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| Structure | Symbol | Modification | Location | Function |
|---|---|---|---|---|
|
S2U | 2-thiouridine | tRNA U34 wobble position | Enhance the Accuracy and efficiency of protein translation |
|
S4U | 4-thiouridine | tRNA U8 | Serves as a photo-sensor for near-ultraviolet radiation |
|
Ges2U | Geranyl-2-thiouridine | tRNA U34 | Enhance codon recognition and reduce frameshift |
|
PS | Phosphorothioate | Backbone of RNAs | Unknown |
