Potassium channel tetramerisation-type BTB domain (IPR003131)

Short name: T1-type_BTB

Domain relationships


This domain can be found at the N terminus of voltage-gated potassium channel proteins, where represents a cytoplasmic tetramerisation domain (T1) involved in assembly of alpha-subunits into functional tetrameric channels [PMID: 9886290]. This domain can also be found in proteins that are not potassium channels, like KCTD1 (potassium channel tetramerisation domain-containing protein 1). KCTD1 is though to be a nuclear protein that functions as a transcriptional repressor. In KCTD1, the T1-type BTB domain mediates homomeric protein-protein interactions [PMID: 18358072, PMID: 19115315].

GO terms

Biological Process

GO:0051260 protein homooligomerization

Molecular Function

No terms assigned in this category.

Cellular Component

No terms assigned in this category.

Contributing signatures

Signatures from InterPro member databases are used to construct an entry.