4M6E

The high resolution structure of tyrocidine A reveals an amphipathic dimer


X-RAY DIFFRACTION

Crystallization

Crystalization Experiments
IDMethodpHTemperatureDetails
1VAPOR DIFFUSION, SITTING DROP291tyrocidine in methanol at 30 mg/mL, reservoir methanol:MPD (1:5 v/v), VAPOR DIFFUSION, SITTING DROP, temperature 291K
Crystal Properties
Matthews coefficientSolvent content
2.1141.57

Crystal Data

Unit Cell
Length ( Å )Angle ( ˚ )
a = 33.39α = 90
b = 33.39β = 90
c = 50.57γ = 120
Symmetry
Space GroupH 3 2

Diffraction

Diffraction Experiment
ID #Crystal IDScattering TypeData Collection TemperatureDetectorDetector TypeDetailsCollection DateMonochromatorProtocol
11x-ray100CCDADSC QUANTUM 2702008-01-01MSINGLE WAVELENGTH
Radiation Source
ID #SourceTypeWavelength ListSynchrotron SiteBeamline
1SYNCHROTRONNSLS BEAMLINE X6A0.8984NSLSX6A

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
10.951998.80.044812.269736973-39.6

Refinement

Statistics
Diffraction IDStructure Solution MethodResolution (High)Resolution (Low)Number Reflections (All)Number Reflections (Observed)Number Reflections (R-Free)Percent Reflections (Observed)R-Factor (Observed)R-WorkR-FreeR-Free Selection DetailsMean Isotropic B
X-RAY DIFFRACTIONAB INITIO PHASING0.95196953695368598.50.13470.13390.1422random
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]
RMS Deviations
KeyRefinement Restraint Deviation
f_dihedral_angle_d15.476
f_angle_d1.787
f_chiral_restr0.081
f_bond_d0.017
f_plane_restr0.009
Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen AtomsNumber
Protein Atoms92
Nucleic Acid Atoms
Solvent Atoms5
Heterogen Atoms14

Software

Software
Software NamePurpose
ADSCdata collection
SnBphasing
PHENIXrefinement
XDSdata reduction
XDSdata scaling