3PSG

THE HIGH RESOLUTION CRYSTAL STRUCTURE OF PORCINE PEPSINOGEN

X-RAY DIFFRACTION

Crystallization

Crystal Properties
Matthews coefficient	Solvent content
2.6	52.75

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 106.1	α = 90
b = 43.7	β = 91.4
c = 88.9	γ = 90

Symmetry
Space Group	C 1 2 1

Refinement

Statistics
Diffraction ID	Structure Solution Method	Resolution (High)	Resolution (Low)	Number Reflections (R-Free)	Percent Reflections (Observed)	R-Factor (Observed)	R-Work	R-Free	Mean Isotropic B
X-RAY DIFFRACTION		1.65				0.17

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]

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	2692
Nucleic Acid Atoms
Solvent Atoms	180
Heterogen Atoms

Software

Software
Software Name	Purpose
TNT	refinement

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 R01GM133198.