tRNA
(= transfer RNA; s-RNA; 4S RNA)
The low molecular weight RNAs that specifically bind amino acids by amino-acylation to form aminoacyl tRNA, and that possess a special nucleotide triplet, the anticodon, sometimes containing the base inosine. They recognize codons on mRNA. By this recognition the appropriate tRNAs are brought into alignment in turn in the ribosome during protein synthesis (translation), there being at least one species of tRNA for each amino acid. In practice most cells possess about 30 types of tRNA. The amino acids are bound at the 3\' terminus that is always 3\'-ACC. The anticodon is around 34-38 nucleotides from the 5\' end and the total length of the various tRNAs is 70-80 bases.

Dictionary of molecular biology. 2004.

Look at other dictionaries:

  • 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 Codon auf …   Deutsch Wikipedia

  • 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 Codon auf …   Deutsch Wikipedia

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

  • tRNA — tRNA. 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.

  • tRNA — tRNA. = transfer RNA (см.). (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.

  • tRNA — ⇒ Transfer RNA …   Deutsch wörterbuch der biologie

  • tRNA — abbrev. transfer RNA …   English World dictionary

  • tRNA — Abbreviation for transfer RNA. * * * transfer ribonucleic acid * * * tRNA .tē .är .en ā, tē .är .en .ā n TRANSFER RNA * * * transfer RNA …   Medical dictionary

  • tRNA — Abbreviation for transfer RNA Small RNA molecules that transfer amino acids to the ribosome during protein synthesis. Each tRNA binds just one species of amino acid and recognizes a specific codon in the mRNA, thus implementing the genetic code …   Glossary of Biotechnology

  • tRNA — abbr. 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… …   Useful english dictionary

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