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. Author manuscript; available in PMC: 2014 Oct 1.
Published in final edited form as: Nat Biotechnol. 2014 Mar 16;32(4):341–346. doi: 10.1038/nbt.2850

Figure 3. GRIT annotation of D. Melanogaster.

Figure 3

(a) Ptth. The Ptth gene encodes isoforms with multiple proteins due to alternative N-terminal splicing as well as promoter usage. The sample labeled “Imaginal Disc” corresponds to mass isolated tissues enriched more than 50% for imaginal discs. (b) Gene complexity. Although most genes have less than five isoforms, nearly half of transcript isoforms originate in genes that encode 100 or more distinct transcripts. (c) Sources of gene complexity. The Venn digram represents the 59.6% of genes that encode multiple transcript isoforms.