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The structure of GAS5 in the human genome. The yellow boxes represent the 12 exons of human GAS5, the brown line represents 11 introns, and the green boxes represent 10 snoRNAs. The number above the gene indicates the length of the exon, and the bottom of the gene is the symbol of snoRNA. It is pointed out that alternative splicing of exon 7 may transcribe two mature lncRNAs, named GAS5a and GAS5b, respectively. The former is 39 bases longer than the latter.
