what is T ψ c loop? what t and c represent? what's its purpose?
Answers
Answer:
Transfer RNAs or tRNAs are molecules that act as temporary carriers of amino acids, bringing the appropriate amino acids to the ribosome based on the messenger RNA (mRNA) nucleotide sequence. In this way, they act as the intermediaries between nucleotide and amino acid sequences.
tRNAs are ribonucleic acids and therefore capable of forming hydrogen bonds with mRNA. Additionally, they can also form ester linkages with amino acids, and therefore, can physically bring mRNA and amino acids together during the process of translation. They pair with mRNA in a complementary and antiparallel manner, and each tRNA can base pair with a stretch of three nucleotides on mRNA. These sets of three nucleotides on the mRNA are called codons and the corresponding sequence on the tRNA is called the anticodon. Base pairing between the codon and anticodon brings specificity to the process of translation. On one end of the tRNA, an appropriate amino acid is attached to its 3’ hydroxyl group based on the anticodon and the ribosome catalyzes the formation of a peptide bond between this amino acid and the elongating polypeptide chain.