1OK9

Decay accelerating factor (CD55): The structure of an intact human complement regulator.


X-RAY DIFFRACTION

Starting Model(s)

Initial Refinement Model(s)
TypeSourceAccession CodeDetails
experimental modelPDB 1OJVPDB ENTRY 1OJV

Crystallization

Crystalization Experiments
IDMethodpHTemperatureDetails
14.60.2 M AMMONIUM SULPHATE, 20% M-PEG 5K, 0.1M SODIUM ACETATE PH 4.6, 16% GLYCEROL THEN SOAKED IN 2 MM K2PTCL4 FOR 6 DAYS
Crystal Properties
Matthews coefficientSolvent content
2.5550

Crystal Data

Unit Cell
Length ( Å )Angle ( ˚ )
a = 46.13α = 87.19
b = 54.6β = 85.61
c = 62.77γ = 65.74
Symmetry
Space GroupP 1

Diffraction

Diffraction Experiment
ID #Crystal IDScattering TypeData Collection TemperatureDetectorDetector TypeDetailsCollection DateMonochromatorProtocol
11x-ray100CCDADSC CCD2002-05-18MSINGLE WAVELENGTH
Radiation Source
ID #SourceTypeWavelength ListSynchrotron SiteBeamline
1SYNCHROTRONSRS BEAMLINE PX14.2SRSPX14.2

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
1341.9930.0539.13.8103722.1
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)
133.1692.70.1145.8

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 (All)R-WorkR-FreeR-Free Selection DetailsMean Isotropic B
X-RAY DIFFRACTIONMOLECULAR REPLACEMENTTHROUGHOUTPDB ENTRY 1OJV3201033810338930.24RANDOM
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
KeyRefinement Restraint Deviation
t_dihedral_angle_d21.3
t_it0.752
t_angle_deg0.611
t_nbd0.045
t_gen_planes0.011
t_trig_c_planes0.005
t_bond_d0.004
t_incorr_chiral_ct
t_pseud_angle
t_omega_torsion
RMS Deviations
KeyRefinement Restraint Deviation
t_dihedral_angle_d21.3
t_it0.752
t_angle_deg0.611
t_nbd0.045
t_gen_planes0.011
t_trig_c_planes0.005
t_bond_d0.004
t_incorr_chiral_ct
t_pseud_angle
t_omega_torsion
t_other_torsion
t_improper_torsion
t_chiral_improper_torsion
t_sum_occupancies
t_utility_distance
t_utility_angle
t_utility_torsion
t_ideal_dist_contact
Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen AtomsNumber
Protein Atoms3938
Nucleic Acid Atoms
Solvent Atoms9
Heterogen Atoms44

Software

Software
Software NamePurpose
TNTrefinement
MOSFLMdata reduction
SCALAdata scaling
MOLREPphasing