tRNA necklace | sterling silver A tRNA necklace for molecular biologists, biochemists, and anyone who can sketch the cloverleaf from memory. The adapter molecule that bridges the genetic code and the protein, in sterling silver. How tRNA Works A tRNA is a short RNA of 76 to 90 nucleotides that reads one codon and delivers one amino acid. The classic two-dimensional representation is a cloverleaf: an acceptor stem at the top, the D arm on one side, the anticodon arm at the bottom, and the TΨC arm on the other side. The anticodon loop pairs with three bases of mRNA. The CCA tail at the 3' end of the acceptor stem carries the matching amino acid. In a translating ribosome, three tRNAs work side by side at any moment: one entering, one bound to the growing peptide chain, one leaving. The fidelity of the genetic code rests not on tRNA itself but on the twenty aminoacyl-tRNA synthetases that load the correct amino acid onto each tRNA. Mahlon Hoagland first isolated tRNA in 1957 and called it soluble RNA. A Meaningful Gift for Science Lovers For people who can name their favourite codon without effort. molecular biologists, biochemists, and structural biologists researchers working on translation, ribosomes, and codon engineering biology teachers explaining the central dogma to a class PhD students and postdocs running expression and translation work For the colleague whose entire experimental setup depends on the right tRNA loading the right amino acid. Explore Related Cellular Biology Jewelry tRNA necklace | gold vermeil Ribosomes necklace | gold vermeil RNA necklace | gold vermeil Ribosome cufflinks | sterling silver FAQ Will a molecular biologist actually appreciate this? Yes. The cloverleaf is how tRNA gets taught and how most molecular biologists carry it in their head: four arms, three loops, the anticodon at the bottom, the acceptor stem with the CCA tail at the top. Drawing it on a napkin is something they have done many times. Wearing it works as a quiet version of the same gesture. Why does tRNA have two recognisably different ends? The two ends do separate jobs. The anticodon loop at the bottom of the cloverleaf reads three bases of mRNA, deciding which codon this tRNA matches. The 3' CCA tail at the top of the acceptor stem carries the amino acid that gets added to the growing protein. In three dimensions the molecule folds into an L-shape that keeps the two functional ends roughly 70 angstroms apart, which is the distance the ribosome needs between codon recognition and peptide bond formation. The fold is what makes the genetic code work as an adapter system. What size is the pendant and what does it ship with? The pendant is 33 mm tall, sized so the four arms of the cloverleaf and the three loops are all readable at a glance. It ships on a 45 cm sterling silver chain (1.8 mm width, lobster clasp) with a 5 cm extender. Free worldwide DHL Express shipping in 1-5 business days, all import duties covered, in a ready-to-gift jewelry box. Why tRNA, when there are other RNA pieces in the catalog? RNA covers a lot of ground. Messenger RNA carries the message, ribosomal RNA does the catalysis, microRNAs regulate, and several others handle splicing or interference. The tRNA is the adapter: the only RNA whose entire job is to read three letters of one molecule and deliver one specific amino acid to the right address. It is the moment where the genetic code stops being information and becomes chemistry.
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