4EXZ

Crystal Structure of the Q108K:K40L Mutant of Cellular Retinol Binding Protein Type II in Complex with All-trans-Retinal at 1.7 Angstrom Resolution


X-RAY DIFFRACTION

Starting Model(s)

Initial Refinement Model(s)
TypeSourceAccession CodeDetails
experimental modelPDB 2RCQPDB ENTRY 2RCQ

Crystallization

Crystal Properties
Matthews coefficientSolvent content
2.0239.06

Crystal Data

Unit Cell
Length ( Å )Angle ( ˚ )
a = 29.814α = 90.83
b = 35.944β = 92.88
c = 63.975γ = 113.19
Symmetry
Space GroupP 1

Diffraction

Diffraction Experiment
ID #Crystal IDScattering TypeData Collection TemperatureDetectorDetector TypeDetailsCollection DateMonochromatorProtocol
11x-ray100CCDMARMOSAIC 300 mm CCDMSINGLE WAVELENGTH
Radiation Source
ID #SourceTypeWavelength ListSynchrotron SiteBeamline
1SYNCHROTRONAPS BEAMLINE 21-ID-D1.1272APS21-ID-D

Data Collection

Overall
ID #Resolution (High)Resolution (Low)Percent Possible (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
11.60833.01627686

Refinement

Statistics
Diffraction IDStructure Solution MethodCross Validation methodStarting modelResolution (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 DIFFRACTIONMOLECULAR REPLACEMENTTHROUGHOUTPDB ENTRY 2RCQ1.60833.01627685146492.030.215240.212360.26511RANDOM29.677
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]
-0.02-0.020.01
RMS Deviations
KeyRefinement Restraint Deviation
r_dihedral_angle_2_deg37.173
r_dihedral_angle_4_deg19.437
r_dihedral_angle_3_deg15.268
r_dihedral_angle_1_deg7.23
r_scangle_it5.481
r_scbond_it3.484
r_mcangle_it2.272
r_angle_refined_deg1.951
r_mcbond_it1.345
r_chiral_restr0.126
RMS Deviations
KeyRefinement Restraint Deviation
r_dihedral_angle_2_deg37.173
r_dihedral_angle_4_deg19.437
r_dihedral_angle_3_deg15.268
r_dihedral_angle_1_deg7.23
r_scangle_it5.481
r_scbond_it3.484
r_mcangle_it2.272
r_angle_refined_deg1.951
r_mcbond_it1.345
r_chiral_restr0.126
r_bond_refined_d0.02
r_gen_planes_refined0.009
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 Atoms2122
Nucleic Acid Atoms
Solvent Atoms164
Heterogen Atoms33

Software

Software
Software NamePurpose
HKL-2000data collection
MOLREPphasing
REFMACrefinement
HKL-2000data reduction
HKL-2000data scaling