light on the protein's role in the body, or even the protein's
probable conformation. Indeed, a protein's conformation is often
vitally important in executing its biological tasks
-(\cref{fig:ligand-receptor}). Unfortunately both predicting stable
-conformations of a given amino acid sequence and the inverse problem
-of finding sequences that form a given conformation have proven
-remarkably difficult.
+(\cref{fig:ligand-receptor}). Unfortunately predicting a protein's
+stable conformations from it's amino acid sequence has proven to be
+remarkably difficult, as has the inverse problem of finding sequences
+that form a given conformation.
%
\nomenclature[text ]{DNA}{Deoxyribonucleic acid.}