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Tetramerization dynamics of the C-terminus underlies isoform-specific cAMP-gating in HCN channels
Starting Model(s) Initial Refinement Model(s) Type Source Accession Code Details experimental model PDB 1Q43
Crystallization Crystalization Experiments ID Method pH Temperature Details 1 VAPOR DIFFUSION 5 278 25% PEG 3350, 0.4M Sodium Acetate buffer, pH 5.0, 0.5M dibasic Ammonium phosphate, VAPOR DIFFUSION, temperature 278K
Crystal Properties Matthews coefficient Solvent content 2.29 46.28
Crystal Data Unit Cell Length ( Å ) Angle ( ˚ ) a = 88.31 α = 90 b = 88.31 β = 90 c = 57.84 γ = 90
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 ADSC QUANTUM 315r 2010-02-26 M SINGLE WAVELENGTH
Radiation Source ID # Source Type Wavelength List Synchrotron Site Beamline 1 SYNCHROTRON ESRF BEAMLINE ID29 0.97238 ESRF ID29
Data Collection Overall ID # Resolution (High) Resolution (Low) Percent Possible (Observed) R Merge 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 2.5 62.44 100 0.132 4.8 15615 10 10
Highest Resolution Shell ID # Resolution (High) Resolution (Low) Percent Possible (All) Percent Possible (Observed) Mean I Over Sigma (Observed) Redundancy Number Unique Reflections (All) 1 2.5 2.64 100
Refinement Statistics Diffraction ID Structure Solution Method Cross Validation method Starting model Resolution (High) Resolution (Low) Cut-off Sigma (F) 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 THROUGHOUT 1Q43 2.5 62.44 2 14834 14834 781 99.99 0.19727 0.19727 0.19306 0.1968 0.27737 0.2738 RANDOM 21.282
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] -0.14 -0.14 0.27
RMS Deviations Key Refinement Restraint Deviation r_dihedral_angle_2_deg 30.727 r_dihedral_angle_3_deg 20.164 r_dihedral_angle_4_deg 19.452 r_dihedral_angle_1_deg 11.298 r_scangle_it 3.822 r_scbond_it 2.301 r_angle_refined_deg 1.746 r_mcangle_it 1.445 r_mcbond_it 0.738 r_chiral_restr 0.132
RMS Deviations Key Refinement Restraint Deviation r_dihedral_angle_2_deg 30.727 r_dihedral_angle_3_deg 20.164 r_dihedral_angle_4_deg 19.452 r_dihedral_angle_1_deg 11.298 r_scangle_it 3.822 r_scbond_it 2.301 r_angle_refined_deg 1.746 r_mcangle_it 1.445 r_mcbond_it 0.738 r_chiral_restr 0.132 r_bond_refined_d 0.015 r_gen_planes_refined 0.007
Non-Hydrogen Atoms Used in Refinement Non-Hydrogen Atoms Number Protein Atoms 3310 Nucleic Acid Atoms Solvent Atoms 147 Heterogen Atoms 74
Software Software Software Name Purpose ADSC data collection MOLREP phasing REFMAC refinement MOSFLM data reduction SCALA data scaling