2VXL

Screening a Limited Structure-based Library Identifies UDP-GalNAc- Specific Mutants of alpha-1,3 Galactosyltransferase


X-RAY DIFFRACTION

Starting Model(s)

Initial Refinement Model(s)
TypeSourceAccession CodeDetails
experimental modelPDB 2JCJPDB ENTRY 2JCJ

Crystallization

Crystalization Experiments
IDMethodpHTemperatureDetails
18PROTEIN: 5 MG/ML IN 20 MM MES-NAOH BUFFER, PH 6.0, 10% GLYCEROL, CONTAINING 10 MM MNCL2 AND 10 MM UDP-GALNAC MOTHER LIQUOR: 10-15% PEG 6000, 0.1 M TRIS-HCL, PH 8.0 AND 15-25% MPD
Crystal Properties
Matthews coefficientSolvent content
2.652.4

Crystal Data

Unit Cell
Length ( Å )Angle ( ˚ )
a = 70.197α = 90
b = 70.197β = 90
c = 126.991γ = 120
Symmetry
Space GroupP 31 2 1

Diffraction

Diffraction Experiment
ID #Crystal IDScattering TypeData Collection TemperatureDetectorDetector TypeDetailsCollection DateMonochromatorProtocol
11x-ray300CCDMARRESEARCHMIRROR2006-12-06MSINGLE WAVELENGTH
Radiation Source
ID #SourceTypeWavelength ListSynchrotron SiteBeamline
1SYNCHROTRONSRS BEAMLINE PX10.1SRSPX10.1

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
12.75099.70.1412.13.11162446.6
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)
12.72.8598.30.32.042.9

Refinement

Statistics
Diffraction IDStructure Solution MethodCross Validation methodStarting modelResolution (High)Resolution (Low)Number Reflections (Observed)Number Reflections (R-Free)Percent Reflections (Observed)R-WorkR-FreeR-Free Selection DetailsMean Isotropic B
X-RAY DIFFRACTIONMOLECULAR REPLACEMENTTHROUGHOUTPDB ENTRY 2JCJ2.743.911869055399.40.1920.26RANDOM26.9
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]
-6.41-6.4112.82
Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen AtomsNumber
Protein Atoms2300
Nucleic Acid Atoms
Solvent Atoms43
Heterogen Atoms26

Software

Software
Software NamePurpose
REFMACrefinement
MOSFLMdata reduction
SCALAdata scaling
MOLREPphasing