ATPREP1/ATZNMP (PRESEQUENCE PROTEASE 1); metalloendopeptidase. Identical to Presequence protease 1, chloroplast/mitochondrial precursor (PREP1) [Arabidopsis Thaliana] (GB:Q9LJL3;GB:Q8RUN6); similar to ATPREP2, metalloendopeptidase [Arabidopsis thaliana] (TAIR:AT1G49630.1); similar to ATPREP2, metalloendopeptidase [Arabidopsis thaliana] (TAIR:AT1G49630.3); similar to ATPREP2, metalloendopeptidase [Arabidopsis thaliana] (TAIR:AT1G49630.2); similar to hypothetical protein OsI_008851 [Oryza sativa (indica cultivar-group)] (GB:EAY87618.1); similar to unnamed protein product [Vitis vinifera] (GB:CAO47789.1); similar to hypothetical protein OsJ_008