post-translational control

• Translation recap:

  1. one end of mRNA attaches to ribosome
  2. a tRNA with anticodon attaches to ribosome
  3. second tRNA molecule carrying an amino acid then binds to the next codon on the mRNA
  4. two tRNA molecules bind to the ribosome at once
  5. ribosome moves along mRNA and joins the 2 amino acid by peptide bond
  6. this continues until a stop codon is reached
• cAMP


  cyclic AMP
• cyclic AMP:

  • molecule binds to cell surface membrane
  • triggers production of cAMP
  • cAMP activates proteins by altering their 3D shape
  • changes active site enzyme to either less or more active
  • through phosphorylation

  
• what is the role of cAMP?

  activating proteins
• what promotes production of cAMP?

  hormones