6QIH

Pancreatic Bovine Trypsin with a boronic acid inhibitor

X-RAY DIFFRACTION

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Starting Model(s)

Initial Refinement Model(s)
Type	Source	Accession Code	Details
experimental model	PDB	3A7X

Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	VAPOR DIFFUSION, HANGING DROP		293	25% polyethylene glycol 8000 (PEG 8K), 0.2 M ammonium sulfate and 0.1 M sodium cacodylate buffer (pH 6.5)

Crystal Properties
Matthews coefficient	Solvent content
2.2	44.16

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 54.49	α = 90
b = 56.71	β = 90
c = 66.5	γ = 90

Symmetry
Space Group	P 21 21 21

Diffraction

Diffraction Experiment
ID #	Crystal ID	Scattering Type	Data Collection Temperature	Detector	Detector Type	Details	Collection Date	Monochromator	Protocol
1	1	x-ray	100	PIXEL	DECTRIS PILATUS 2M		2012-02-25	M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	SYNCHROTRON	ESRF BEAMLINE ID29	0.976	ESRF	ID29

Data Collection

Overall
ID #	Resolution (High)	Resolution (Low)	Percent Possible (Observed)	R Merge I (Observed)	Rpim I (All)	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	1.42	42.15	99.4	0.038	0.02	22.3	4.5		39086		11.9

Highest Resolution Shell
ID #	Resolution (High)	Resolution (Low)	Percent Possible (All)	Percent Possible (Observed)	R Merge I (Observed)	Rpim I (All)	Mean I Over Sigma (Observed)	Redundancy	Number Unique Reflections (All)
1	1.42	1.5	99.4		0.09	0.05	11.9	4.6

Refinement

Statistics
Diffraction ID	Structure Solution Method	Cross Validation method	Starting model	Resolution (High)	Resolution (Low)	Number Reflections (Observed)	Number Reflections (R-Free)	Percent Reflections (Observed)	R-Factor (Observed)	R-Work	R-Free	R-Free Selection Details	Mean Isotropic B
X-RAY DIFFRACTION	MOLECULAR REPLACEMENT	THROUGHOUT	3A7X	1.42	42.15	37077	1955	99.16	0.09655	0.09462	0.13283	RANDOM	13.284

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]
-0.05			-0.04		0.09

RMS Deviations
Key	Refinement Restraint Deviation
r_dihedral_angle_2_deg	39.847
r_sphericity_free	32.967
r_dihedral_angle_4_deg	17.941
r_rigid_bond_restr	14.639
r_dihedral_angle_3_deg	11.867
r_sphericity_bonded	9.118
r_dihedral_angle_1_deg	6.484
r_long_range_B_refined	4.226
r_scangle_other	3.639
r_long_range_B_other	3.562
r_scbond_other	3.327
r_scbond_it	3.326
r_angle_refined_deg	2.816
r_angle_other_deg	2.24
r_mcangle_other	1.877
r_mcangle_it	1.875
r_mcbond_it	1.549
r_mcbond_other	1.546
r_chiral_restr	0.192
r_bond_refined_d	0.03
r_gen_planes_refined	0.015
r_gen_planes_other	0.011
r_bond_other_d	0.007
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_scangle_it

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	1629
Nucleic Acid Atoms
Solvent Atoms	279
Heterogen Atoms	49

Software

Software
Software Name	Purpose
REFMAC	refinement
XDS	data reduction
Aimless	data scaling
PHASER	phasing