1QB6

BOVINE TRYPSIN 3,3'-[3,5-DIFLUORO-4-METHYL-2, 6-PYRIDINEDIYLBIS(OXY)]BIS(BENZENECARBOXIMIDAMIDE) (ZK-805623) COMPLEX


X-RAY DIFFRACTION

Crystallization

Crystalization Experiments
IDMethodpHTemperatureDetails
1VAPOR DIFFUSION, HANGING DROP7.4297MICROCRYSTALS WERE INITIALLY GROWN USING THE HANGING DROP METHOD IN LINBRO CULTURE PLATES. CRYSTALLIZATION RESERVOIRS CONTAIN 1.8 - 2.0 M AMMONIUM SULFATE, 50 MM TRIS HCL, 10 MM CACL2, PH 7.4. SIX UL OF 15 MG/ML BOVINE TRYPSIN IN 20 MM 2-AMINOBENZIMIDAZOLE WAS ADDED TO 6 UL OF RESERVOIR. MACROSEEDING WAS USED TO GROW LARGE CRYSTALS (REF. 5). SINGLE CRYSTALS WERE WASHED IN 0.8 M AMMONIUM SULFATE, 50 MM TRIS HCL, 10 MM CACL2, PH 7.4. THE WASHED CRYSTALS WERE PLACED IN A 18 HOUR OLD HANGING, VAPOR DIFFUSION, HANGING DROP, temperature 297K
Crystal Properties
Matthews coefficientSolvent content
2.0539.91

Crystal Data

Unit Cell
Length ( Å )Angle ( ˚ )
a = 55.07α = 90
b = 55.07β = 90
c = 109.11γ = 120
Symmetry
Space GroupP 31 2 1

Diffraction

Diffraction Experiment
ID #Crystal IDScattering TypeData Collection TemperatureDetectorDetector TypeDetailsCollection DateMonochromatorProtocol
11x-ray297IMAGE PLATERIGAKU RAXIS IIMIRRORS1994-11-12MSINGLE WAVELENGTH
Radiation Source
ID #SourceTypeWavelength ListSynchrotron SiteBeamline
1ROTATING ANODESIEMENS

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
11.81084.50.1026.24.315745157452
Highest Resolution Shell
ID #Resolution (High)Resolution (Low)Percent Possible (All)Percent Possible (Observed)R-Sym I (Observed)Mean I Over Sigma (Observed)RedundancyNumber Unique Reflections (All)
1.81.968.20.2381.852.05

Refinement

Statistics
Diffraction IDStructure Solution MethodResolution (High)Resolution (Low)Cut-off Sigma (F)Number Reflections (All)Number Reflections (Observed)Number Reflections (R-Free)Percent Reflections (Observed)R-WorkR-FreeMean Isotropic B
X-RAY DIFFRACTIONDIRECT REPLACEMENT1.8102157321510362984.50.1880.224
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
KeyRefinement Restraint Deviation
p_transverse_tor29.1
p_staggered_tor17.4
p_scangle_it3.648
p_scbond_it3.147
p_planar_tor2.6
p_mcangle_it2.476
p_mcbond_it1.949
p_xyhbond_nbd0.252
p_multtor_nbd0.187
p_singtor_nbd0.178
RMS Deviations
KeyRefinement Restraint Deviation
p_transverse_tor29.1
p_staggered_tor17.4
p_scangle_it3.648
p_scbond_it3.147
p_planar_tor2.6
p_mcangle_it2.476
p_mcbond_it1.949
p_xyhbond_nbd0.252
p_multtor_nbd0.187
p_singtor_nbd0.178
p_chiral_restr0.158
p_planar_d0.044
p_angle_d0.033
p_bond_d0.016
p_plane_restr0.015
p_angle_deg
p_hb_or_metal_coord
p_xhyhbond_nbd
p_orthonormal_tor
p_special_tor
Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen AtomsNumber
Protein Atoms1642
Nucleic Acid Atoms
Solvent Atoms135
Heterogen Atoms31

Software

Software
Software NamePurpose
DENZOdata reduction
SCALEPACKdata scaling
PROFFTrefinement