Entrez Summary: This gene encodes a single-pass type II membrane protein that is a member of the peptidase S9B family of serine proteases. This protein has no detectable protease activity, most likely due to the absence of the conserved serine residue normally present in the catalytic domain of serine proteases. However, it does bind specific voltage-gated potassium channels and alters their expression and biophysical properties. Variations in this gene may be associated with susceptibility to amyotrophic lateral sclerosis and with idiopathic ventricular fibrillation. Alternative splicing results in multiple transcript variants. [provided by RefSeq, Mar 2014].
UniProt Summary: Promotes cell surface expression of the potassium channel KCND2 (PubMed:15454437, PubMed:19441798). Modulates the activity and gating characteristics of the potassium channel KCND2 (PubMed:18364354). Has no dipeptidyl aminopeptidase activity (PubMed:8103397, PubMed:15476821). {ECO:0000269|PubMed:15454437, ECO:0000269|PubMed:18364354, ECO:0000269|PubMed:8103397, ECO:0000305|PubMed:15476821}.
Pfam DomainsGO Terms
Pfam Domains
DPPIV N
Peptidase S9
GO Terms
dipeptidyl-peptidase activity
potassium channel regulator activity
serine-type peptidase activity
regulation of potassium ion transmembrane transport
voltage-gated potassium channel complex
regulation of potassium ion transport
protein localization to plasma membrane
protein localization to cell periphery
regulation of cation transmembrane transport
regulation of metal ion transport
regulation of ion transmembrane transport
protein localization to membrane
regulation of transmembrane transport
regulation of ion transport
proteolysis
cellular protein localization
cellular macromolecule localization
regulation of transport
CRISPR Data
Compound HitMost Correlated Genes in ChemogenomicsTissues where Essential in the Avana Dataset (DepMap 20Q1)
Compound Hit
No hits were found.
Most Correlated Genes in Chemogenomics
No correlation found to any other genes in chemogenomics.
Tissues where Essential in the Avana Dataset (DepMap 20Q1)
Global Fraction of Cell Lines Where Essential: N/A