 41133 | |
<I/σ(I)> | 9.8 | 1.7 |
Completeness [%] | 96.7 | 84.1 |
Redundancy | 6.5 | 2.9 |
Crystallization Conditions
crystal ID | method | pH | temperature | details |
1 | batch | 4.6 | 298 | 15% PEG 4000, 50 mM sodium acetate, 100 mM ammonium acetate, 3 mM sodium dithionite, 20 mg/ml Hb, pH 4.6, batch, temperature 298K |