4H8M

Crystal structure of a parallel 6-helix coiled coil CC-Hex-H24-A5/7C


X-RAY DIFFRACTION

Starting Model(s)

Initial Refinement Model(s)
TypeSourceAccession CodeDetails
experimental modelPDB 3R46PDB ENTRY 3R46

Crystallization

Crystalization Experiments
IDMethodpHTemperatureDetails
1VAPOR DIFFUSION, SITTING DROP7.529130 mM sodium fluoride, 30 mM sodium bromide, 30 mM sodium iodide, 50 mM sodium HEPES, 50 mM MOPS (acid) pH 7.5, 20 % PEG-MME 550 and 10 % PEG 20K, VAPOR DIFFUSION, SITTING DROP, temperature 291K
Crystal Properties
Matthews coefficientSolvent content
1.9235.95

Crystal Data

Unit Cell
Length ( Å )Angle ( ˚ )
a = 31.7α = 90
b = 31.7β = 90
c = 132.04γ = 120
Symmetry
Space GroupH 3

Diffraction

Diffraction Experiment
ID #Crystal IDScattering TypeData Collection TemperatureDetectorDetector TypeDetailsCollection DateMonochromatorProtocol
11x-rayCCDADSC QUANTUM 3152011-07-15MSINGLE WAVELENGTH
Radiation Source
ID #SourceTypeWavelength ListSynchrotron SiteBeamline
1SYNCHROTRONDIAMOND BEAMLINE I040.97DiamondI04

Data Collection

Overall
ID #Resolution (High)Resolution (Low)Percent Possible (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
11.42944.01391889078

Refinement

Statistics
Diffraction IDStructure Solution MethodStarting modelResolution (High)Resolution (Low)Cut-off Sigma (F)Number Reflections (All)Number Reflections (Observed)Number Reflections (R-Free)Percent Reflections (Observed)R-Factor (Observed)R-WorkR-FreeMean Isotropic B
X-RAY DIFFRACTIONMOLECULAR REPLACEMENTPDB ENTRY 3R461.429244.0130.018906879942195.790.19730.1970.2035
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]
0.10910.1091-0.2181
RMS Deviations
KeyRefinement Restraint Deviation
f_dihedral_angle_d11.683
f_angle_d0.573
f_chiral_restr0.048
f_bond_d0.002
f_plane_restr0.002
Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen AtomsNumber
Protein Atoms446
Nucleic Acid Atoms
Solvent Atoms56
Heterogen Atoms

Software

Software
Software NamePurpose
PHENIXrefinement