CEP1 — Asparagus officinalis

Summary

A4U43_C05F32550, designated AoCEP1 in asparagus (Asparagus officinalis) on chromosome 5, encodes a cysteine protease of the papain-like family (Peptidase C1A) and contains granulin domains. The enzyme has thiol endopeptidase activity and is associated with proteinase-activated receptor binding. AoCEP1 is associated with proteolysis, nitrogen storage, cell differentiation, flower development, and pollen development. The protein localizes to the vacuole, lysosome, protein storage vacuole, and ER lumen. The gene is associated with anther and pollen development, reproductive structure development, and growth and developmental processes. Studies of related genes in other species link the family to stress responses, though this is not established for AoCEP1 itself.