title: Effect of substitution of glycine by D- or L-alanine on the activity of the C-terminal hexapeptide analogue of substance P on isolated guinea-pig ileum.
mesh_terms: D000595:Amino Acid Sequence; D000818:Animals; D006168:Guinea Pigs; D007082:Ileum / Q000187:drug effects* / Q000502:physiology; D009119:Muscle Contraction / Q000187:drug effects*; D009842:Oligopeptides / Q000494:pharmacology*; D011761:Pyrrolidonecarboxylic Acid / Q000031:analogs & derivatives; D013329:Structure-Activity Relationship
chemical_list: D009842:Oligopeptides; C031070:pyroglutamyl-phenylalanyl-phenylalanyl-alanyl-leucyl-methioninamide; D011761:Pyrrolidonecarboxylic Acid