One of the surprising findings coming from the human genome project and subsequent studies is the large number of genes that encode functional RNAs.? What are some examples of functional RNA genes (gene classes) and what are the functions of each class?
- Examples of functional RNA are:
- 1. Ribosomal RNA (rRNA): 16s and 18s RNA functions as part of the components of the mitochondrial and cytoplasmic ribosome, respectively.
- 2. Small Nuclear RNA (snRNA): involved in transcription regulation. U1, U2, U4, U5 process GU-AG introns.
- 3. Long regulatory RNAs: can act as trans-acting regulator: HOTAIR acts in trans(acts on some other part of a gene that gets transcribed).