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Bacillus cereus metallo-beta-lactamase (BcII) Arg (121) Cys mutant. Solved at pH7 using 20mM ZnSO4 in buffer. 1mM DTT was used as a reducing agent
Starting Model(s) Initial Refinement Model(s) Type Source Accession Code Details experimental model PDB 1BC2 PDB ENTRY 1BC2
Crystallization Crystalization Experiments ID Method pH Temperature Details 1 VAPOR DIFFUSION, HANGING DROP 7 291 PROTEIN WAS CRYSTALLISED USING HANGING DROP VAPOR DIFFUSION. RESERVOIR SOLUTION CONTAINED 100MM TRIS AT PH4.5-5, 70-75% AMMONIUM SULPHATE, 1MM DTT OR 1MM DTT AND 1MM TCEP-HCL, 2MM ZNSO4 AND 0.1% AZIDE. PROTEIN CONCENTRATION OF 2.7 MG/ML. DROPS WERE KEPT AT 291K AND WERE STREAK SEEDED FROM A WILD TYPE CRYSTAL AFTER 1 DAY., pH 7.00
Crystal Properties Matthews coefficient Solvent content 2.1 42
Crystal Data Unit Cell Length ( Å ) Angle ( ˚ ) a = 67.311 α = 90 b = 67.311 β = 90 c = 178.01 γ = 120
Symmetry Space Group P 31 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 MARRESEARCH 2000-11-13 M SINGLE WAVELENGTH
Radiation Source ID # Source Type Wavelength List Synchrotron Site Beamline 1 SYNCHROTRON ESRF BEAMLINE ID13 ESRF ID13
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 58.72 99.9 0.11 4.4 11 37787 5 20.1
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 1.97 2.04 99.9 0.55 1.1 9.9
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 1BC2 2 6 71090 3591 99.9 0.1721 0.1721 0.1798 0.2085 0.1845 RANDOM 25.31
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]
RMS Deviations Key Refinement Restraint Deviation c_dihedral_angle_d 23.9 c_angle_deg 1.39 c_improper_angle_d 0.8 c_bond_d 0.007 c_bond_d_na c_bond_d_prot c_angle_d c_angle_d_na c_angle_d_prot c_angle_deg_na
RMS Deviations Key Refinement Restraint Deviation c_dihedral_angle_d 23.9 c_angle_deg 1.39 c_improper_angle_d 0.8 c_bond_d 0.007 c_bond_d_na c_bond_d_prot c_angle_d c_angle_d_na c_angle_d_prot c_angle_deg_na c_angle_deg_prot c_dihedral_angle_d_na c_dihedral_angle_d_prot c_improper_angle_d_na c_improper_angle_d_prot c_mcbond_it c_mcangle_it c_scbond_it c_scangle_it
Non-Hydrogen Atoms Used in Refinement Non-Hydrogen Atoms Number Protein Atoms 3392 Nucleic Acid Atoms Solvent Atoms 515 Heterogen Atoms 121
Software Software Software Name Purpose CNS refinement DENZO data reduction SCALA data scaling CNS phasing