/sci/ - Science & Math

here is an interesting figure i found showing the entire genome of citrus exocortis (viroid). its insane that it carries enough information encoded in a genome no more than 350 bases long to replicate itself.

Fig. 2. (a) Nucleotide sequence and structure of CEVd variants. (i) CEVd-t (Semancik et al., 1993); (ii) CEVd D-92 (Semancik et al., 1994); (iii) CEVd D-104 (Semancik & Duran-Vila, 1999); (iv) CEVd D-87; (v) CEVd D-76. Nucleotide changes compared with D-92 are indicated. Molecular structures are presented as the minimum free energy form predicted at 24 °C (Zuker, 1989). The five structural domains T1, P, C, V and T2 (Keese & Symons, 1985), terminal repeated regions U1, U2, L1 and L2, the AGCU tetrads (horizontal bars) (Semancik et al., 1994) and the hairpin II (HPII) stems (Steger & Riesner, 2003) are indicated. (b) Modelling of the CEVd D-forms D-38 (i), D-40 (ii) and D-43 (iii), with quasicomplementary sequence insertions (hatched areas) compared with the D-92 sequence to complete a hypothetical stable structure of the minimum free energy form predicted at 24 °C (Zuker, 1989). Nucleotide changes compared with CEVd D-92 are indicated.