Formerly dpj. This enzyme adds the prosthetic group, phosphopantethiene, to the acyl carrier protein (ACP) apo-enzyme to generate the holo-enzyme. Related phosphopantethiene--protein transferases also exist. There is an orthologous domain in eukaryotic proteins. [Fatty acid and phospholipid metabolism, Biosynthesis]
Jiyao W et al.(2023). "The conserved domain database in 2023.",