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Reading Codon and Anticodons

Discussion in 'DAT Discussions' started by americanpierg, Sep 29, 2009.

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  1. americanpierg

    americanpierg Senior Member 5+ Year Member

    1,339
    4
    Dec 8, 2005
    DNA and RNA are always read 5' to 3' even if the 5 and 3 are not explicitly written


    If on an mRNA strand, you have
    AUGAAA

    Wouldn't the anticodon read
    UUUCAU

    ?
     
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  3. AndyMay777

    AndyMay777

    7
    0
    Jun 17, 2009
    The aniticodon is a series of nucletide bases on the base of a tRNA molecule that are complementary to the codon on the mRNA transcript. Codons and anticodons are tripletts so for the mRNA sequence AUGAAA the anticodon complementary to one codon (AUG) would be UAC and the other(AAA) would be UUU
     
  4. americanpierg

    americanpierg Senior Member 5+ Year Member

    1,339
    4
    Dec 8, 2005
    So anticodons are read 3'-5' by convention?
     
  5. dds10

    dds10

    100
    0
    Sep 21, 2009
    The ribosome/trna reads the mrna in the 5' to 3' direction, so if it's written as
    AUGAAA ---->
    assuming it's 5' to 3'
    the anti codon on the t-rna would read

    UACUUU ---->
     

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