Translation

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Translation
??? ??.?????? ??????
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???????????????? Translation
??????????????????? ?????????????????????????????
??????????????? ????????????????????????????????
??????? ???????????????????????????
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Translation

• mRNA
• tRNA
• Ribosome
• Genetic code or Codon

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tRNA (transferRNA)
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amino acid enzyme
tRNA
Aminoacyl tRNA
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Ribosome
?????????????????????? ???????????????????????????
???????? translation
???????? nucleolus ???????????

• ???????? 2 subunits
• small subunit
• large subunit

rRNA polypeptides
rRNA polypeptides
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P -site
A -site
?????????????????ribosome ?????polypeptide
????????
?????????????????ribosome ?????amino acid ????????
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Genetic code

• ???? triplet code ?????? mRNA ????????????????????
  ??
• AUG ????????????????? (initiation codon) ??????
  methionine ???? N-formylmethionine
• UAA, UAG ??? UGA ???????????????? (terminator
  codon)

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Genetic code

• ???????????? ??????????????????????????
• ??????????????????????????????????????
• ????????? 43 64 ?????

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Stop codon
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Polysome
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