1RTX

Crystal Structure of Synechocystis Hemoglobin with a Covalent Heme Linkage


X-RAY DIFFRACTION

Crystallization

Crystalization Experiments
IDMethodpHTemperatureDetails
1VAPOR DIFFUSION, HANGING DROP6.527730% PEG MME 5000, 0.2M ammonium sulfate, 0.01 cadmium chloride, 0.1M MES, 0.01M potassium phosphate, pH 6.5, VAPOR DIFFUSION, HANGING DROP, temperature 277K
Crystal Properties
Matthews coefficientSolvent content
2.1743.23

Crystal Data

Unit Cell
Length ( Å )Angle ( ˚ )
a = 42.5α = 90
b = 46β = 90
c = 61γ = 90
Symmetry
Space GroupP 21 21 21

Diffraction

Diffraction Experiment
ID #Crystal IDScattering TypeData Collection TemperatureDetectorDetector TypeDetailsCollection DateMonochromatorProtocol
11x-ray100CCDADSC QUANTUM 41M RH COATED BENT CYLINDRICAL M2002-12-03MMAD
21x-ray100IMAGE PLATERIGAKU RAXIS IVOsmic confocal2002-01-20MSINGLE WAVELENGTH
1,21
Radiation Source
ID #SourceTypeWavelength ListSynchrotron SiteBeamline
1SYNCHROTRONSSRL BEAMLINE BL1-51.737570, 1.239793, 1.739925SSRLBL1-5
2ROTATING ANODERIGAKU RU200

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
1,21.836.7697.20.0481092210617
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)
1,21.81.8578.80.211

Refinement

Statistics
Diffraction IDStructure Solution MethodCross Validation methodResolution (High)Resolution (Low)Number Reflections (All)Number Reflections (Observed)Number Reflections (R-Free)Percent Reflections (Observed)R-Factor (All)R-Factor (Observed)R-WorkR-FreeR-Free Selection DetailsMean Isotropic B
X-RAY DIFFRACTIONMADTHROUGHOUT1.836.76109221061764997.20.2180.2180.2180.224RANDOM33.64
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]
-0.19-1.451.64
RMS Deviations
KeyRefinement Restraint Deviation
r_dihedral_angle_1_deg5.774
r_angle_refined_deg3.956
r_scangle_it3.582
r_scbond_it2.312
r_mcangle_it1.469
r_mcbond_it0.823
r_nbd_refined0.242
r_symmetry_vdw_refined0.213
r_xyhbond_nbd_refined0.182
r_symmetry_hbond_refined0.142
RMS Deviations
KeyRefinement Restraint Deviation
r_dihedral_angle_1_deg5.774
r_angle_refined_deg3.956
r_scangle_it3.582
r_scbond_it2.312
r_mcangle_it1.469
r_mcbond_it0.823
r_nbd_refined0.242
r_symmetry_vdw_refined0.213
r_xyhbond_nbd_refined0.182
r_symmetry_hbond_refined0.142
r_chiral_restr0.095
r_bond_refined_d0.012
r_gen_planes_refined0.011
Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen AtomsNumber
Protein Atoms969
Nucleic Acid Atoms
Solvent Atoms79
Heterogen Atoms51

Software

Software
Software NamePurpose
d*TREKdata scaling
d*TREKdata reduction
REFMACrefinement
SOLVEphasing
RESOLVEphasing