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why methionin act as first aminoacid in protein synthesis?
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Answer / vivek
because Methionine is having single codon, and its conserved
for all species, some variation in sense of formyl
methionine in microbes.
as above stated answer is equally true
| Is This Answer Correct ? | 21 Yes | 4 No |
Answer / pinga
because methionine have starting codon for protein
sythesis
| Is This Answer Correct ? | 20 Yes | 7 No |
Answer / maniprasad
Start Codon Methionine's code is AUG which is also a start
codon causing initiation of translation.
| Is This Answer Correct ? | 15 Yes | 6 No |
Answer / guest
The methionine when it is attached to the initiator
methionine tRNA, can be formylated.
The formylation of the methinoine blocks the amino group of
the methionine and prevents it from any reaction on the
amino side and allows it to bind only to the P-site.
Subsequently the second amino acyl-tRNA enters at the A site
and the peptide bond is formed between the two amino acids.
Subsequently the second amino acyl-tRNA enters at the A site
and the peptide bond is formed between the two amino acids.
In eukaryotes the initiator tRNA itself is mutated and
so binds only to the P-site and thus there is no need for it
to be formylated.
After initiation of protein synthesis, the methionine is
cleaved off by an enzyme, since it is not present in the
mature polypeptide.
| Is This Answer Correct ? | 6 Yes | 1 No |
Answer / shilpa m
methionine is the nutral amino acid and it is a small amino
acid and it can combine with any acidic or basic amino acid.
and I also agree with the above mentioned answers.
| Is This Answer Correct ? | 7 Yes | 4 No |
Answer / waichale shrikant
in the protein synthesis the recognisitaion site is the AUG
and the protein synthesis starts at aug therefoe
ultimately the first a.a.is meth
| Is This Answer Correct ? | 4 Yes | 2 No |
Answer / shyamala
AUG codon codes for methionine.This act as a start codon to ensure that mRNA is translated in correct reading frame in order to obtain correct protein sequence.
| Is This Answer Correct ? | 2 Yes | 0 No |
If there were 4 bases for each code instead of the usual 3 bases, what would be the total number of possible codons? (its 64 when there r 3 bases for a codon)
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