1SWN

CORE-STREPTAVIDIN MUTANT W108F IN COMPLEX WITH BIOTIN AT PH 7.0


X-RAY DIFFRACTION

Starting Model(s)

Initial Refinement Model(s)
TypeSourceAccession CodeDetails
experimental modelPDB 1SWAPDB ENTRY 1SWA

Crystallization

Crystalization Experiments
IDMethodpHTemperatureDetails
17pH 7.0
Crystal Properties
Matthews coefficientSolvent content
2.3748

Crystal Data

Unit Cell
Length ( Å )Angle ( ˚ )
a = 59.6α = 90
b = 88.7β = 98.8
c = 48γ = 90
Symmetry
Space GroupP 1 21 1

Diffraction

Diffraction Experiment
ID #Crystal IDScattering TypeData Collection TemperatureDetectorDetector TypeDetailsCollection DateMonochromatorProtocol
11x-ray295AREA DETECTORSIEMENS1996-11-21M
Radiation Source
ID #SourceTypeWavelength ListSynchrotron SiteBeamline
1ROTATING ANODERIGAKU RUH2R

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
12.3870.05613.8196961
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)
2.32.4350.333.1

Refinement

Statistics
Diffraction IDStructure Solution MethodCross Validation methodStarting modelResolution (High)Resolution (Low)Number Reflections (All)Number Reflections (R-Free)Percent Reflections (Observed)R-Factor (All)R-Factor (Observed)R-WorkR-FreeR-Free Selection DetailsMean Isotropic B
X-RAY DIFFRACTIONMOLECULAR REPLACEMENTRFREEPDB ENTRY 1SWA2.210194031943810.1810.1780.268EVERY 10TH REFLECTION
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
3315.53716
RMS Deviations
KeyRefinement Restraint Deviation
s_zero_chiral_vol0.078
s_non_zero_chiral_vol0.076
s_similar_adp_cmpnt0.026
s_angle_d0.02
s_from_restr_planes0.015
s_anti_bump_dis_restr0.015
s_bond_d0.005
s_similar_dist
s_rigid_bond_adp_cmpnt
s_approx_iso_adps
Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen AtomsNumber
Protein Atoms3510
Nucleic Acid Atoms
Solvent Atoms192
Heterogen Atoms48

Software

Software
Software NamePurpose
SHELXL-97model building
X-PLORmodel building
SHELXL-97refinement
X-PLORrefinement
SAINTdata reduction
SADABSdata scaling
SHELXL-97phasing
X-PLORphasing