Cloning and expression of a plant homologue of the small subunit of the Golgi-associated clathrin assembly protein AP19 from Camptotheca acuminata. Academic Article uri icon


  • Clathrin-coated vesicles (CCVs) are involved in selective protein transport in eukaryotes. AP-1 and AP-2 are protein complexes found in the CCVs of the Golgi apparatus and the plasma membrane respectively. AP19 is the smallest polypeptide chain components of AP-1. We have identified a cDNA clone (CAP19) encoding a putative homologue for the assembly protein AP19 from the Chinese medicinal tree, Camptotheca acuminata. The deduced polypeptide contains 161 amino acids and has a predicted Mr of 18820. DNA blot analysis suggests that the AP19S of C. acuminata are encoded by a small gene family. CAP19 was expressed ubiquitously throughout the plant suggesting that it may be involved in general Golgi-mediated secretion.

published proceedings

  • Plant Mol Biol

altmetric score

  • 3

author list (cited authors)

  • Maldonado-Mendoza, I. E., & Nessler, C. L.

citation count

  • 16

complete list of authors

  • Maldonado-Mendoza, IE||Nessler, CL

publication date

  • December 1996