3IRW

Structure of a c-di-GMP riboswitch from V. cholerae


X-RAY DIFFRACTION

Crystallization

Crystalization Experiments
IDMethodpHTemperatureDetails
1629822% PEG550mme, 50 mM MES, pH 6.0, 5 mM MgSO4, 300 mM NaCl, VAPOR DIFFUSION, HANGING DROP, temperature 298K
Crystal Properties
Matthews coefficientSolvent content
2.0640.15

Crystal Data

Unit Cell
Length ( Å )Angle ( ˚ )
a = 49.461α = 90
b = 45.123β = 96.79
c = 76.573γ = 90
Symmetry
Space GroupP 1 21 1

Diffraction

Diffraction Experiment
ID #Crystal IDScattering TypeData Collection TemperatureDetectorDetector TypeDetailsCollection DateMonochromatorProtocol
11x-ray100CCDADSC QUANTUM 315CRYOGENICALLY COOLED DOUBLE CRYSTAL MONOCHROMETER WITH HORIZONTAL FOCUSING SAGITTAL BEND SECOND MONO CRYSTAL WITH 4:1 MAGNIFICATION RATIO AND VERTICALLY FOCUSING MIRROR.2009-01-26MMAD
Radiation Source
ID #SourceTypeWavelength ListSynchrotron SiteBeamline
1SYNCHROTRONNSLS BEAMLINE X29A1.1050, 1.1054, 1.0762NSLSX29A

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
12.75094.80.07212.52.789351.9
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)
12.72.882.40.3821.92

Refinement

Statistics
Diffraction IDStructure Solution MethodCross Validation methodResolution (High)Resolution (Low)Number Reflections (Observed)Number Reflections (R-Free)Percent Reflections (Observed)R-Factor (Observed)R-WorkR-FreeR-Free Selection DetailsMean Isotropic B
X-RAY DIFFRACTIONMADTHROUGHOUT2.743.69849743994.80.1990.1960.251RANDOM50.651
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]
0.831.44-4.894.4
RMS Deviations
KeyRefinement Restraint Deviation
r_dihedral_angle_2_deg27.392
r_dihedral_angle_4_deg16.926
r_dihedral_angle_3_deg14.327
r_dihedral_angle_1_deg5.686
r_mcangle_it3.848
r_scangle_it3.102
r_mcbond_it2.12
r_scbond_it1.901
r_angle_refined_deg0.953
r_bond_refined_d0.006
RMS Deviations
KeyRefinement Restraint Deviation
r_dihedral_angle_2_deg27.392
r_dihedral_angle_4_deg16.926
r_dihedral_angle_3_deg14.327
r_dihedral_angle_1_deg5.686
r_mcangle_it3.848
r_scangle_it3.102
r_mcbond_it2.12
r_scbond_it1.901
r_angle_refined_deg0.953
r_bond_refined_d0.006
r_gen_planes_refined0.004
r_bond_other_d
r_angle_other_deg
r_chiral_restr
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 Atoms734
Nucleic Acid Atoms1961
Solvent Atoms92
Heterogen Atoms111

Software

Software
Software NamePurpose
CBASSdata collection
SOLVEphasing
REFMACrefinement
HKL-2000data reduction
HKL-2000data scaling