What is the primary function of rRNA?

Question

Sebastian Alvarez · Accepted Answer

rRNA (ribosomal RNA) run along the mRNA to align the amino acids up in the correct orientation for them to synthesize proteins.

Ribosomal RNA, or rRNA, is an abbreviation for sets of proteins that resemble ribosomes and travel along mRNAs to correctly align amino acids so that they can be synthesized into proteins.

Sebastian Alvarado · Answer

The primary function of rRNA is in protein synthesis - in binding to mRNA and tRNA, to ensure that the codon sequence of the mRNA is accurately translated into a protein.

The three-dimensional form of the ribosome's RNA core dictates the ribosome's structure. It is the RNA component of the ribosome and is necessary for protein synthesis in all living things. The rRNA has a unique three-dimensional shape that includes internal loops and helices that form three distinct sites within the ribosome: 1) P-site, which is used to anchor an incoming tRNA charged with an amino acid; 2) A-site, which is used to bind a growing polypeptide; and 3) E-site, which is where the tRNA briefly binds after peptide bond formation before exiting the ribosome. When the ribosome reaches a stop codon, polypeptide synthesis is stopped, and rRNA catalyzes the addition of a water molecule to the polypeptide in the P-site. Translation of the mRNA sequence requires the involvement of rRNA at every step - initiation, elongation, and termination. The reaction that forms a peptide bond between the amino acid in the A-site and the growing polypeptide chain in the P-site is catalyzed by the larger subunit of the ribosome.

Natalie Ahrens · Answer

undefined The primary function of ribosomal RNA (rRNA) is to serve as a structural and functional component of ribosomes during protein synthesis.