3PLP

Bovine trypsin variant X(tripleIle227) 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	PDB ENTRY 1V2K

Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	VAPOR DIFFUSION, HANGING DROP	8	293	20% PEG 8000, 0.1M IMIDAZOLE, 0.2M AMMONIUM SULPHATE, pH 8.0, VAPOR DIFFUSION, HANGING DROP, temperature 293K

Crystal Properties
Matthews coefficient	Solvent content
2.04	39.73

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 55.096	α = 90
b = 55.096	β = 90
c = 108.881	γ = 120

Symmetry
Space Group	P 31 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+			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	1.63	30	99.9	0.069	20.7	8.6	24576	24576			19

Highest Resolution Shell
ID #	Resolution (High)	Resolution (Low)	Percent Possible (All)	Percent Possible (Observed)	R Merge I (Observed)	Mean I Over Sigma (Observed)	Redundancy	Number Unique Reflections (All)
1	1.63	1.69	99.9		0.269	5.3		2392

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	R-Free	R-Free Selection Details	Mean Isotropic B
X-RAY DIFFRACTION	MOLECULAR REPLACEMENT	THROUGHOUT	PDB ENTRY 1V2K	1.63	28.89	24576	24576	2486	100	0.17223	0.17223	0.17026	0.21097	RANDOM	17.331

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	0.27		0.53		-0.8

RMS Deviations
Key	Refinement Restraint Deviation
r_dihedral_angle_2_deg	38.972
r_dihedral_angle_4_deg	17.34
r_dihedral_angle_3_deg	10.666
r_dihedral_angle_1_deg	6.38
r_scangle_it	3.092
r_scbond_it	2.033
r_angle_refined_deg	1.416
r_mcangle_it	1.224
r_mcbond_it	0.687
r_chiral_restr	0.102
r_bond_refined_d	0.011
r_gen_planes_refined	0.007

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	1633
Nucleic Acid Atoms
Solvent Atoms	301
Heterogen Atoms	35

Software

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