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What is the sequence of events that happens during protein synthesis?
Wiki User
∙ 13y ago
this is what my anatomy & physiology book states...
1. an mRNA molecule binds to the small ribosomal subunit at the mRNA biding site. A special tRNA, called initiator tRNA, binds to the start codon (AUG) on mRNA, where translation begins. The tRNA anticodon (UAC) attaches to the mRNA codon (AUG) by pairing between the complementary bases. Besides being the start codon, AUG is also the codon for the amino acid methionine. Thus, methionine is always the first amino acid in a growing polypeptide
2. Next, the large ribosomal subunit attaches to the small ribosomal subunit-mRNA complex, creating a functional ribosome. The initiator tRNA, with its amino acid (methionine), fits into the P site of the ribosome.
3. The anticodon of another tRNA with its attached amino acid pairs with the second mRNA codon at the A site of the ribosome.
4. A component of the large ribosomal subunit catalyzes the formation of a peptide bond between methionine, which separates from its tRNA at the P site, and the amino acid carried by the tRNA at the A site.
5. After peptide bond formation, the empty tRNA at the P site detaches from the ribosome, and the ribosome shifts the mRNA strand by one codon. The tRNA in the A site bearing the two-peptide protein shifts into the P site, allowing another tRNA with its amino acid to bind to a newly exposed codon at the A site. Steps 3 through 5 occur repeatedly, and the protein lengthens progressively.
6. Protein synthesis ends when the ribosome reaches a stop codon at the A site, which causes the completed protein to detach from the final tRNA. When the tRNA vacates the A site, the ribosome splits into its large and small subunits.
In your book (probably), the titles it gives are
"1: Messenger RNA Production
2: Messenger RNA Attaches to a Ribosome
3: Transfer RNA Attaches to Messenger RNA
4: Protein Production Continues
Wiki User
∙ 13y ago
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During protein synthesis messenger RNA what?
Messenger RNA molecules are fed through the ribosomes during protein synthesis.
Protein synthesis occurs at this organelle?
mRNA functions as a messenger from the original DNA helix in the 'nucleus' (transcription), and is then transported to the 'cytoplasm' where the information in the mRNA is translated (translation) into a sequence of amino acids making up a polypeptide.
Why must RNA be made during protein synthesis?
RNA must be made during protein synthesis because protein synthesis needs to go through this process in order to transfer organelles and the functions of DNA
What happens during translation and where does it occur?
Usually on the rough endoplasmic reticulum.
During which stage do two tRNAs properly align their two ammino acids so that they may be chemically attached to one another?
This occurs during translation of protein synthesis. This happens in elongation stage of translation .
Why does a detetion mutation usually cause more defect during protein synthesis than point mutation?
Mutation usually causes the entire base sequence to defect. This usually happens during the protein synthesis.
During protein synthesis the nucleotide sequence specific a particular species of?
tRNA
During protein synthesis the nucleotide sequence specifies a particular species of?
It is tRNA
What is primary structure of a protein and what causes it?
Primary structure of the protein is simply its amino acid sequence. It is the sequence in which amino acids are added during protein synthesis.
During protein synthesis what happens to amino acids?
During protein synthesis, the amino acids are linked together by peptide bonds. This process is carried out by the ribosomes.
Does protein synthesis have three continuous bases?
During protein synthesis, three continuous bases on a messenger RNA (mRNA) molecule, known as a codon, encode different amino acids. Codons on the mRNA are translated into the amino acid sequence of a protein by the ribosome.
WHAT DOES During protein synthesis messengers RNA?
Messenger RNA molecules are fed through the ribosomes during protein synthesis.
During protein synthesis messenger RNA what?
Messenger RNA molecules are fed through the ribosomes during protein synthesis.
Protein synthesis occurs at this organelle?
mRNA functions as a messenger from the original DNA helix in the 'nucleus' (transcription), and is then transported to the 'cytoplasm' where the information in the mRNA is translated (translation) into a sequence of amino acids making up a polypeptide.
Why must RNA be made during protein synthesis?
RNA must be made during protein synthesis because protein synthesis needs to go through this process in order to transfer organelles and the functions of DNA
What is made during initiation of protein synthesis?
During initiation phase of protein synthesis , most important thing formed is initiation complex .
What happens during translation and where does it occur?
Usually on the rough endoplasmic reticulum.
