1RPS

Crystallographic Analysis of the Interaction of Nitric Oxide with Quaternary-T Human Hemoglobin. Hemoglobin exposed to NO under anerobic conditions


X-RAY DIFFRACTION

Crystallization

Crystalization Experiments
IDMethodpHTemperatureDetails
1729810 mg/mL human hemoglobin, 10 mM potassium phosphate, 100 mM potassium chloride, 10-12% PEG 6000, 3 mM sodium dithionite (under anaerobic conditions), BATCH METHOD, temperature 298K, pH 7
Crystal Properties
Matthews coefficientSolvent content
2.5652

Crystal Data

Unit Cell
Length ( Å )Angle ( ˚ )
a = 97α = 90
b = 99.3β = 90
c = 66.1γ = 90
Symmetry
Space GroupP 21 21 2

Diffraction

Diffraction Experiment
ID #Crystal IDScattering TypeData Collection TemperatureDetectorDetector TypeDetailsCollection DateMonochromatorProtocol
11x-ray298AREA DETECTORSDMS1998-06-20MSINGLE WAVELENGTH
Radiation Source
ID #SourceTypeWavelength ListSynchrotron SiteBeamline
1ROTATING ANODERIGAKU RU2001.5418

Data Collection

Overall
ID #Resolution (High)Resolution (Low)Percent Possible (Observed)R Merge I (Observed)Net I Over Average Sigma (I)RedundancyNumber Reflections (All)Number Reflections (Observed)Observed Criterion Sigma (F)Observed Criterion Sigma (I)B (Isotropic) From Wilson Plot
12.1139.84196.90.0948.16.33799637996
Highest Resolution Shell
ID #Resolution (High)Resolution (Low)Percent Possible (All)Percent Possible (Observed)R Merge I (Observed)Mean I Over Sigma (Observed)RedundancyNumber Unique Reflections (All)
2.112.2787.10.2721.52.6

Refinement

Statistics
Diffraction IDStructure Solution MethodCross Validation methodStarting modelResolution (High)Resolution (Low)Number Reflections (All)Number Reflections (Observed)Number Reflections (R-Free)Percent Reflections (Observed)R-Factor (Observed)R-WorkR-FreeR-Free Selection DetailsMean Isotropic B
X-RAY DIFFRACTIONMOLECULAR REPLACEMENTTHROUGHOUTpdb id 1RQ32.11103028830288344089.730.186480.181360.23217matched to that in PDB id 1RQ325.816
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]
-1.081.31-0.23
RMS Deviations
KeyRefinement Restraint Deviation
r_dihedral_angle_3_deg17.769
r_scangle_it3.831
r_dihedral_angle_1_deg3.651
r_scbond_it2.34
r_angle_refined_deg1.628
r_mcangle_it1.526
r_mcbond_it0.801
r_angle_other_deg0.793
r_nbd_refined0.247
r_xyhbond_nbd_refined0.206
RMS Deviations
KeyRefinement Restraint Deviation
r_dihedral_angle_3_deg17.769
r_scangle_it3.831
r_dihedral_angle_1_deg3.651
r_scbond_it2.34
r_angle_refined_deg1.628
r_mcangle_it1.526
r_mcbond_it0.801
r_angle_other_deg0.793
r_nbd_refined0.247
r_xyhbond_nbd_refined0.206
r_nbd_other0.194
r_symmetry_vdw_other0.175
r_symmetry_hbond_refined0.122
r_xyhbond_nbd_other0.111
r_chiral_restr0.094
r_symmetry_vdw_refined0.055
r_bond_refined_d0.022
r_gen_planes_refined0.006
r_gen_planes_other0.003
r_bond_other_d0.001
r_mcbond_other
r_nbtor_refined
r_symmetry_hbond_other
r_metal_ion_refined
r_metal_ion_other
r_nbtor_other
r_dihedral_angle_4_deg
r_dihedral_angle_2_deg
r_rigid_bond_restr
r_sphericity_free
r_sphericity_bonded
Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen AtomsNumber
Protein Atoms4384
Nucleic Acid Atoms
Solvent Atoms176
Heterogen Atoms180

Software

Software
Software NamePurpose
REFMACrefinement
SDMSdata reduction
SDMSdata scaling
X-PLORphasing