1W6F

Arylamine N-acetyltransferase from Mycobacterium smegmatis with the anti-tubercular drug isoniazid bound in the active site.


X-RAY DIFFRACTION

Starting Model(s)

Initial Refinement Model(s)
TypeSourceAccession CodeDetails
experimental modelPDB 1GX3PDB ENTRY 1GX3 CHAIN A

Crystallization

Crystalization Experiments
IDMethodpHTemperatureDetails
16.50.2M AMMONIUM SULPHATE, 0.1M MES PH 6.5, 30% PEG MME 5000
Crystal Properties
Matthews coefficientSolvent content
2.550

Crystal Data

Unit Cell
Length ( Å )Angle ( ˚ )
a = 101.208α = 90
b = 106.039β = 90
c = 140.362γ = 90
Symmetry
Space GroupP 21 21 21

Diffraction

Diffraction Experiment
ID #Crystal IDScattering TypeData Collection TemperatureDetectorDetector TypeDetailsCollection DateMonochromatorProtocol
11x-ray100CCDADSC CCD2003-11-27MSINGLE WAVELENGTH
Radiation Source
ID #SourceTypeWavelength ListSynchrotron SiteBeamline
1SYNCHROTRONESRF BEAMLINE ID14-1ESRFID14-1

Data Collection

Overall
ID #Resolution (High)Resolution (Low)Percent Possible (Observed)R Merge I (Observed)Net I Over Average Sigma (I)RedundancyNumber Reflections (All)Number Reflections (Observed)Observed Criterion Sigma (F)Observed Criterion Sigma (I)B (Isotropic) From Wilson Plot
11.3931.6292.20.125.173.34848583
Highest Resolution Shell
ID #Resolution (High)Resolution (Low)Percent Possible (All)Percent Possible (Observed)R Merge I (Observed)Mean I Over Sigma (Observed)RedundancyNumber Unique Reflections (All)
122.1192.10.611.163.62

Refinement

Statistics
Diffraction IDStructure Solution MethodCross Validation methodStarting modelResolution (High)Resolution (Low)Cut-off Sigma (F)Number Reflections (Observed)Number Reflections (R-Free)Percent Reflections (Observed)R-Factor (Observed)R-WorkR-FreeR-Free Selection DetailsMean Isotropic B
X-RAY DIFFRACTIONMOLECULAR REPLACEMENTTHROUGHOUTPDB ENTRY 1GX3 CHAIN A2.184.522.1107157410492.40.1820.180.219RANDOM23.94
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]
1.53-0.01-1.53
RMS Deviations
KeyRefinement Restraint Deviation
r_dihedral_angle_1_deg6.989
r_scangle_it4.881
r_angle_other_deg3.735
r_scbond_it2.932
r_mcangle_it2.129
r_angle_refined_deg1.702
r_mcbond_it1.168
r_symmetry_vdw_other0.383
r_nbd_other0.311
r_symmetry_vdw_refined0.248
RMS Deviations
KeyRefinement Restraint Deviation
r_dihedral_angle_1_deg6.989
r_scangle_it4.881
r_angle_other_deg3.735
r_scbond_it2.932
r_mcangle_it2.129
r_angle_refined_deg1.702
r_mcbond_it1.168
r_symmetry_vdw_other0.383
r_nbd_other0.311
r_symmetry_vdw_refined0.248
r_symmetry_hbond_refined0.248
r_nbd_refined0.245
r_xyhbond_nbd_refined0.195
r_chiral_restr0.107
r_nbtor_other0.107
r_bond_refined_d0.019
r_gen_planes_other0.011
r_gen_planes_refined0.008
r_bond_other_d
r_dihedral_angle_2_deg
r_dihedral_angle_3_deg
r_dihedral_angle_4_deg
r_nbtor_refined
r_xyhbond_nbd_other
r_metal_ion_refined
r_metal_ion_other
r_symmetry_hbond_other
r_symmetry_metal_ion_refined
r_symmetry_metal_ion_other
r_mcbond_other
r_mcangle_other
r_scbond_other
r_scangle_other
r_long_range_B_refined
r_long_range_B_other
r_rigid_bond_restr
r_sphericity_free
r_sphericity_bonded
Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen AtomsNumber
Protein Atoms8408
Nucleic Acid Atoms
Solvent Atoms718
Heterogen Atoms40

Software

Software
Software NamePurpose
REFMACrefinement
MOSFLMdata reduction
SCALAdata scaling
MOLREPphasing