title: Structural insights of homotypic interaction domains in the ligand-receptor signal transduction of tumor necrosis factor (TNF).
abstract: Several members of tumor necrosis factor receptor (TNFR) superfamily that these members activate caspase-8 from death-inducing signaling complex (DISC) in TNF ligand-receptor signal transduction have been identified. In the extrinsic pathway, apoptotic signal transduction is induced in death domain (DD) superfamily; it consists of a hexahelical bundle that contains 80 amino acids. The DD superfamily includes about 100 members that belong to four subfamilies: death domain (DD), caspase recruitment domain (CARD), pyrin domain (PYD), and death effector domain (DED). This superfamily contains key building blocks: with these blocks, multimeric complexes are formed through homotypic interactions. Furthermore, each DD-binding event occurs exclusively. The DD superfamily regulates the balance between death and survival of cells. In this study, the structures, functions, and unique features of DD superfamily members are compared with their complexes. By elucidating structural insights of DD superfamily members, we investigate the interaction mechanisms of DD domains; these domains are involved in TNF ligand-receptor signaling. These DD superfamily members play a pivotal role in the development of more specific treatments of cancer. [BMB Reports 2016; 49(3): 159-166].
authors.affiliation: Department of Molecular Biology, College of Natural Sciences, Pusan National University, Busan 46241, Korea.
authors.forename: Young-Hoon
authors.initials: YH
authors.lastname: Park
authors.affiliation: Department of Molecular Biology, College of Natural Sciences, Pusan National University, Busan 46241, Korea.
authors.forename: Mi Suk
authors.initials: MS
authors.lastname: Jeong
authors.affiliation: Department of Molecular Biology, College of Natural Sciences, Pusan National University; Genetic Engineering Institute, Pusan National University, Busan 46241, Korea.
authors.forename: Se Bok
authors.initials: SB
authors.lastname: Jang
mesh_terms: D000818:Animals; D006801:Humans; D008024:Ligands; D005810:Multigene Family; D000072417:Protein Domains; D018124:Receptors, Tumor Necrosis Factor / Q000378:metabolism*; D015398:Signal Transduction; D048069:Tumor Necrosis Factors / Q000737:chemistry* / Q000378:metabolism*
chemical_list: D008024:Ligands; D018124:Receptors, Tumor Necrosis Factor; D048069:Tumor Necrosis Factors