3EWT

Crystal Structure of calmodulin complexed with a peptide


X-RAY DIFFRACTION

Starting Model(s)

Initial Refinement Model(s)
TypeSourceAccession CodeDetails
experimental modelPDB 1L7Z 

Crystallization

Crystalization Experiments
IDMethodpHTemperatureDetails
1EVAPORATION5.529325%(w/v) PEG8000, 0.2M Sodium Acetate, 0.1M Sodium cacodylate, pH 5.5, EVAPORATION, temperature 293K
Crystal Properties
Matthews coefficientSolvent content
238.35

Crystal Data

Unit Cell
Length ( Å )Angle ( ˚ )
a = 40.062α = 90
b = 40.062β = 90
c = 174.431γ = 120
Symmetry
Space GroupP 32 2 1

Diffraction

Diffraction Experiment
ID #Crystal IDScattering TypeData Collection TemperatureDetectorDetector TypeDetailsCollection DateMonochromatorProtocol
11x-ray113IMAGE PLATERIGAKU RAXIS IV++2006-09-22MSINGLE WAVELENGTH
Radiation Source
ID #SourceTypeWavelength ListSynchrotron SiteBeamline
1ROTATING ANODERIGAKU1.5418

Data Collection

Overall
ID #Resolution (High)Resolution (Low)Percent Possible (Observed)R Merge I (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
12.42099.60.0420.0418.6694622
Highest Resolution Shell
ID #Resolution (High)Resolution (Low)Percent Possible (All)Percent Possible (Observed)Mean I Over Sigma (Observed)RedundancyNumber Unique Reflections (All)
12.42.4697.3

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 REPLACEMENTTHROUGHOUT1L7Z2.419.96575657531299.80.218590.218590.216640.25916RANDOM35.709
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]
0.730.360.73-1.09
RMS Deviations
KeyRefinement Restraint Deviation
r_dihedral_angle_2_deg37.661
r_dihedral_angle_3_deg20.238
r_dihedral_angle_4_deg16.376
r_dihedral_angle_1_deg5.293
r_scangle_it3.023
r_scbond_it1.7
r_mcangle_it1.499
r_angle_refined_deg1.384
r_mcbond_it0.916
r_nbtor_refined0.301
RMS Deviations
KeyRefinement Restraint Deviation
r_dihedral_angle_2_deg37.661
r_dihedral_angle_3_deg20.238
r_dihedral_angle_4_deg16.376
r_dihedral_angle_1_deg5.293
r_scangle_it3.023
r_scbond_it1.7
r_mcangle_it1.499
r_angle_refined_deg1.384
r_mcbond_it0.916
r_nbtor_refined0.301
r_symmetry_vdw_refined0.268
r_nbd_refined0.24
r_symmetry_hbond_refined0.185
r_xyhbond_nbd_refined0.128
r_chiral_restr0.11
r_metal_ion_refined0.097
r_bond_refined_d0.011
r_gen_planes_refined0.004
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_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 Atoms1227
Nucleic Acid Atoms
Solvent Atoms44
Heterogen Atoms4

Software

Software
Software NamePurpose
CrystalCleardata collection
MOLREPphasing
REFMACrefinement
DENZOdata reduction
SCALEPACKdata scaling