Inactive dipeptidyl peptidase 10, also called Dipeptidyl peptidase IV-related protein 3, Dipeptidyl peptidase X, Dipeptidyl peptidase-like protein 2, is a single-pass type II membrane protein which belongs to the peptidase S9B family, DPPIV subfamily. It is expressed in brain, pancreas, spinal cord and adrenal glands, and may form oligomers. This protein has no dipeptidyl aminopeptidase activity. It may modulate cell surface expression and activity of the potassium channels KCND1 and KCND2. Genetic variations in DPP10 are associated with susceptibility to asthma.Alternative Names: Inactive dipeptidyl peptidase 10, also called Dipeptidyl peptidase IV-related protein 3, Dipeptidyl peptidase X, Dipeptidyl peptidase-like protein 2, is a single-pass type II membrane protein which belongs to the peptidase S9B family, DPPIV subfamily.