5HIM

Crystal structure of glycine sarcosine N-methyltransferase from Methanohalophilus portucalensis in complex with S-adenosylhomocysteine and dimethylglycine


X-RAY DIFFRACTION

Starting Model(s)

Initial Refinement Model(s)
TypeSourceAccession CodeDetails
experimental modelPDB 1XVAPDB ENTRY 1XVA

Crystallization

Crystalization Experiments
IDMethodpHTemperatureDetails
1VAPOR DIFFUSION, HANGING DROP277.15Protein solution: GSMT (6.6 mg/ml) in 100 mM TES pH 7.3, 2 M KCl, 1 mM EDTA, 1 mM 2-Mercaptoethanol, 0.1 mM SAH and 0.2 M betaine. Crystallization reagent: 0.1 M Tris-HCl pH 8.5 and 1.5 M sodium chloride. SAH and dimethylglycine were soaked into crystals before data collection.
Crystal Properties
Matthews coefficientSolvent content
3.1661.1

Crystal Data

Unit Cell
Length ( Å )Angle ( ˚ )
a = 51.975α = 90
b = 121.219β = 90
c = 131.686γ = 90
Symmetry
Space GroupI 2 2 2

Diffraction

Diffraction Experiment
ID #Crystal IDScattering TypeData Collection TemperatureDetectorDetector TypeDetailsCollection DateMonochromatorProtocol
11x-ray100CCDADSC QUANTUM 2102012-04-19MSINGLE WAVELENGTH
Radiation Source
ID #SourceTypeWavelength ListSynchrotron SiteBeamline
1SYNCHROTRONNSRRC BEAMLINE BL13C10.97622NSRRCBL13C1

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
12.338301000.07820.65.917982
Highest Resolution Shell
ID #Resolution (High)Resolution (Low)Percent Possible (All)Percent Possible (Observed)Mean I Over Sigma (Observed)RedundancyNumber Unique Reflections (All)
12.3382.421003.86

Refinement

Statistics
Diffraction IDStructure Solution MethodCross Validation methodStarting modelResolution (High)Resolution (Low)Cut-off Sigma (F)Number Reflections (Observed)Number Reflections (R-Free)Percent Reflections (Observed)R-Factor (Observed)R-WorkR-FreeR-Free Selection DetailsMean Isotropic B
X-RAY DIFFRACTIONMOLECULAR REPLACEMENTFREE R-VALUEPDB ENTRY 1XVA2.33827.5291.351798089199.590.15860.1560.207Random selection
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_d14.566
f_angle_d1.001
f_chiral_restr0.039
f_bond_d0.008
f_plane_restr0.004
Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen AtomsNumber
Protein Atoms1955
Nucleic Acid Atoms
Solvent Atoms78
Heterogen Atoms57

Software

Software
Software NamePurpose
PHENIXrefinement
Blu-Icedata collection
HKL-2000data scaling
HKL-2000data processing
PHENIXmodel building