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Structural basis for the cAMP-dependent gating in human HCN4 channel
Starting Model(s) Initial Refinement Model(s) Type Source Accession Code Details experimental model PDB 1Q43 PDB ENTRY 1Q43
Crystallization Crystalization Experiments ID Method pH Temperature Details 1 VAPOR DIFFUSION, HANGING DROP 5.5 298 12% ethanol, sodium citrate, 200 mM Li2SO4, pH 5.5, VAPOR DIFFUSION, HANGING DROP, temperature 298.0K
Crystal Properties Matthews coefficient Solvent content 2.38 48.32
Crystal Data Unit Cell Length ( Å ) Angle ( ˚ ) a = 69.264 α = 90 b = 69.264 β = 90 c = 191.616 γ = 90
Symmetry Space Group I 4 2 2
Diffraction Diffraction Experiment ID # Crystal ID Scattering Type Data Collection Temperature Detector Detector Type Details Collection Date Monochromator Protocol 1 1 x-ray 100 IMAGE PLATE MAR scanner 345 mm plate 2009-10-02 M SINGLE WAVELENGTH
Radiation Source ID # Source Type Wavelength List Synchrotron Site Beamline 1 SYNCHROTRON NSLS BEAMLINE X4C 0.97923 NSLS X4C
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) Redundancy Number Reflections (All) Number Reflections (Observed) Observed Criterion Sigma (F) Observed Criterion Sigma (I) B (Isotropic) From Wilson Plot 1 2.4 50 94 0.053 0.053 9567
Highest Resolution Shell ID # Resolution (High) Resolution (Low) Percent Possible (All) Percent Possible (Observed) R-Sym I (Observed) Mean I Over Sigma (Observed) Redundancy Number Unique Reflections (All) 2.4 2.44 95.9 0.277 5.2 8.4
Refinement Statistics Diffraction ID Structure Solution Method Cross Validation method Starting model Resolution (High) Resolution (Low) Number Reflections (Observed) Number Reflections (R-Free) Percent Reflections (Observed) 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 THROUGHOUT PDB ENTRY 1Q43 2.4 50 8549 433 93.86 0.23857 0.23674 0.2264 0.27464 0.2641 RANDOM 79.065
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] -0.5 -0.5 0.99
RMS Deviations Key Refinement Restraint Deviation r_dihedral_angle_2_deg 33.351 r_dihedral_angle_4_deg 25.44 r_dihedral_angle_3_deg 18.068 r_dihedral_angle_1_deg 4.843 r_angle_refined_deg 1.082 r_chiral_restr 0.065 r_bond_refined_d 0.009 r_gen_planes_refined 0.008 r_gen_planes_other r_nbd_refined
RMS Deviations Key Refinement Restraint Deviation r_dihedral_angle_2_deg 33.351 r_dihedral_angle_4_deg 25.44 r_dihedral_angle_3_deg 18.068 r_dihedral_angle_1_deg 4.843 r_angle_refined_deg 1.082 r_chiral_restr 0.065 r_bond_refined_d 0.009 r_gen_planes_refined 0.008 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_it r_mcbond_other r_mcangle_it r_scbond_it r_scangle_it r_rigid_bond_restr r_sphericity_free r_sphericity_bonded
Non-Hydrogen Atoms Used in Refinement Non-Hydrogen Atoms Number Protein Atoms 1561 Nucleic Acid Atoms Solvent Atoms 29 Heterogen Atoms 22
Software Software Software Name Purpose REFMAC refinement PHASER phasing CNS refinement HKL-2000 data collection HKL-2000 data reduction HKL-2000 data scaling