4-Thiouridine is an atypical nucleoside formed with the 4-thiouracil base found in transfer RNA (tRNA). Its biosynthesis has been determined.
4-Thiouridine is an atypical nucleoside formed with the 4-thiouracil base found in transfer RNA (tRNA). Its biosynthesis has been determined.
The IUPAC reserved the single-letter nucleobase code "S" for thiouridine in 1970, but the convention does not appear very common. "S" was repurposed to mean "C or G" in 1984.
Discovered by embedding cosine similarity (sentence-transformers MiniLM, 384-dim).