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no translation occur bcoz the polypeptide chain formed at p site , a for attachment, p for polypeptide bond formation, e for exit site. so .......................................?

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Is Initiation the second step in translation?

No, Initiation is the first step in translation. It involves the binding of mRNA to the small subunit of the ribosome, which marks the beginning of the translation process.


When the mrna leaves the nucleusit binds to?

When mRNA leaves the nucleus, it binds to ribosomes in the cytoplasm. This binding facilitates the process of translation, where the ribosome reads the mRNA sequence and synthesizes a corresponding protein by linking together the appropriate amino acids. Additionally, mRNA may associate with various translation factors and tRNA molecules to aid in protein synthesis.


What step in translation release factors bind to stop codon?

During translation, when the ribosome reaches a stop codon on the mRNA, release factors bind to the ribosome. Specifically, in eukaryotes, the protein eRF1 recognizes the stop codon and binds to it, while in prokaryotes, the release factor RF1 or RF2 performs this function. This binding triggers the release of the newly synthesized polypeptide chain from the tRNA in the P site of the ribosome, ultimately leading to the disassembly of the translation machinery.


What does ribosome bound mean?

"Ribosome bound" refers to the state of a messenger RNA (mRNA) molecule that is attached to a ribosome during the process of translation. In this context, the ribosome reads the mRNA sequence to synthesize a corresponding protein by linking together amino acids in the order specified by the mRNA. This binding is crucial for protein synthesis, as it facilitates the decoding of the genetic information contained in the mRNA.


What is 40s in ribosome?

The S is the Svedberg unit, used to express sedimentation coefficients of biomolecules and cell components. It is essentially an express of speed. The smaller the S value, the slower the molecule moves in a centrifuge. Sedimentation coefficients are not additive. A 70S ribosome is composed of a 50S subunit and a 30S subunit.

Related Questions

Where do Ribosomes bind on mRNA?

Ribosomes bind to the 5' untranslated region (5' UTR) of mRNA, specifically at a sequence called the ribosome-binding site (RBS) or Shine-Dalgarno sequence in prokaryotes. This interaction helps initiate translation by positioning the ribosome at the start codon.


How many binding sites are found on the ribosomes?

The ribosome has three sites for binding. It binds RNA and DNA so that they can be matched to their complementary base pair.


What subcellular structure is involved in translation?

In translation (RNA to Protein) a ribosome attaches to an mRNA strand and uses the mRNA to create a protein. There are other types of RNA and protein that can modify the mRNA strand but ribosomes are the main structure involved in translation.


Is Initiation the second step in translation?

No, Initiation is the first step in translation. It involves the binding of mRNA to the small subunit of the ribosome, which marks the beginning of the translation process.


Observe how the mRNA interacts with the ribosome in the simulation. How is this interaction similar to what actually happens in translation?

The interaction between mRNA and ribosomes in the simulation is meant to reflect the process of translation that occurs in cells. During translation, the ribosome uses the information stored in the mRNA molecule to synthesize a protein. The ribosome moves along the mRNA molecule and reads its codons (sets of three nucleotides) to determine which amino acids should be added to the growing polypeptide chain. In the simulation, the mRNA molecule is represented as a linear sequence of codons, and the ribosome is represented as a moving object that recognizes and interacts with the codons. The ribosome moves along the mRNA and recognizes each codon by binding to it. This interaction is similar to what happens in real cells, where the ribosome recognizes codons by binding to specific sites on the mRNA molecule. In the simulation, the ribosome can also interact with tRNA molecules, which bring the correct amino acids to the ribosome for incorporation into the growing polypeptide chain. This is similar to what happens in real cells, where tRNA molecules bring the correct amino acids to the ribosome for use in protein synthesis. Overall, the interaction between mRNA and ribosomes in the simulation is meant to closely resemble the process of translation that occurs in cells.


When the mrna leaves the nucleusit binds to?

When mRNA leaves the nucleus, it binds to ribosomes in the cytoplasm. This binding facilitates the process of translation, where the ribosome reads the mRNA sequence and synthesizes a corresponding protein by linking together the appropriate amino acids. Additionally, mRNA may associate with various translation factors and tRNA molecules to aid in protein synthesis.


How does tetracycline affect a bacterial cell?

The antibiotic binds to the ribosome of the prokaryotic cell, so it inhibits the proteins translation, hence the cell dies. You have to consider that prokariotic ribosome it´s different to eukaryotic ribosome, so this antibiotic doesn´t affect our cells, only the target bacteria


What is the role of mRNA after it leaves the nucleus and enters the cytoplasm of a eukaryotic cell?

Once mRNA leaves the nucleus and enters the cytoplasm of a eukaryotic cell, it serves as a template for protein synthesis during translation. Ribosomes in the cytoplasm "read" the mRNA sequence and use it to assemble amino acids into a polypeptide chain, ultimately leading to the production of a specific protein.


How do you stop protein synthesis?

Protein synthesis can be stopped by blocking translation, primarily by inhibiting the functions of ribosomes or tRNA molecules in the cell. For example, antibiotics like puromycin can prematurely terminate protein synthesis by mimicking the structure of aminoacyl-tRNA and binding to the A site on the ribosome. Additionally, certain drugs or compounds can target key components of the translation machinery to halt protein synthesis.


What happens at the end of translation in the p site?

the amino acids detach from the ribosome


What process takes place in the Ribosome?

The ribosome is responsible for protein synthesis, where it translates mRNA into a specific amino acid sequence to create proteins. This process involves the binding of transfer RNA (tRNA) molecules carrying amino acids to the ribosome, which then links the amino acids together to form a protein chain.


Observe how the mRNA interacts with the ribosome in the simulation. How is this interaction different than what actually happens in translation?

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