title: Stereochemically constrained enkephalin analogs containing alpha-aminoisobutyric acid and 1-amino-cyclopentane-1-carboxylic acid.
mesh_terms: D000478:Alkylation; D000596:Amino Acids; D000598:Amino Acids, Cyclic; D000621:Aminoisobutyric Acids; D002942:Circular Dichroism; D004745:Enkephalins; D009682:Magnetic Resonance Spectroscopy; D011487:Protein Conformation; D013329:Structure-Activity Relationship
chemical_list: D000596:Amino Acids; D000598:Amino Acids, Cyclic; D000621:Aminoisobutyric Acids; D004745:Enkephalins; C100049:2-aminoisobutyric acid; C023863:1-aminocyclopropane-1-carboxylic acid