3LBW

High resolution crystal structure of transmembrane domain of M2


X-RAY DIFFRACTION

Crystallization

Crystalization Experiments
IDMethodpHTemperatureDetails
1VAPOR DIFFUSION, HANGING DROP6.5Protein solution: 0.8mM M2TM (25-46) peptide (as monomer),28mM Octyl-beta-D-Glucopyranosie and 5% xylitol. Reservoir solution: 95% [100mM sodium citrate pH 5.6, 150mM tri-sodium citrate, 15% v/v isopropanol] and 5% [0.2M MgCl2 6H20, 0.1M Tris-Hcl pH 8.5, 30% w/v PEG 4000], VAPOR DIFFUSION, HANGING DROP
Crystal Properties
Matthews coefficientSolvent content
2.3848.34

Crystal Data

Unit Cell
Length ( Å )Angle ( ˚ )
a = 48.665α = 90
b = 79.091β = 90
c = 48.559γ = 90
Symmetry
Space GroupC 2 2 21

Diffraction

Diffraction Experiment
ID #Crystal IDScattering TypeData Collection TemperatureDetectorDetector TypeDetailsCollection DateMonochromatorProtocol
11x-ray100CCDADSC QUANTUM 2102008-04-25MSINGLE WAVELENGTH
Radiation Source
ID #SourceTypeWavelength ListSynchrotron SiteBeamline
1SYNCHROTRONNSLS BEAMLINE X6A0.91910NSLSX6A

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
11.6548.5699.50.0719.46.611567115091115.278
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)
11.651.7496.60.4472.74.51599

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-Factor (All)R-Factor (Observed)R-WorkR-FreeR-Free Selection DetailsMean Isotropic B
X-RAY DIFFRACTIONMOLECULAR REPLACEMENTTHROUGHOUT3BKD, chain A1.6531.5310998109985541000.2070.196640.196210.20529RANDOM15.431
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]
-0.160.140.02
RMS Deviations
KeyRefinement Restraint Deviation
r_dihedral_angle_2_deg53.922
r_dihedral_angle_4_deg19.336
r_dihedral_angle_3_deg11.004
r_dihedral_angle_1_deg2.858
r_scangle_it2.043
r_scbond_it1.229
r_angle_refined_deg0.866
r_mcangle_it0.806
r_mcbond_it0.455
r_chiral_restr0.054
RMS Deviations
KeyRefinement Restraint Deviation
r_dihedral_angle_2_deg53.922
r_dihedral_angle_4_deg19.336
r_dihedral_angle_3_deg11.004
r_dihedral_angle_1_deg2.858
r_scangle_it2.043
r_scbond_it1.229
r_angle_refined_deg0.866
r_mcangle_it0.806
r_mcbond_it0.455
r_chiral_restr0.054
r_bond_refined_d0.007
r_gen_planes_refined0.003
r_bond_other_d
r_angle_other_deg
r_gen_planes_other
r_nbd_refined
r_nbd_other
r_nbtor_refined
r_nbtor_other
r_xyhbond_nbd_refined
r_xyhbond_nbd_other
r_metal_ion_refined
r_metal_ion_other
r_symmetry_vdw_refined
r_symmetry_vdw_other
r_symmetry_hbond_refined
r_symmetry_hbond_other
r_symmetry_metal_ion_refined
r_symmetry_metal_ion_other
r_mcbond_other
r_rigid_bond_restr
r_sphericity_free
r_sphericity_bonded
Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen AtomsNumber
Protein Atoms696
Nucleic Acid Atoms
Solvent Atoms23
Heterogen Atoms67

Software

Software
Software NamePurpose
CBASSdata collection
PHASERphasing
REFMACrefinement
MOSFLMdata reduction
SCALAdata scaling