3RXF

Crystal structure of Trypsin complexed with 4-aminopyridine


X-RAY DIFFRACTION

Starting Model(s)

Initial Refinement Model(s)
TypeSourceAccession CodeDetails
experimental modelPDB 1S0RPDB ENTRY 1S0R

Crystallization

Crystalization Experiments
IDMethodpHTemperatureDetails
1VAPOR DIFFUSION, SITTING DROP8.52770.1M Tris-HCl, 30% PEG 3350, 0.2M Lithium Sulfate, pH 8.5, VAPOR DIFFUSION, SITTING DROP, temperature 277K
Crystal Properties
Matthews coefficientSolvent content
2.2745.86

Crystal Data

Unit Cell
Length ( Å )Angle ( ˚ )
a = 54.481α = 90
b = 58.391β = 90
c = 66.624γ = 90
Symmetry
Space GroupP 21 21 21

Diffraction

Diffraction Experiment
ID #Crystal IDScattering TypeData Collection TemperatureDetectorDetector TypeDetailsCollection DateMonochromatorProtocol
11x-ray100IMAGE PLATERIGAKU RAXIS IV++MSINGLE WAVELENGTH
Radiation Source
ID #SourceTypeWavelength ListSynchrotron SiteBeamline
1ROTATING ANODERIGAKU MICROMAX-0071.5418

Data Collection

Overall
ID #Resolution (High)Resolution (Low)Percent Possible (Observed)R Merge I (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
11.75099.30.050.054.72404423876-313.9

Refinement

Statistics
Diffraction IDStructure Solution MethodCross Validation methodStarting modelResolution (High)Resolution (Low)Number Reflections (All)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 1S0R1.7202280922401117898.210.162880.161930.18039RANDOM11.178
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]
0.07-0.190.12
RMS Deviations
KeyRefinement Restraint Deviation
r_dihedral_angle_2_deg39.824
r_dihedral_angle_4_deg18.22
r_dihedral_angle_3_deg10.518
r_dihedral_angle_1_deg6.136
r_angle_refined_deg1.065
r_angle_other_deg0.773
r_chiral_restr0.065
r_bond_refined_d0.006
r_gen_planes_refined0.003
r_bond_other_d0.002
RMS Deviations
KeyRefinement Restraint Deviation
r_dihedral_angle_2_deg39.824
r_dihedral_angle_4_deg18.22
r_dihedral_angle_3_deg10.518
r_dihedral_angle_1_deg6.136
r_angle_refined_deg1.065
r_angle_other_deg0.773
r_chiral_restr0.065
r_bond_refined_d0.006
r_gen_planes_refined0.003
r_bond_other_d0.002
r_gen_planes_other0.001
Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen AtomsNumber
Protein Atoms1629
Nucleic Acid Atoms
Solvent Atoms349
Heterogen Atoms38

Software

Software
Software NamePurpose
CrystalCleardata collection
MOLREPphasing
REFMACrefinement
HKL-2000data reduction
SCALEPACKdata scaling