1SWK

CORE-STREPTAVIDIN MUTANT W79F IN COMPLEX WITH BIOTIN AT PH 4.5


X-RAY DIFFRACTION

Starting Model(s)

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

Crystallization

Crystalization Experiments
IDMethodpHTemperatureDetails
14.5pH 4.5
Crystal Properties
Matthews coefficientSolvent content
2.7455.17

Crystal Data

Unit Cell
Length ( Å )Angle ( ˚ )
a = 59.3α = 90
b = 64.6β = 93
c = 76γ = 90
Symmetry
Space GroupP 1 21 1

Diffraction

Diffraction Experiment
ID #Crystal IDScattering TypeData Collection TemperatureDetectorDetector TypeDetailsCollection DateMonochromatorProtocol
11x-ray295IMAGE PLATERIGAKU RAXIS IIMSC MIRRORS1996-10-30M
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
1243.1970.086.9380171
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)
22.1870.292.7

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 1SWA210381073782970.1860.1840.238EVERY 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
32643767
RMS Deviations
KeyRefinement Restraint Deviation
s_zero_chiral_vol0.098
s_non_zero_chiral_vol0.093
s_similar_adp_cmpnt0.079
s_angle_d0.024
s_from_restr_planes0.017
s_anti_bump_dis_restr0.013
s_bond_d0.007
s_similar_dist
s_rigid_bond_adp_cmpnt
s_approx_iso_adps
Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen AtomsNumber
Protein Atoms3488
Nucleic Acid Atoms
Solvent Atoms221
Heterogen Atoms64

Software

Software
Software NamePurpose
SHELXL-97model building
X-PLORmodel building
SHELXL-97refinement
X-PLORrefinement
DENZOdata reduction
SCALEPACKdata scaling
SHELXL-97phasing
X-PLORphasing