3C8C

Crystal structure of Mcp_N and cache domains of methyl-accepting chemotaxis protein from Vibrio cholerae


X-RAY DIFFRACTION

Crystallization

Crystalization Experiments
IDMethodpHTemperatureDetails
16.5100mM Sodium cacodylate pH 6.5, 200mM Sodium acetate, 30% PEG 8000, 10% Glycerol, VAPOR DIFFUSION, SITTING DROP, TEMPERATURE 294K
Crystal Properties
Matthews coefficientSolvent content
2.2244.58

Crystal Data

Unit Cell
Length ( Å )Angle ( ˚ )
a = 103.202α = 90
b = 140.942β = 90
c = 32.221γ = 90
Symmetry
Space GroupP 21 21 2

Diffraction

Diffraction Experiment
ID #Crystal IDScattering TypeData Collection TemperatureDetectorDetector TypeDetailsCollection DateMonochromatorProtocol
11x-ray77CCDMAR CCD 165 mm2008-02-08MSINGLE WAVELENGTH
Radiation Source
ID #SourceTypeWavelength ListSynchrotron SiteBeamline
1SYNCHROTRONAPS BEAMLINE 31-ID0.9796APS31-ID

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
11.4620.1496.10.10813.113.781575-516.86
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)
1.461.5495.60.922.411.8

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 DIFFRACTIONSADTHROUGHOUT1.52074206230799.940.194950.193720.23452RANDOM22.399
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]
-0.51-0.621.13
RMS Deviations
KeyRefinement Restraint Deviation
r_dihedral_angle_2_deg40.328
r_dihedral_angle_3_deg15.087
r_dihedral_angle_4_deg13.295
r_scangle_it6.842
r_dihedral_angle_1_deg5.092
r_scbond_it4.519
r_mcangle_it3.762
r_mcbond_it2.905
r_angle_refined_deg1.285
r_nbtor_refined0.301
RMS Deviations
KeyRefinement Restraint Deviation
r_dihedral_angle_2_deg40.328
r_dihedral_angle_3_deg15.087
r_dihedral_angle_4_deg13.295
r_scangle_it6.842
r_dihedral_angle_1_deg5.092
r_scbond_it4.519
r_mcangle_it3.762
r_mcbond_it2.905
r_angle_refined_deg1.285
r_nbtor_refined0.301
r_nbd_refined0.175
r_xyhbond_nbd_refined0.168
r_symmetry_hbond_refined0.157
r_symmetry_vdw_refined0.115
r_chiral_restr0.09
r_bond_refined_d0.01
r_gen_planes_refined0.005
r_bond_other_d
r_angle_other_deg
r_gen_planes_other
r_nbd_other
r_nbtor_other
r_xyhbond_nbd_other
r_metal_ion_refined
r_metal_ion_other
r_symmetry_vdw_other
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 Atoms3972
Nucleic Acid Atoms
Solvent Atoms653
Heterogen Atoms2

Software

Software
Software NamePurpose
SHELXmodel building
REFMACrefinement
MAR345data collection
HKL-2000data reduction
HKL-2000data scaling
SHELXDphasing