>tr|A0A0F8IEL4|A0A0F8IEL4_METMZ CRISPR-associated endonuclease Cas1 OS=Methanosarcina mazei GN=cas1 MKLLLLNGHGINMHVDGAKLHIKDGRFSTTEEPQEYVFSPKRIDIDGIIIYGKSGNLTLE AIRWLIKHNVQVSILDWNGKLLTTMLPPESTNLRTKFAQYHAFEDKEARLEIAKKFIEAK FYKSKAVLDFLSQRYPEINFDILDGLTKLKDVKSTREILGVEGTLAGKYWIEFSKAVPKE YDFCNRIDQFRRAMGSGDMINTMLNYGYSLLEAECLKAINSVGLDTHVGFLHEMAPSKNS LAYDLQEPFRFIVDLAVISLIESGAMESKDFIRTENYNLRLKPTGARKIVNEFSNTLNKK VSYQGKESTWSYVIFLKVRELAHYLTSKKEKLDFTKPEYEIERIDSYDIRQKILSISYVD WKKLGFSKGTLHYMKQNAKSDKPFTLNAHVLERVNKWEALVSSQR