Usually encoded in the trnK tRNA gene intron. Probably assists in splicing its own and other chloroplast group II introns (By similarity). MEKFEGYSEKQKSRQQYFVYPLLFQEYIYAFAHDYGLNGSEPVEIVSWNNKKFSSLLVKRLIIRMYQQNFLDNSVNHPNQDRLLDYKIFFYSEFYSQILSEGFAIVVEIPFSLRELSCPKEKEIPKFQNLRSIHSIFPFLEDKFLHLDYLSHIEIPYPIHLEILVQLLQYRIQDVPSLHLLRFFLNYYSNWNSFITSMKSILFFQKENKRLVKFLYNSYVSEYEFFLLFLRKQSSCLPLAYSGTFLERIHFSRKMEHFGIMYPGFSRKTLWFFMDPLIHYVRYQGKAILASKGSFFLKKKWKCYLINFWQYYFFFWTQPRRIHINQLANSCFDFMGYLSSVPKSPLLVRNQMLENSFLIDTRMKKFDTIVPATLLIGYLSKAQFCTGSGHPISKPIWTDLSDWDILDRFGRICRNLFHYHSGSSKKRTLYRLKYILRLSCARTLARKHKSTVRTFMQRLGSAFLEEFFTEEEQVFSLMFTKTTLFSFSGSHTERIWYLDIIGINDLVNPLN Intron maturase matK Maturase K 511 MATK_HORVS