1VCR

An icosahedral assembly of light-harvesting chlorophyll a/b protein complex from pea thylakoid membranes


X-RAY DIFFRACTION

Starting Model(s)

Initial Refinement Model(s)
TypeSourceAccession CodeDetails
experimental modelOtherPersonal communication with Prof. W. Kuhlbrandt. Nature 367, 614-621, (1994)

Crystallization

Crystalization Experiments
IDMethodpHTemperatureDetails
1VAPOR DIFFUSION, HANGING DROP7288Potassium chloride, PEG4000, Xylitol, HEPES, pH 7.0, VAPOR DIFFUSION, HANGING DROP, temperature 288K

Crystal Data

Unit Cell
Length ( Å )Angle ( ˚ )
a = 360.646α = 90
b = 360.646β = 90
c = 360.646γ = 90
Symmetry
Space GroupF 2 3

Diffraction

Diffraction Experiment
ID #Crystal IDScattering TypeData Collection TemperatureDetectorDetector TypeDetailsCollection DateMonochromatorProtocol
11x-ray100CCDMARRESEARCH2000-05-22MSINGLE WAVELENGTH
21
31
Radiation Source
ID #SourceTypeWavelength ListSynchrotron SiteBeamline
1SYNCHROTRONSPRING-8 BEAMLINE BL41XU1.000SPring-8BL41XU
2SYNCHROTRONSPRING-8 BEAMLINE BL38B11.000SPring-8BL38B1
3SYNCHROTRONSPRING-8 BEAMLINE BL40B21.000SPring-8BL40B2

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
19.550099.90.0853825342532296
Highest Resolution Shell
ID #Resolution (High)Resolution (Low)Percent Possible (All)Percent Possible (Observed)R Merge I (Observed)R-Sym I (Observed)Mean I Over Sigma (Observed)RedundancyNumber Unique Reflections (All)
9.510.199.90.4990.4991.58.3

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-WorkR-FreeR-Free Selection DetailsMean Isotropic B
X-RAY DIFFRACTIONMOLECULAR REPLACEMENTTHROUGHOUTPersonal communication with Prof. W. Kuhlbrandt. Nature 367, 614-621, (1994)9.5202241193518886.30.3790.353RANDOM296
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]
Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen AtomsNumber
Protein Atoms496
Nucleic Acid Atoms
Solvent Atoms
Heterogen Atoms300

Software

Software
Software NamePurpose
MOSFLMdata reduction
SCALAdata scaling
CNSrefinement
CCP4data scaling
CNSphasing