N-Beta-Alanyldopamine (NBAD) is the primary catechol tanning agent precursor in typical brown or yellow insect cuticle. The insect integument enzyme responsible for the synthesis of NBAD was reported to be expressed solely ...

Dopamine (DA) and norepinephrine (NE) derivatives play an important role in the sclerotization and pigmentation of insect cuticles by serving as precursors for cuticular cross-linking. Protein preparations from prepupae ...