1TO1

crystal structure of the complex of subtilisin BPN' with chymotrypsin inhibitor 2 Y61A mutant


X-RAY DIFFRACTION

Starting Model(s)

Initial Refinement Model(s)
TypeSourceAccession CodeDetails
experimental modelPDB 1TM3PDB entry 1tm3

Crystallization

Crystalization Experiments
IDMethodpHTemperatureDetails
1VAPOR DIFFUSION, HANGING DROP4.6277sodium citrate, isopropanol, PEG 400, pH 4.6, VAPOR DIFFUSION, HANGING DROP, temperature 277K
Crystal Properties
Matthews coefficientSolvent content
3.463.2

Crystal Data

Unit Cell
Length ( Å )Angle ( ˚ )
a = 94.087α = 90
b = 94.087β = 90
c = 185.769γ = 120
Symmetry
Space GroupP 65 2 2

Diffraction

Diffraction Experiment
ID #Crystal IDScattering TypeData Collection TemperatureDetectorDetector TypeDetailsCollection DateMonochromatorProtocol
11x-ray100CCDADSC QUANTUM 42002-10-26MSINGLE WAVELENGTH
Radiation Source
ID #SourceTypeWavelength ListSynchrotron SiteBeamline
1SYNCHROTRONALS BEAMLINE 8.3.11.0ALS8.3.1

Data Collection

Overall
ID #Resolution (High)Resolution (Low)Percent Possible (Observed)R Sym 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
11.6881.6599.40.09910.34.75567655676-3-3

Refinement

Statistics
Diffraction IDStructure Solution MethodCross Validation methodStarting modelResolution (High)Resolution (Low)Cut-off Sigma (I)Cut-off Sigma (F)Number Reflections (All)Number Reflections (Observed)Number Reflections (R-Free)Percent Reflections (Observed)R-Factor (All)R-Factor (Observed)R-WorkR-FreeR-Free Selection DetailsMean Isotropic B
X-RAY DIFFRACTIONMOLECULAR REPLACEMENTTHROUGHOUTPDB entry 1tm31.6881.65-3-35567652890278699.350.156850.156850.15550.1823inherited from 1tm317.925
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]
0.210.110.21-0.32
RMS Deviations
KeyRefinement Restraint Deviation
r_dihedral_angle_1_deg5.785
r_scangle_it4.559
r_scbond_it2.679
r_angle_refined_deg1.728
r_mcangle_it1.524
r_mcbond_it0.927
r_symmetry_vdw_refined0.398
r_nbd_refined0.214
r_symmetry_hbond_refined0.199
r_xyhbond_nbd_refined0.166
RMS Deviations
KeyRefinement Restraint Deviation
r_dihedral_angle_1_deg5.785
r_scangle_it4.559
r_scbond_it2.679
r_angle_refined_deg1.728
r_mcangle_it1.524
r_mcbond_it0.927
r_symmetry_vdw_refined0.398
r_nbd_refined0.214
r_symmetry_hbond_refined0.199
r_xyhbond_nbd_refined0.166
r_chiral_restr0.128
r_metal_ion_refined0.063
r_bond_refined_d0.019
r_gen_planes_refined0.008
Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen AtomsNumber
Protein Atoms2545
Nucleic Acid Atoms
Solvent Atoms501
Heterogen Atoms75

Software

Software
Software NamePurpose
REFMACrefinement
MOSFLMdata reduction
CCP4data scaling
TRUNCATEdata scaling
EPMRphasing