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. 2012 Feb 27;7(2):e29527. doi: 10.1371/journal.pone.0029527

Figure 3. Transcription start sites (TSS) are species and tissue specific.

Figure 3

TSS identified in the promoter of NAGS by 5′RACE analysis (blue circles), the Database of Transcriptional Start Sites (DBTSS) (green circles) and 5′ termination sites of Expressed Sequence Tags (ESTs) from Genbank (orange circles) were aligned on the DNA sequence 5′ of the human (A) and mouse (B) NAGS coding sequence. The arrow indicates the translation start site.