CP-2156 Life In The Universe
Figure 2. Cloverleaf diagram of the
nucleotide sequence of yeast tRNAPhe. Tertiary
base-base hydrogen-bonding interactions are shown by solid lines,
which indicate one, two, or three hydrogen bonds. The invariant and
semi-invariant positions are indicated by solid and dashed lines
around the bases; Y37 is a hypermodified
purine.
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