Proprotein Convertase Subtilisin/Kexin Type 6 (PCSK6)

Proprotein convertase subtilisin/kexin type 6 is an enzyme that belongs to the subtilisin-like proprotein convertase family. The members of this family are proprotein convertases that process latent precursor proteins into their biologically active products. This encoded protein is a calcium-dependent serine endoprotease that can cleave precursor protein at their paired basic amino acid processing sites. Each PACE4 isoform exhibits a unique restricted distribution. PACE4A-I is expressed in heart, brain, placenta, lung, skeletal muscle, kidney, pancreas, but at comparatively higher levels in the liver. PACE4A-II is at least expressed in placenta. PACE4B was only found in the embryonic kidney cell line from which it was isolated. PACE4C and PACE4D are expressed in placenta.