What mRNA sequence does the following template DNA nucleotide sequence specify?
What is the small protein sequence that will result from the mRNA that is made in the question above?
Answer c) lys-ile-glu-lys-pro
5’UGAUGCAAAAAGCUAAAA3′ we translate from the 3′ end towards 5′ end
The protein sequence could be lys-ile-glu-lys-pro-Ser
The shorter sequence should then be lys-ile-glu-lys-pro
It is first important to note that each codon consists of three nucleotides, usually corresponding to a single amino acid.
The template DNA is first transcribed in that A is substituted with U and G substituted with C to form the corresponding mRNA which is 5’UGAUGCAAAAAGCUAAAA3′
We divide the mRNA into sections of three nucleotides and then find the amino acid for each codon as follows
We start from the 3′ end
AAA – Lys
AUC – ile
GAA – Glu
AGU – Ser
The protein sequence is c) lys-ile-glu-lys-pro