0
The eukaryotic initiation complex locates the true start codon by scanning the mRNA molecule from the 5' cap, aided by initiation factors. The complex recognizes the start codon (usually AUG) in a favorable sequence context and assembles around it to initiate translation.
Add your answer:
Earn +20 pts
How is translation initiated in cell biology?
Translation in cell biology is initiated when the ribosome binds to the mRNA molecule. The initiation complex is formed with the help of initiation factors, and the process begins at the start codon AUG. Once the ribosome is properly positioned, the translation of the mRNA into a protein can proceed.
What amino acid is encoded by the initiation codon AUG?
Methionine is the amino acid encoded by the initiation codon AUG. It serves as the start codon for protein translation in most organisms.
What are three stages of translation?
The three stages of translation are initiation, elongation, and termination. Initiation involves the binding of mRNA, tRNA, and ribosome to form the initiation complex. During elongation, the ribosome moves along the mRNA, reading the codons and adding corresponding amino acids to the growing polypeptide chain. Termination occurs when a stop codon is reached, leading to the release of the completed protein and disassembly of the ribosome complex.
Why methionine is the first amino acid in every growing polypeptide?
Start Codon Methionine's code is AUG which is also a start codon causing initiation of translation.
What tells the ribosome to begin making a polypeptide?
The ribosome is signaled to begin making a polypeptide by the start codon (AUG) present in the messenger RNA (mRNA) sequence. This start codon specifically codes for the amino acid methionine, which marks the initiation point for protein synthesis.
Where does initiation of translation occur?
An initiation complex for translation forms by the assembly of the ribosomal subunits and initiator tRNA (met-tRNA) at the start codon on the mRNA.
The initiation codon for the process of protein synthesis in eukaryotes is?
AUG
What is the initiation code on the m-rna that the ribosome recognizes?
Recognition of the initiation codon is generally mediated by base-pairing
How is translation initiated in cell biology?
Translation in cell biology is initiated when the ribosome binds to the mRNA molecule. The initiation complex is formed with the help of initiation factors, and the process begins at the start codon AUG. Once the ribosome is properly positioned, the translation of the mRNA into a protein can proceed.
What amino acid is encoded by the initiation codon AUG?
Methionine is the amino acid encoded by the initiation codon AUG. It serves as the start codon for protein translation in most organisms.
What is the step of translation in which an mRNA a small ribosomal subunit and the initiator tRNA are aligned together is?
The step of translation in which an mRNA, a small ribosomal subunit, and the initiator tRNA are aligned together is called initiation. This process occurs with the formation of the initiation complex, where the mRNA binds to the small ribosomal subunit and the initiator tRNA carrying methionine binds to the start codon on the mRNA.
What are the three stages called for Initiation elongation and termination?
The three stages in protein synthesis are initiation, elongation, and termination. In initiation, the ribosome assembles on the mRNA and finds the start codon. During elongation, amino acids are added to the growing polypeptide chain. Termination occurs when a stop codon is reached, signaling the end of protein synthesis.
What codon must every mRNA begin with?
Every mRNA must begin with the start codon AUG, which codes for the amino acid methionine. This start codon marks the site where translation should begin on the mRNA molecule.
Which codon engages a ribosome to start translating mrna molecule?
because of the big penises all around it cumming on it. That's Why.
What is the start codon for each?
ATG is the prominent start codon for most of the Eukaryotic proteins, other start codons such as CTG also exist in other species.
What is the base sequence for the mRNA start codon?
The base sequence for the mRNA start codon is AUG. It codes for the amino acid methionine and signals the initiation of protein synthesis.
Difference between kozak sequence and Shine-Dalgarno sequence?
The Kozak sequence is a short sequence surrounding the start codon in eukaryotic mRNA that helps in the initiation of translation. The Shine-Dalgarno sequence is a purine-rich sequence in bacterial mRNA that helps in ribosome binding and initiation of translation by base pairing with the 16S rRNA in the small ribosomal subunit. Both sequences play crucial roles in initiating protein synthesis in their respective organisms.
