UniProt Summary: Potassium channel subunit that does not form functional channels by itself. Modulates KCNB1 and KCNB2 channel activity by shifting the threshold for inactivation to more negative values and by slowing the rate of inactivation. Can down-regulate the channel activity of KCNB1, KCNB2, KCNC4 and KCND1, possibly by trapping them in intracellular membranes. {ECO:0000269|PubMed:8670833, ECO:0000269|PubMed:9079713}.
Pfam DomainsGO Terms
Pfam Domains
Ion trans 2
Ion trans
K tetra
GO Terms
ion channel inhibitor activity
potassium channel regulator activity
voltage-gated potassium channel activity
voltage-gated potassium channel complex
potassium ion transmembrane transport
potassium ion transport
protein homooligomerization
monovalent inorganic cation transport
regulation of ion transmembrane transport
protein complex oligomerization
inorganic cation transmembrane transport
regulation of transmembrane transport
cation transmembrane transport
metal ion transport
inorganic ion transmembrane transport
regulation of ion transport
cation transport
ion transmembrane transport
transmembrane transport
ion transport
integral component of plasma membrane
protein-containing complex assembly
protein-containing complex subunit organization
regulation of transport
CRISPR Data
Compound HitMost Correlated Genes in ChemogenomicsTissues where Essential in the Avana Dataset (DepMap 20Q1)