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Fig. 1 | Mobile DNA

Fig. 1

From: Mobile group I introns at nuclear rDNA position L2066 harbor sense and antisense homing endonuclease genes intervened by spliceosomal introns

Fig. 1

Consensus secondary structure diagram of L2066 group I introns in myxomycetes and ascomycetes based on 153 nucleotide positions in the catalytic core common among all introns from 34 taxa (see Table 1). Sequence size variations are noted in peripheral regions, and homing endonuclease genes (HEGs) are found as P9 extensions. P1-P10, paired RNA segments; 5′ SS and 3′SS, exon-intron splice sites. Invariant nucleotide positions are shown as red uppercase letters. Black uppercase letter, > 90% conservation; lowercase letters, ≥ 50% conservation; filled circles, < 50% conservation

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