XSP1 (XYLEM SERINE PEPTIDASE 1); subtilase. Identical to Xylem serine proteinase 1 precursor (XSP1) [Arabidopsis Thaliana] (GB:Q9LLL8;GB:O81324); similar to subtilase family protein [Arabidopsis thaliana] (TAIR:AT5G03620.1); similar to unnamed protein product [Vitis vinifera] (GB:CAO15943.1); similar to unnamed protein product [Vitis vinifera] (GB:CAO24453.1); contains InterPro domain Protease-associated PA (InterPro:IPR003137); contains InterPro domain Peptidase S8 and S53, subtilisin, kexin, sedolisin; (InterPro:IPR000209); contains InterPro domain Proteinase inhibitor I9, subtilisin propeptide; (InterPro:IPR010259); contains InterPro doma