CEP1 — Asparagus officinalis

Summary

A4U43_C01F1380 (CEP1) in asparagus (Asparagus officinalis) encodes a cysteine protease of the papain-like family, containing granulin and peptidase C1A domains, with thiol endopeptidase activity and proteinase-activated receptor binding. The gene is associated with proteolysis, nitrogen storage, cell differentiation, flower and pollen development, and reproductive structure development. Its product localises to the vacuole, lysosome, protein storage vacuole, cytoplasmic vesicle, and ER lumen. Studies of related genes in other species link the family to low-temperature-induced cysteine proteinases and actinidin, though these associations are not established for this asparagus gene.