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. 2007 Mar 14;2(3):e291. doi: 10.1371/journal.pone.0000291

Figure 1. Nucleotide sequences of the MTT1 and MTT3 genes and flanking regions.

Figure 1

Selected segments of the complete macronuclear sequence assembly (about 4.4 Kb) including two Tetrahymena thermophila MT genes (MTT1 and MTT3). Amino acid sequences (one-letter code) are shown beneath the underlined coding regions of MTT1 and MTT3. Various motifs in sequence flanking both coding regions are indicated on the nucleotide sequence: MTCM1 (Metallothionein Conserved Motif 1) plus and minus strand matches (red and blue highlighted sequences, respectively); a perfect palindrome (boxed region) formed mostly by two inverted MTCM1 motif copies; a 16 nt conserved sequence in the putative 5′UTR of both genes (bold letters); TATA-like boxes (underlined italic letters); potential polyadenylation signals (white letters in black boxes); and potential mRNA degradation signal (bold pink letters in 3′ flanking region). The poly-A tail sites in MTT1 (DQ517937 and EF195745) and MTT3 (EF195744) are indicated by arrows.