signal peptide peptidase family protein. similar to peptidase [Arabidopsis thaliana] (TAIR:AT1G01650.2); similar to peptidase [Arabidopsis thaliana] (TAIR:AT1G01650.1); similar to unknown [Populus trichocarpa] (GB:ABK95465.1); contains InterPro domain Peptidase A22, presenilin signal peptide; (InterPro:IPR006639); contains InterPro domain Peptidase A22B, signal peptide peptidase; (InterPro:IPR007369)