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Crystal Structure of Calmodulin Binding Domain of Orai1 in Complex with Ca2+/Calmodulin Displays a Unique Binding Mode
Starting Model(s) Initial Refinement Model(s) Type Source Accession Code Details experimental model PDB 1IWQ PDB ENTRY 1IWQ
Crystallization Crystalization Experiments ID Method pH Temperature Details 1 VAPOR DIFFUSION, HANGING DROP 6 293 0.1 M Bis-Tris pH 6.0, 40% PPG P400, 14% butyrolactone, 1% n-octyl-beta-D-glucopyranoside, VAPOR DIFFUSION, HANGING DROP, temperature 293K
Crystal Properties Matthews coefficient Solvent content 1.94 36.57
Crystal Data Unit Cell Length ( Å ) Angle ( ˚ ) a = 100.074 α = 90 b = 24.709 β = 100.1 c = 60.903 γ = 90
Symmetry Space Group C 1 2 1
Diffraction Diffraction Experiment ID # Crystal ID Scattering Type Data Collection Temperature Detector Detector Type Details Collection Date Monochromator Protocol 1 1 x-ray 100 CCD RIGAKU SATURN 92 2010-08-23 M SINGLE WAVELENGTH
Radiation Source ID # Source Type Wavelength List Synchrotron Site Beamline 1 ROTATING ANODE RIGAKU MICROMAX-007 HF 1.5418
Data Collection Overall ID # Resolution (High) Resolution (Low) Percent Possible (Observed) R Sym I (Observed) Net I Over Average Sigma (I) Redundancy Number Reflections (All) Number Reflections (Observed) Observed Criterion Sigma (F) Observed Criterion Sigma (I) B (Isotropic) From Wilson Plot 1 1.9 50 96.3 0.084 12.9 3.4 11939 11497 1 1 18
Highest Resolution Shell ID # Resolution (High) Resolution (Low) Percent Possible (All) Percent Possible (Observed) R Merge I (Observed) Mean I Over Sigma (Observed) Redundancy Number Unique Reflections (All) 1 1.9 1.97 73.9 0.231 3.9 2.2 853
Refinement Statistics Diffraction ID Structure Solution Method Starting model Resolution (High) Resolution (Low) Number Reflections (All) Number Reflections (Observed) Number Reflections (R-Free) Percent Reflections (Observed) R-Factor (All) R-Factor (Observed) R-Work (Depositor) R-Work (DCC) R-Free (Depositor) R-Free (DCC) R-Free Selection Details Mean Isotropic B X-RAY DIFFRACTION MOLECULAR REPLACEMENT PDB ENTRY 1IWQ 1.9005 19.987 11497 11118 524 93.14 0.1806 0.1806 0.1789 0.1731 0.216 0.2075 RANDOM
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] 0.9482 0.6951 -0.6742 -0.274
RMS Deviations Key Refinement Restraint Deviation f_dihedral_angle_d 13.077 f_angle_d 0.879 f_chiral_restr 0.064 f_bond_d 0.014 f_plane_restr 0.003
Non-Hydrogen Atoms Used in Refinement Non-Hydrogen Atoms Number Protein Atoms 1310 Nucleic Acid Atoms Solvent Atoms 88 Heterogen Atoms 28
Software Software Software Name Purpose HKL-2000 data collection PHENIX model building PHENIX refinement DENZO data reduction SCALEPACK data scaling PHENIX phasing