Host immune responses and bacterial evasion mechanisms

TLS Online TPP Program

#Id: 3608

#Unit 3. Fundamental Processes

Aminoacyl-tRNA synthetases couple amino acids to specific tRNAs that recognize the appropriate codon(s).

TLS Online TPP Program

#Id: 3609

#Unit 3. Fundamental Processes

The ribosome coordinates the correct recognition of the mRNA by each tRNA and catalyzes peptide-bond formation between the growing polypeptide chain and the amino acid attached to the selected tRNA.

TLS Online TPP Program

#Id: 3611

#Unit 3. Fundamental Processes

Degeneracy of the Genetic Code

TLS Online TPP Program

#Id: 3612

#Unit 3. Fundamental Processes

The initiation codon AUG is the most common signal for the beginning of a
polypeptide in all cells.

TLS Online TPP Program

#Id: 3613

#Unit 3. Fundamental Processes

The termination codons (UAA, UAG, and UGA), also called stop codons or nonsense codons.

TLS Online TPP Program

#Id: 3615

#Unit 3. Fundamental Processes

The degeneracy of the code is not uniform. Whereas methionine and tryptophan have single codons, for example, three amino acids (Arg, Leu, Ser) have six codons, five amino acids have four, isoleucine has three, and nine amino acids have two.