1BHC | pdb_00001bhc

BOVINE PANCREATIC TRYPSIN INHIBITOR CRYSTALLIZED FROM THIOCYANATE

X-RAY DIFFRACTION

Starting Model(s)

Initial Refinement Model(s)
Type	Source	Accession Code	Details
experimental model	PDB	6PTI	PDB ENTRY 6PTI

Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1		4.5		BPTI WAS CRYSTALLIZED FROM 250MM THIOCYANATE IN ACETATE BUFFER (50MM, PH=4.5)

Crystal Properties
Matthews coefficient	Solvent content
2.61	52

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 71.56	α = 90
b = 73.83	β = 93.91
c = 64.47	γ = 90

Symmetry
Space Group	P 1 21 1

Diffraction

Diffraction Experiment
ID #	Crystal ID	Scattering Type	Data Collection Temperature	Detector	Detector Type	Details	Collection Date	Monochromator	Protocol
1	1	x-ray	292	IMAGE PLATE	MARRESEARCH	MIRRORS	1997-03-18	M

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	SYNCHROTRON	LURE BEAMLINE DW32		LURE	DW32

Data Collection

Overall
ID #	Resolution (High)	Resolution (Low)	Percent Possible (Observed)	R Merge I (Observed)	R Sym 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	2.63	29.59	85.5	0.055	0.055	11.1	3.8		18308		2	50

Highest Resolution Shell
ID #	Resolution (High)	Resolution (Low)	Percent Possible (All)	Percent Possible (Observed)	R Merge I (Observed)	R-Sym I (Observed)	Mean I Over Sigma (Observed)	Redundancy	Number Unique Reflections (All)
	2.63	2.71	13.4		0.186	0.186	4.1	3.4

Refinement

Statistics
Diffraction ID	Structure Solution Method	Cross Validation method	Starting model	Resolution (High)	Resolution (Low)	Cut-off Sigma (F)	Number Reflections (Observed)	Number Reflections (R-Free)	Percent Reflections (Observed)	R-Factor (Observed)	R-Work (Depositor)	R-Free (Depositor)	R-Free Selection Details	Mean Isotropic B
X-RAY DIFFRACTION	MOLECULAR REPLACEMENT	THROUGHOUT	PDB ENTRY 6PTI	2.7	10	2	17808	1753	97.9	0.201	0.201	0.265	RANDOM	25.65

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]

RMS Deviations
Key	Refinement Restraint Deviation
x_dihedral_angle_d	25.8
x_scangle_it	8.6
x_scbond_it	5.6
x_mcangle_it	4.9
x_mcbond_it	3.3
x_angle_deg	1.6
x_improper_angle_d	1.45
x_bond_d	0.015
x_bond_d_na
x_bond_d_prot

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	4490
Nucleic Acid Atoms
Solvent Atoms	118
Heterogen Atoms	30

Software

Software
Software Name	Purpose
MOSFLM	data reduction
ROTAVATA-AGROVATA	data reduction
X-PLOR	model building
X-PLOR	refinement
CCP4	data scaling
ROTAVATA	data scaling
X-PLOR	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.