6 Answers - What is the function of tRNA in biology? - …
What is the difference between mRNA and tRNA
Certain nascent peptide chains are able to regulate ribosome functionwhile they are still being synthesized, i.e., when they are still insidethe ribosomal exit tunnel. One of the classical examples is TnaC, aleader peptide of the tryptophanase operon in . At highconcentrations of tryptophan, TnaC stalls the ribosome, inhibitingtermination of its synthesis. Through an intricate gene regulatorymechanism, stalling ultimately leads to the expression of genesresponsible for degrading tryptophan.
What Is the Role of RNA in Protein Synthesis
After the accommodation of the tRNA brought by EF-Tu and successful peptidyl transfer, the ribosome is able to spontaneously undergo an intersubunit rotation (Fig. 1 (i) to (ii)). In this state the tRNAs assume a hybrid occupation relative to the ribosome: while the anticodon is still located in the original site on the small subunit, the other end of the tRNA is shifted to the next binding site on the large subunit generating so called A/P and P/E hybrid states. The P/E tRNA engages in interactions with the L1 stalk, a very dynamic part of the ribosome. These interactions are thought to stabilize the hybrid state. Interestingly, based on FRET experiments it seems that the initiator tRNA interacts weaker with the L1 stalk.
Transfer RNA (tRNA) – transfers ..
Inside every cell, ribosomes read mRNA sequences and hook together protein building blocks called amino acids in the order specified by the code: Groups of three nucleotides in mRNA code for each of 20 amino acids.