CEP1 — Asparagus officinalis

Summary

A4U43_C02F15690 (CEP1) in asparagus (Asparagus officinalis) encodes a cathepsin propeptide inhibitor domain-containing protein belonging to the papain-like cysteine peptidase superfamily, with thiol endopeptidase and cysteine-type peptidase activity. The gene is associated with proteolysis, leaf senescence, and programmed cell death involved in cell development. It has been linked to responses to the hormones gibberellin, ethylene, and abscisic acid, as well as to NO storage. The encoded protein localises to the senescence-associated vacuole, lysosome, vacuole, and extracellular space. Studies of related genes in other species connect the family to similar processes of senescence and proteolysis.