Types of RNA
- There are three major types of RNAs
- mRNA (messenger RNA),
- tRNA (transfer RNA),
- rRNA (ribosomal RNA).
- All three RNAs are needed to synthesize a protein in a cell.
- The mRNA provides the template, tRNA brings amino acids and reads the genetic code, and rRNAs play structural and catalytic role during translation
Structure of tRNA
- The tRNA, also called as sRNA (soluble RNA) has a role as an adapter molecule.
- tRNA has an anticodon loop that has bases complementary to the code.
- It has an amino acid accepter end to which it binds to amino acids.
- The secondary structure of tRNA looks like a clover-leaf.
- In actual structure, the tRNA is compact molecule which looks like inverted L.
tRNA
