title: Bovine and ovine prolactins: a difference of two amino acids indicated by peptide maps.
mesh_terms: D000409:Alanine / Q000032:analysis; D000595:Amino Acid Sequence; D000596:Amino Acids / Q000032:analysis*; D000818:Animals; D002417:Cattle; D002845:Chromatography; D004586:Electrophoresis; D006639:Histidine / Q000032:analysis; D010455:Peptides / Q000032:analysis; D011388:Prolactin / Q000032:analysis*; D012756:Sheep; D014357:Trypsin; D014633:Valine / Q000032:analysis
chemical_list: D000596:Amino Acids; D010455:Peptides; D006639:Histidine; D011388:Prolactin; D014357:Trypsin; D014633:Valine; D000409:Alanine