transfer RNA

transfer RNA
transfer RNA n a relatively small RNA that transfers a particular amino acid to a growing polypeptide chain at the ribosomal site of protein synthesis during translation called also adapter RNA, soluble RNA, tRNA compare MESSENGER RNA

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a type of RNA whose function is to attach the correct amino acid to the protein chain being synthesized at a ribosome. See also translation.

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(tRNA) small RNA molecules, 73–93 nucleotides, occurring in cells in 20 or more varieties and functioning in translation; each variety carries a specific amino acid to a site specified by an RNA codon, binding to amino acid and ribosome, and to the codon via an anticodon region. All have numerous modified bases and extensive secondary structure; see illustration.

Schematic diagram of features common to transfer RNA (tRNA) molecules, depicting the anticodon and amino acid attachment regions. Lines between chains represent hydrogen-bonded base pairs. (A), Backbone model; (B), planar model. The characteristic cloverleaf is formed by the hairpin and loop structures that result from intrachain hydrogen bonding. Single letter code for bases: A, adenine; C, cytosine; G, guanine; R, any purine; T, thymine; U, uracil; A, adenine; Y, any pyrimidine; ψ, pseudouridine.

Medical dictionary. 2011.

Look at other dictionaries:

  • transfer RNA — n. any of various small, looped forms of RNA that combine temporarily with messenger RNA to bring an amino acid to the proper location during the building of a polypeptide chain …   English World dictionary

  • Transfer-RNA — Transfer RNA, tRNA, niedermolekulare, nicht an Proteine gebundene Form der ⇒ Ribonucleinsäure im Cytoplasma; überträgt Aminosäuren bei der Proteinsynthese. Der Anteil der tRNA an der Gesamt RNA der Zelle liegt bei 10–15%, die… …   Deutsch wörterbuch der biologie

  • transfer RNA — transfer RNA. См. растворимая РНК. (Источник: «Англо русский толковый словарь генетических терминов». Арефьев В.А., Лисовенко Л.А., Москва: Изд во ВНИРО, 1995 г.) …   Молекулярная биология и генетика. Толковый словарь.

  • Transfer RNA — The interaction of tRNA and mRNA in protein synthesis tRNA Identifiers Symbol tRNA …   Wikipedia

  • Transfer RNA — tRNA ist die Kurzform für transfer RNA. Transfer RNAs sind kurze Ribonukleinsäuren (RNA). Die Länge reifer tRNAs liegt in der Regel zwischen 73 und 95 Nukleotiden. Sie vermitteln bei der Translation die richtige Aminosäure zum entsprechenden… …   Deutsch Wikipedia

  • Transfer-RNA — Trans|fer RNA: Abk. für ↑ Transfer Ribonukleinsäure. * * * Transfer RNA,   tRNA, eine Ribonukleinsäure (Nukleinsäuren) …   Universal-Lexikon

  • transfer RNA — transportinė RNR statusas T sritis augalininkystė apibrėžtis Ribonukleorūgštis, kovalentiniais ryšiais susijungianti su aminorūgštimi ir pernešanti ją į baltymo sintezės vietą. atitikmenys: angl. transfer RNA rus. транспортная РНК ryšiai:… …   Žemės ūkio augalų selekcijos ir sėklininkystės terminų žodynas

  • Transfer RNA-like structures — (tRNA like structures) are RNA sequences, which have a similar tertiary structure to tRNA, but contain a pseudoknot close to the 3 endcite journal |author=Dreher TW |title=Role of tRNA like structures in controlling plant virus replication… …   Wikipedia

  • transfer RNA — noun RNA molecules present in the cell (in at least 20 varieties, each variety capable of combining with a specific amino acid) that attach the correct amino acid to the protein chain that is being synthesized at the ribosome of the cell… …   Useful english dictionary

  • transfer RNA — n. gen any of a class of small, cloverleaf forms of RNA that transfer unattached amino acids in the cell cytoplasm to the ribosomes for protein synthesis Abbr.: tRNA Etymology: 1960–65 …   From formal English to slang

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