1MK5

Wildtype Core-Streptavidin with Biotin at 1.4A.


X-RAY DIFFRACTION

Crystallization

Crystalization Experiments
IDMethodpHTemperatureDetails
1VAPOR DIFFUSION, SITTING DROP4.5293ammonium sulphate, sodium acetate, sodium chloride, pH 4.5, VAPOR DIFFUSION, SITTING DROP, temperature 293K
Crystal Properties
Matthews coefficientSolvent content
1.8633.8

Crystal Data

Unit Cell
Length ( Å )Angle ( ˚ )
a = 46.305α = 90
b = 93.414β = 90
c = 103.931γ = 90
Symmetry
Space GroupI 2 2 2

Diffraction

Diffraction Experiment
ID #Crystal IDScattering TypeData Collection TemperatureDetectorDetector TypeDetailsCollection DateMonochromatorProtocol
11x-ray100CCDADSC QUANTUM 42001-10-01MSINGLE WAVELENGTH
Radiation Source
ID #SourceTypeWavelength ListSynchrotron SiteBeamline
1SYNCHROTRONALS BEAMLINE 5.0.11.00ALS5.0.1

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
11.45098.80.04330.58.74417144171-3
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)
1.41.4593.40.24.5

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-Factor (Observed)R-WorkR-FreeR-Free Selection DetailsMean Isotropic B
X-RAY DIFFRACTIONISOMORPHOUSFREE R1DF81.4104402044020220198.70.12790.12790.189RANDOM
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]
Coordinate Error
Structure Solution MethodRefinement High ResolutionRefinement Low Resolution
1216902069
RMS Deviations
KeyRefinement Restraint Deviation
s_approx_iso_adps0.091
s_non_zero_chiral_vol0.072
s_zero_chiral_vol0.059
s_similar_adp_cmpnt0.051
s_anti_bump_dis_restr0.04
s_from_restr_planes0.0322
s_angle_d0.032
s_bond_d0.012
s_rigid_bond_adp_cmpnt0.003
s_similar_dist
Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen AtomsNumber
Protein Atoms1844
Nucleic Acid Atoms
Solvent Atoms239
Heterogen Atoms32

Software

Software
Software NamePurpose
DENZOdata reduction
SCALEPACKdata scaling
SHELXL-97refinement