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Computer aided prediction and evaluation of the tertiary structure for rat elastase II
Journal of Theoretical Biology
|March 7, 1986
Summary
Researchers predicted the tertiary structure of rat elastase II using computational methods. The resulting model accurately reflects known serine proteinase structures and suggests substrate cleavage sites.
Area of Science:
- Biochemistry
- Structural Biology
- Computational Chemistry
Background:
- Mammalian serine proteinases are a crucial class of enzymes.
- Understanding enzyme structure is key to predicting function.
- Rat elastase II is a member of this enzyme family.
Purpose of the Study:
- To predict the tertiary structure of rat elastase II.
- To refine the predicted structure using computational methods.
- To identify potential substrate cleavage preferences.
Main Methods:
- Utilized primary amino acid sequence and homology modeling.
- Employed force field refinement calculations for structural relaxation.
- Incorporated conserved solvation molecules and re-refined the structure.
Main Results:
- A proposed tertiary structure for rat elastase II was generated.
- The refined structure showed high similarity to crystallographically determined serine proteinase structures (0.03-0.14 A RMS).
- Predicted substrate cleavage preferences were identified.
Conclusions:
- Computational methods can accurately predict enzyme tertiary structures.
- The predicted structure of rat elastase II is reliable and comparable to experimental data.
- The model provides insights into the enzyme's substrate specificity.