This entry represents the C-terminal region of BTB/POZ domain-containing protein KCTD18. This domain is highly variable among the BTB domain-containing KCTD proteins and it has been proposed that it could be used to bind and recruit diverse cellular proteins destined for different processes such as ubiquitination and degradation or regulation of G-protein coupled receptors [1,2].

1: The KCTD family of proteins: structure, function, disease relevance. Liu Z, Xiang Y, Sun G; Cell Biosci. 2013;3:45. PMID:24268103

2: KCTD: A new gene family involved in neurodevelopmental and neuropsychiatric disorders. Teng X, Aouacheria A, Lionnard L, Metz KA, Soane L, Kamiya A, Hardwick JM; CNS Neurosci Ther. 2019;25:887-902. PMID:31197948