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],
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Function:
Disease:Genetic variation in DPP6 may influence susceptibility to amyotrophic lateral sclerosis (ALS). ALS is a severely disabling and lethal disorder caused by progressive degeneration of motor neurons in the brain, spinal cord and brainstem.,Function:May be involved in the physiological processes of brain function. Has no dipeptidyl aminopeptidase activity. May modulate the cell surface expression and the activity of the potassium channel KCND2.,similarity:Belongs to the peptidase S9B family.,subunit:Homodimer. Binds KCND2.,tissue specificity:Expressed predominantly in brain.,
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Cellular Localization:
Cell membrane ; Single-pass type II membrane protein .