UDP-4-amino-4,6-dideoxy-N-acetyl-beta-L-altrosamine N-acetyltransferase (, PseH) is an enzyme with systematic name acetyl-CoA:UDP-4-amino-4,6-dideoxy-N-acetyl-beta-L-altrosamine N-acetyltransferase. This enzyme catalyses the following chemical reaction
This enzyme is isolated from Helicobacter pylori.