Capping is done by a dimeric nuclear enzyme which has two subunits and three functions

1. Guanylyl-transferase (GT)

2. Methyltransferase (MT)

TLS Online TPP Program

#Id: 3590

#Unit 3. Fundamental Processes

How genetic information contained within the order of nucleotides in messenger RNA (mRNA) is interpreted to generate the linear sequences of amino acids in proteins. This process is known as translation.

TLS Online TPP Program

#Id: 3592

#Unit 3. Fundamental Processes

A codon is a triplet of nucleotides that codes for a specific amino acid.

TLS Online TPP Program

#Id: 3593

#Unit 3. Fundamental Processes

The side chains of amino acids have little or no specific affinity for the purine and pyrimidine bases found in RNA.

TLS Online TPP Program

#Id: 3594

#Unit 3. Fundamental Processes

In 1961 Marshall Nirenberg and Heinrich Matthaei reported the first breakthrough in reading nucleotide codon in amino acid frame.

TLS Online TPP Program

#Id: 3596

#Unit 3. Fundamental Processes

Nirenberg and Matthaei therefore concluded that the triplet codon UUU encodes phenylalanine, poly(C) proline (polyproline), polyadenylate, poly(A), encodes polylysine.

TLS Online TPP Program

#Id: 3597

#Unit 3. Fundamental Processes

“Dictionary” of amino acid code words in mRNAs.