title: Isolation and structure of a new active peptide "Xenopsin" on the smooth muscle, especially on a strip of fundus from a rat stomach, from the skin of Xenopus laevis.
mesh_terms: D000818:Animals; D066298:In Vitro Techniques; D009119:Muscle Contraction; D009130:Muscle, Smooth / Q000187:drug effects*; D010455:Peptides / Q000302:isolation & purification* / Q000494:pharmacology; D051381:Rats; D012867:Skin / Q000032:analysis*; D013270:Stomach / Q000187:drug effects; D014981:Xenopus / Q000378:metabolism*
chemical_list: D010455:Peptides