CEP1 — Asparagus officinalis

Summary

A4U43_C02F9430 (CEP1) in asparagus encodes a peptidase C1A papain C-terminal domain-containing protein with thiol endopeptidase and cysteine-type peptidase activity. It is associated with proteolysis, programmed cell death involved in cell development, and leaf senescence. The gene is linked to responses to abscisic acid, ethylene, and gibberellin, as well as to NO storage. Its product localizes to the senescence-associated vacuole, lysosome, protein storage vacuole, aleurone body, and ER lumen. Studies of related genes in other species, such as fruit bromelain and cysteine proteinase SAG39, link the family to additional proteolytic processes.