How are ribosomes recycled?

ConnerMiskowiec ∙

Lvl 1

∙ 10y ago

Updated: 8/21/2019

After translation stops and the polypeptide chain has been released, the ribosome needs to dissociate off of the mRNA transcript. A Ribosome Recycling Factor (RRF) will insert itself into the A-pocket of the ribosome (this A-pocket still contains a stop codon). Elongation Factor G (EF-G) then binds to the RRF. This binding stimulates the release of the two tRNAs that are in the P and E pockets of the ribosome. The RRF and the EF-G are then displaced from the ribosome. The mRNA is also released and the two halves of the ribosome are allowed to dissociate.
Afterwards, the small ribosomal subunit is either bound by IF1 an IF3 or elF1 and eLF1A depending on the organism being a prokaryote or eukaryote. These proteins block tRNAs from entering into its E and A pockets.

Wiki User

∙ 10y ago

What else can I help you with?

What does ribosomes do with it leftovers or waste?

Ribosomes do not produce waste. Any leftover components or molecules from protein synthesis are typically recycled by the cell through other cellular processes such as autophagy or proteasomal degradation pathways.

The sites of protein synthesis are?

Protein synthesis occurs at ribosomes, which can be found in the cytoplasm of a cell. In eukaryotic cells, proteins can also be synthesized on ribosomes located on the rough endoplasmic reticulum.

What tiny organelles are attached to the ER?

ribosomes

What are unattached ribosomes in the cytosol called?

Free ribosomes.

What are the differences between prokaryotic ribosomes and eukaryotic ribosomes?

Prokaryotic ribosomes are smaller (70S) compared to eukaryotic ribosomes (80S). Prokaryotic ribosomes consist of a 30S and a 50S subunit, while eukaryotic ribosomes consist of a 40S and a 60S subunit. Prokaryotic ribosomes have fewer proteins compared to eukaryotic ribosomes.

What organelles read codes genetic measages?

Ribosomes are the organelles that read coded genetic messages. Ribosomes can be found in all living cells.

What type of cell is ribosomes?

Ribosomes are organelles. All cells have ribosomes.

Do plantcells have ribosomes?

Yes they contain ribosomes.80S ribosomes are found in them.

Are ribosomes in protests?

Yes they contain ribosomes.80S ribosomes are found in them.

Amino acids that are not yet part of a polypeptide are found in which part of the cell?

Amino acids that are not part of a polypeptide are typically found in the cytoplasm of a cell. They are either freshly synthesized by ribosomes or recycled from proteins that have been degraded.

What does the cells ribosomes do in the plant cell?

The ribosomes are the site of protein synthesis.

What is the Ribosomes found in?

Cells are not found in ribosomes. Ribosomes are found in (eukaryotic) cells.

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