3Q00 | pdb_00003q00

Bovine trypsin variant X(tripleGlu217Ile227) in complex with small molecule inhibitor

X-RAY DIFFRACTION

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Starting Model(s)

Initial Refinement Model(s)
Type	Source	Accession Code	Details
experimental model	PDB	1V2K

Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	VAPOR DIFFUSION, HANGING DROP	8	293	30% PEG8000, 0.2M AMMONIUM SULPHATE, 0.1M IMIDAZOLE, pH 8.0, VAPOR DIFFUSION, HANGING DROP, temperature 293K

Crystal Properties
Matthews coefficient	Solvent content
2.47	50.15

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 54.04	α = 90
b = 54.04	β = 90
c = 137.08	γ = 120

Symmetry
Space Group	P 32 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	RIGAKU SATURN 944+	mirrors		M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	ROTATING ANODE	RIGAKU	1.5418

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	1.7	16	99.97	0.05	16.7	3.7	25487	25487			18

Refinement

Statistics
Diffraction ID	Structure Solution Method	Cross Validation method	Starting model	Resolution (High)	Resolution (Low)	Number Reflections (All)	Number Reflections (Observed)	Number Reflections (R-Free)	Percent Reflections (Observed)	R-Factor (All)	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	1V2K	1.7	15.6	25487	25487	1981	99.97	0.17449	0.17449	0.17393	0.1719	0.20845	0.1868	RANDOM	18.594

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]
0.53	0.26		0.53		-0.79

RMS Deviations
Key	Refinement Restraint Deviation
r_dihedral_angle_2_deg	39.288
r_dihedral_angle_4_deg	14.386
r_dihedral_angle_3_deg	13.455
r_dihedral_angle_1_deg	6.574
r_scangle_it	5.267
r_scbond_it	4.009
r_mcangle_it	3.854
r_mcbond_it	3.287
r_angle_refined_deg	1.431
r_chiral_restr	0.095
r_bond_refined_d	0.014
r_gen_planes_refined	0.007

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	1636
Nucleic Acid Atoms
Solvent Atoms	327
Heterogen Atoms	57

Software

Software
Software Name	Purpose
CrystalClear	data collection
AMoRE	phasing
REFMAC	refinement
d*TREK	data reduction
SCALA	data scaling