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The mechanism of ammonia transport based on the crystal structure of AmtB of E. coli.
Crystallization Crystalization Experiments ID Method pH Temperature Details 1 VAPOR DIFFUSION, SITTING DROP 4.6 298 PEG 550, pH 4.6, VAPOR DIFFUSION, SITTING DROP, temperature 298K
Crystal Properties Matthews coefficient Solvent content 3.9 68.1
Crystal Data Unit Cell Length ( Å ) Angle ( ˚ ) a = 111.8 α = 90 b = 111.8 β = 90 c = 86.4 γ = 120
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 MARRESEARCH 2004-07-31 M SAD
Radiation Source ID # Source Type Wavelength List Synchrotron Site Beamline 1 SYNCHROTRON SLS BEAMLINE X06SA 0.9797 SLS X06SA
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 1.8 96.67 95.6 0.054 13.2 3.8 54526 -3 37
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) 1 1.8 1.85 98.5 0.71 2 3.7 4386
Refinement Statistics Diffraction ID Structure Solution Method Cross Validation method 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 THROUGHOUT 1.8 25 51701 51701 2751 95.77 0.18196 0.18196 0.18062 0.2131 0.20755 0.2245 RANDOM 38.799
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] 1.27 0.63 1.27 -1.9
RMS Deviations Key Refinement Restraint Deviation r_dihedral_angle_2_deg 29.411 r_dihedral_angle_3_deg 11.672 r_dihedral_angle_4_deg 11.201 r_scangle_it 6.584 r_scbond_it 4.972 r_dihedral_angle_1_deg 4.693 r_mcangle_it 3.442 r_mcbond_it 2.612 r_angle_refined_deg 1.121 r_nbtor_refined 0.292
RMS Deviations Key Refinement Restraint Deviation r_dihedral_angle_2_deg 29.411 r_dihedral_angle_3_deg 11.672 r_dihedral_angle_4_deg 11.201 r_scangle_it 6.584 r_scbond_it 4.972 r_dihedral_angle_1_deg 4.693 r_mcangle_it 3.442 r_mcbond_it 2.612 r_angle_refined_deg 1.121 r_nbtor_refined 0.292 r_nbd_refined 0.175 r_symmetry_vdw_refined 0.125 r_chiral_restr 0.076 r_xyhbond_nbd_refined 0.073 r_symmetry_hbond_refined 0.055 r_bond_refined_d 0.013 r_gen_planes_refined 0.003
Non-Hydrogen Atoms Used in Refinement Non-Hydrogen Atoms Number Protein Atoms 2632 Nucleic Acid Atoms Solvent Atoms 103 Heterogen Atoms 14
Software Software Software Name Purpose REFMAC refinement MAR345 data collection XDS data scaling SHARP phasing