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THE CRYSTAL STRUCTURE OF THE SIV GP41 ECTODOMAIN AT 1.47 A
Starting Model(s) Initial Refinement Model(s) Type Source Accession Code Details experimental model PDB 1MOF POLY ALANINE MODEL (RESIDUES 46-74) OF MMLV TRANSMEMBRANE TRIMERIC CORE (1MOF)
Crystallization Crystalization Experiments ID Method pH Temperature Details 1 4.25 14-25% MPD (2-METHYL-2,4- PENTANEDIOL) 140-220 MM NACL, 20-40 MM SODIUM ACETATE, pH 4.25
Crystal Properties Matthews coefficient Solvent content 1.78 30.8
Crystal Data Unit Cell Length ( Å ) Angle ( ˚ ) a = 91.124 α = 90 b = 47.206 β = 100.83 c = 77.465 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 93 IMAGE PLATE MARRESEARCH 1997-11-22 M SINGLE WAVELENGTH
Radiation Source ID # Source Type Wavelength List Synchrotron Site Beamline 1 SYNCHROTRON NSLS BEAMLINE X9B NSLS X9B
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 1.47 15 89.9 0.064 14.8 8.3 49553 0.5
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 1.47 1.5 70.9 0.19 3.6 2.3
Refinement Statistics Diffraction ID Structure Solution Method Cross Validation method Starting model Resolution (High) Resolution (Low) Number Reflections (All) Number Reflections (R-Free) Percent Reflections (Observed) R-Factor (All) R-Factor (Observed) R-Work (Depositor) R-Free (Depositor) R-Free Selection Details Mean Isotropic B X-RAY DIFFRACTION MIR AND MR FREE R POLY ALANINE MODEL (RESIDUES 46-74) OF MMLV TRANSMEMBRANE TRIMERIC CORE (1MOF) 1.47 15 49533 2462 5 0.155 0.152 0.218 THIN SHELL
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]
Coordinate Error Structure Solution Method Refinement High Resolution Refinement Low Resolution 37 2609 3046
RMS Deviations Key Refinement Restraint Deviation s_zero_chiral_vol 0.104 s_non_zero_chiral_vol 0.097 s_approx_iso_adps 0.076 s_similar_adp_cmpnt 0.048 s_angle_d 0.03 s_from_restr_planes 0.021 s_anti_bump_dis_restr 0.017 s_bond_d 0.011 s_rigid_bond_adp_cmpnt 0.003 s_similar_dist
Non-Hydrogen Atoms Used in Refinement Non-Hydrogen Atoms Number Protein Atoms 2768 Nucleic Acid Atoms Solvent Atoms 263 Heterogen Atoms 21
Software Software Software Name Purpose MLPHARE phasing SHELXL-97 refinement DENZO data reduction SCALEPACK data scaling PHASES phasing DM phasing AMoRE phasing