LSINCT5 is over expressed in breast and ovarian cancer and affects cellular proliferation.

More than 98% of the human genome is comprised of non-protein coding sequences. Interestingly, a considerable fraction of these sequences is transcribed into non-protein coding RNA transcripts. These transcripts range in size from very small RNAs such as the miRNAs (20-25 base pairs) to transcripts that can range up to 100 kb or more.