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Wobble

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wobble

In molecular biology, unorthodox pairing between the base at the 5' end of an anticodon and the base that pairs with it (in the 3'-position of the codon); thus, the anticodon 3'-UCU-5' may pair with 5'-AGA-3' (normal or Watson-crick pairing) or with 5'-AGG-3' (wobble). Wobble pairings can occur between the unusual base hypoxanthine and adenine, uracil, or cytosine, between uracil and guanine, and between guanine and uracil, when in the 5'-position of an anticodon.

See: wobble base.