1S0R

Bovine Pancreatic Trypsin inhibited with Benzamidine at Atomic resolution

X-RAY DIFFRACTION

Starting Model(s)

Initial Refinement Model(s)
Type	Source	Accession Code	Details
experimental model	PDB	1S0Q	PDB entry 1S0Q

Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	VAPOR DIFFUSION, HANGING DROP	8		PEG 6000, Benzamidine, Amonum Sulphate, Calcium Chloride, TRIS-HCl, pH 8, VAPOR DIFFUSION, HANGING DROP, temperature 100K

Crystal Properties
Matthews coefficient	Solvent content
2.27	45.73

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 54.393	α = 90
b = 58.424	β = 90
c = 66.542	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	CCD	MARRESEARCH		2001-11-09	M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	SYNCHROTRON	ESRF BEAMLINE BM14	1.02	ESRF	BM14

Data Collection

Overall
ID #	Resolution (High)	Resolution (Low)	Percent Possible (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	1.02	20	91.9			99328	94365

Highest Resolution Shell
ID #	Resolution (High)	Resolution (Low)	Percent Possible (All)	Percent Possible (Observed)	Mean I Over Sigma (Observed)	Redundancy	Number Unique Reflections (All)
	1.02	1.06	70.8

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	FREE R	PDB entry 1S0Q	1.02	20	99328	94365	4963	87.2	0.112	0.112	0.1108	0.1369	RANDOM

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]

Coordinate Error
Structure Solution Method	Refinement High Resolution	Refinement Low Resolution
10	1599.96	1973.97

RMS Deviations
Key	Refinement Restraint Deviation
s_non_zero_chiral_vol	0.096
s_approx_iso_adps	0.095
s_zero_chiral_vol	0.088
s_similar_adp_cmpnt	0.048
s_from_restr_planes	0.0325
s_angle_d	0.03
s_bond_d	0.016
s_rigid_bond_adp_cmpnt	0.005
s_similar_dist
s_anti_bump_dis_restr

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	1656
Nucleic Acid Atoms
Solvent Atoms	335
Heterogen Atoms	10

Software

Software
Software Name	Purpose
SHELX	model building
SHELXL-97	refinement
HKL-2000	data reduction
SCALEPACK	data scaling
EPMR	phasing

RCSB PDB Core Operations are funded by the U.S. National Science Foundation (DBI-2321666), the US Department of Energy (DE-SC0019749), and the National Cancer Institute, National Institute of Allergy and Infectious Diseases, and National Institute of General Medical Sciences of the National Institutes of Health under grant R01GM157729.