6VT2

Sialic acid binding region of Streptococcus sanguinis SK1 adhesin bound to sTa


X-RAY DIFFRACTION

Starting Model(s)

Initial Refinement Model(s)
TypeSourceAccession CodeDetails
experimental modelPDB 6VS7 

Crystallization

Crystalization Experiments
IDMethodpHTemperatureDetails
1VAPOR DIFFUSION, HANGING DROP7.6298Protein concentration: 72 mg/mL, Protein buffer: 150 mM NaCl, 20 mM tris pH 7.6, Reservoir solution: 20% (w/v) PEG 3350, 0.2 M MgSO4, 0.01 M SrCl2. Crystals were soaked with 10 mM sTa and cryoprotected with 40% (1:1 ethylene glycol: glycerol) and 60% reservoir solution
Crystal Properties
Matthews coefficientSolvent content
2.9658.5

Crystal Data

Unit Cell
Length ( Å )Angle ( ˚ )
a = 82.213α = 90
b = 269.859β = 90
c = 47.511γ = 90
Symmetry
Space GroupP 21 21 2

Diffraction

Diffraction Experiment
ID #Crystal IDScattering TypeData Collection TemperatureDetectorDetector TypeDetailsCollection DateMonochromatorProtocol
11x-ray100CCDRAYONIX MX-3002017-12-05MSINGLE WAVELENGTH
Radiation Source
ID #SourceTypeWavelength ListSynchrotron SiteBeamline
1SYNCHROTRONAPS BEAMLINE 21-ID-F0.97946APS21-ID-F

Data Collection

Overall
ID #Resolution (High)Resolution (Low)Percent Possible (Observed)R Sym 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
11.525093.10.06726.64.314896014.52
Highest Resolution Shell
ID #Resolution (High)Resolution (Low)Percent Possible (All)Percent Possible (Observed)CC (Half)Mean I Over Sigma (Observed)RedundancyNumber Unique Reflections (All)
11.551.58610.7232.8

Refinement

Statistics
Diffraction IDStructure Solution MethodCross Validation methodStarting modelResolution (High)Resolution (Low)Cut-off Sigma (F)Number Reflections (Observed)Number Reflections (R-Free)Percent Reflections (Observed)R-Factor (Observed)R-WorkR-FreeMean Isotropic B
X-RAY DIFFRACTIONMOLECULAR REPLACEMENTFREE R-VALUE6VS71.5235.661.34148500736191.150.17780.1770.19318.83
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
f_dihedral_angle_d20.7985
f_angle_d1.6349
f_chiral_restr0.0974
f_bond_d0.0216
f_plane_restr0.0119
Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen AtomsNumber
Protein Atoms6271
Nucleic Acid Atoms
Solvent Atoms1692
Heterogen Atoms163

Software

Software
Software NamePurpose
PHENIXrefinement
Cootmodel building
HKL-2000data scaling
PHASERphasing
HKL-2000data reduction