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Nuclear magnetic resonance studies on complementary peptides.

From the original observation that the codons for the hydrophobic and hydrophilic amino acids on one strand of the DNA may be complemented by the codons for the hydrophilic and hydrophobic amino acids, respectively, on the complementary strand, arose the molecular recognition theory which forms the basis for much of the work involving complementary peptides. A number of examples have been documented where peptides with inverted hydropathic profiles have been shown to form complexes in high-affinity chromatography and solid matrix binding assays. Nevertheless, our current understanding of the molecular forces leading to the formation of these complexes is rather rudimentary, and it is highly desirable to have a detailed three-dimensional structure of a complex of interacting complementary peptides. In this article, we provide a brief review of the solution NMR work done by different laboratories in an attempt to study these interactions.