Isoleucine anti-codons

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    • #9266
      maingroupe
      Participant

      hello people i have a simple question. why can’t UAU be an anti-codon for Isoleucine.

      Isoleuine codons: AUU AUC AUA
      Isoleuine anti-codons: UAA, UAG, UAI

      thanks

    • #82752
      MrMistery
      Participant

      In can in theory. But I can pair with either C, U or A(wobble). So you see, UAI can pair with no problems with all three codons. I have never heard of the absence of the UAU anticodon, but then again, i don’t know them all by heart. But because UAI is present, the absence of UAU would not pose a problem.

    • #82757
      Cat
      Participant

      My guess would be because G-U base pairing is permitted in translation and UAU would be able to bind Met (AUG) as well as Ile (AUA) thus creating a problem while UAI can bind all three Ile codons, but not Met.

    • #82759
      MrMistery
      Participant

      Good point. Didn’t think of that..

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