Translation Flashcards

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0
Q

The code is ambiguous

A

One code is specific to one amino acid

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1
Q

What are the bases in the RNA template

A

A c g u

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2
Q

The code is degenerate

A

There could be many codes for one amino acid

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3
Q

Three steps of translation

A

Initiation
Elongation
Termination

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4
Q

rnas involved

A

Mrna
Rrna
Trna

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5
Q

Initiation

A
  1. small ribosomal subunit comes in and binds to mRNA at 5’ end
    - —– in prok it binds at the shine dalgarno
  2. Met-tRNA binds to the start codon by its anticodon at the P site
  3. The large ribosomal subunit then binds
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6
Q

A P and E site

A

A: aminoacyl site
P: peptidyl site
E: exit site

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7
Q

Elongation

A
  1. The second charged tRNA binds at the A site
    - –requires GTP hydrolysis
  2. Peptide formation
  3. Translocation A->P->E
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8
Q

Termination

A

Release factor binds when the stop codon appears in the A site

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