KuljetusRNA
KuljetusRNA, also known as transfer RNA or tRNA, is a crucial molecule in the process of protein synthesis within living cells. It acts as an adapter, bridging the gap between the genetic code carried by messenger RNA (mRNA) and the amino acids that are assembled into proteins. Each tRNA molecule has a specific structure that allows it to bind to a particular amino acid and also to recognize a corresponding three-nucleotide sequence on the mRNA, called a codon.
The structure of tRNA is often depicted as a cloverleaf in two dimensions, but it folds into
During translation, ribosomes move along the mRNA molecule. As each codon is exposed, a tRNA molecule with