Guanosine 2026-10-13
A nucleoside comprising guanine attached to ribose. Its free hydroxyl group initiates group I intron RNA splicing; guanosine is incorporated into the excised intron, rather than acting as a regenerated catalyst.
Nucleoside 2026-10-13
A nucleoside combines a nucleobase with a sugar, without the phosphate groups of a nucleotide. Adenosine is the nucleoside built from adenine and ribose. See Alberts et al., Molecular Biology of the Cell: nucleosides and nucleotides.