title: Do toxic tetrapeptides play a role in fatal viral diseases?
mesh_terms: D002493:Central Nervous System Diseases / Q000401:mortality; D006331:Heart Diseases / Q000401:mortality; D006801:Humans; D009201:Myocardial Depressant Factor / Q000037:antagonists & inhibitors / Q000096:biosynthesis / Q000633:toxicity*; D009842:Oligopeptides / Q000096:biosynthesis / Q000633:toxicity*; D010179:Pancreas / Q000378:metabolism; D010182:Pancreatic Diseases / Q000378:metabolism; D010455:Peptides / Q000633:toxicity*; D014777:Virus Diseases / Q000378:metabolism / Q000401:mortality*
chemical_list: D009201:Myocardial Depressant Factor; D009842:Oligopeptides; D010455:Peptides