>P1;1mk0a- structureX:1mk0a-: 1 : A : 97 : A: intron-associated endonuclease 1: bacteriophage t4: 1.60: 0.197 MKSGIYQIKNTLNNKVYVGSAKDFEKRWKRHFKDLEKGCHSSIKLQRSFNKHGNVFECSILEEIPYEKDLIIERA NFWIKELNSKINGYNIADATFG*