Translation Protein Synthesis Part 2 pp. 207-210.

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Translation Protein Synthesis Part 2 pp

Proteins (macromolecule)  Made of amino acids  20 amino acids  Sequence of amino acids determines the protein  Protein function is based on shape

Overview  Translation: the reading of mRNA to make proteins  DNA  mRNA  Proteins  Ribosomes (in cytoplasm) read (translate) mRNA to assemble proteins

Genetic Code  mRNA is used as a template to make proteins  3 mRNA nucleotides = 1 codon = 1 amino acid  2 codons tell when to stop and start (MET) ACU GCG UAA ACC

Practice!  Find the Amino Acid: CUC: AAU: UCC: UAG:

Practice!  Find the Amino Acid: CUC: Leu AAU: Asn UCC: Ser UAG: STOP!

Assembly  A ribosome attaches to mRNA at start codon  tRNA brings in amino acids floating in cytoplasm  Tip of tRNA binds to a specific amino acid and carries ribosomes  Anti-codon binds to mRNA

Vocabulary  Codon/Anti-Codon  Amino Acid