Editing COPII (section)

{{Short description|Cell structure involved in protein transport}}
{{for|the 1996 United Nations Climate Change Conference in Geneva, Switzerland|COP 2 (climate conference)}}

The '''Coat Protein Complex II''', or '''COPII''', is a group of [[protein]]s that facilitate the formation of [[Vesicle (biology and chemistry)|vesicle]]s to transport proteins from the [[endoplasmic reticulum]] to the [[Golgi apparatus]] or [[endoplasmic-reticulum–Golgi intermediate compartment]]. This process is termed [[Axoplasmic transport#Anterograde transport|anterograde transport]], in contrast to the [[Axoplasmic transport#Retrograde transport|retrograde transport]] associated with the [[COPI]] complex. COPII is assembled in two parts: first an inner layer of Sar1, Sec23, and Sec24 forms; then the inner coat is surrounded by an outer lattice of Sec13 and Sec31.