Provided herein are specific TRAIL receptor agonist proteins, nucleic acids encoding the same, and methods of treating a subject having a TRAIL-associated disease or disorder. The TRAIL receptor agonist proteins provided herein comprise three soluble TRAIL domains and an Fc fragment. The TRAIL receptor agonist proteins are substantially non-aggregating and suitable for therapeutic, diagnostic and/or research applications.Mevcut buluş, tek zincirli TRAIL-reseptörü agonist proteinleri ile ilgilidir.