3PM3

Bovine trypsin variant X(tripleIle227) in complex with small molecule inhibitor

X-RAY DIFFRACTION

---

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	30% PEG 8000, 0.1M IMIDAZOLE, 0.2M AMMONIUM SULPHATE, pH 8.0, VAPOR DIFFUSION, HANGING DROP, temperature 293K

Crystal Properties
Matthews coefficient	Solvent content
2.05	39.97

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 54.502	α = 90
b = 54.502	β = 90
c = 111.708	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	MARMOSAIC 225 mm CCD	mirrors		M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	SYNCHROTRON	BESSY BEAMLINE 14.1	0.91841	BESSY	14.1

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	1.52	50	93.9	0.172	5.6	4.5	29835	29835			13

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	1.52	1.57	61		0.547	1.3	2.9	1890

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	1.53	50	29463	27979	1484	98.58	0.15354	0.15354	0.15351	0.18126	RANDOM	14.447

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]
-0.12	-0.06		-0.12		0.18

RMS Deviations
Key	Refinement Restraint Deviation
r_dihedral_angle_2_deg	38.99
r_dihedral_angle_4_deg	21.015
r_dihedral_angle_3_deg	10.957
r_dihedral_angle_1_deg	6.58
r_scangle_it	2.862
r_scbond_it	1.931
r_angle_refined_deg	1.532
r_mcangle_it	1.293
r_mcbond_it	0.733
r_chiral_restr	0.258
r_bond_refined_d	0.011
r_gen_planes_refined	0.007
r_bond_other_d
r_angle_other_deg
r_gen_planes_other
r_nbd_refined
r_nbd_other
r_nbtor_refined
r_nbtor_other
r_xyhbond_nbd_refined
r_xyhbond_nbd_other
r_metal_ion_refined
r_metal_ion_other
r_symmetry_vdw_refined
r_symmetry_vdw_other
r_symmetry_hbond_refined
r_symmetry_hbond_other
r_symmetry_metal_ion_refined
r_symmetry_metal_ion_other
r_mcbond_other
r_rigid_bond_restr
r_sphericity_free
r_sphericity_bonded

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	1633
Nucleic Acid Atoms
Solvent Atoms	371
Heterogen Atoms	63

Software

Software
Software Name	Purpose
MxCuBE	data collection
AMoRE	phasing
REFMAC	refinement
HKL-2000	data reduction
SCALEPACK	data scaling