Cardosin A is the major vacuolar aspartic proteinase (APs) (E.C.3.4.23) in pistils of Cynara cardunculus L. (cardoon). Plant APs carry a unique domain, the plant-specific-insert (PSI), and a pro-segment which are separated from the catalytic domains during maturation but the sequence and location of processing steps for cardosins have not been established. Here transient expression in tobacco and inducible expression in Arabidopsis indicate that processing of cardosin A is conserved in hetero...Expand abstract
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Processing and trafficking of a single isoform of the aspartic proteinase cardosin A on the vacuolar pathway.
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