Energy derived from absorbed light is used to reverse the photoreaction that caused the lesion.  The two chromophores in E. coli photolyase (Mr 54,000), N5,N10 methenyltetrahydrofolylpolyglutamate (MTHFpolyGlu) and FADH, perform complementary functions

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.

TLS Online TPP Program

#Id: 3599

#Unit 3. Fundamental Processes

The third base of each codon plays a lesser role in specifying an amino acid than the first two.