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Found TRNA 9 times.

Displaying results 1 to 10.

1. 1-thiouridine
A modified pyrimidine base formed by the replacement of an oxygen atom by a sulfur atom and is found only in trna s.

2. Amber suppressor
A trna molecule which suppresses amber mutation s because it has mutated to recognize the amber codon UAG (which normally signals that the translation of mRNA into an amino acid chain should stop) as a signal for inserting whatever amino acid it carries into the chain. As a result, it can prevent the amino acid chain from ending before it is completed.

3. Aminoacyl-tRNA
The name of the complex created when a trna molecule is attached to its specific amino acid and ready to participate in protein synthesis.

4. Binding sites
Areas on the ribosome within which trna -amino acid complexes fit during protein synthesis.

5. Dihydrouridine
An unusual pyrimidine which is the result of adding two hydrogen atoms to a uridine (another nitrogenous base ). It is found only in trna molecules.

6. Intergenic suppression
The suppression of a mutation that has rendered a gene nonfunctional because the coding has changed to call for a wrong amino acid in the final polypeptide product, or even to call for a wrong stopping point. The mutation is suppressed when another mutation (a suppressor mutation ) occurs which creates a mutant trna molecule that reads the mutated code as the normal code, and thus puts the correct amino acid into the final polypeptide product, thereby making the gene functional again. The original mutation is "fixed" as a result of another, independent mutation in a different gene. For an example of an intergenic suppression, see amber suppressor .

7. Transfer RNA (tRNA)
A class of RNA having structures with triplet nucleotide sequences that are complementary to the triplet nucleotide coding sequences of mRNA . The role of trnas in protein synthesis is to bond with amino acid s and transfer them to the ribosome s, where proteins are assembled according to the genetic code carried by mRNA.

8. Transfer RNAs (tRNAs)
Small, single-stranded RNA molecules that bind to amino acids and deliver them to the proper codon on messenger RNA . The trucks of protein synthesis that carry the specified amino acid to the ribosome . Abbreviated trna.

9. Wobble hypothesis
A proposed explanation for how one transfer RNA can recognize two codon s: each trna has an anticodon that is a base triplet, and normal base-pairing occurs between the first two bases and complimentary bases in an mRNA codon; the third base has a free play (wobble) that lets it pair with any of a number of bases that are in the third position of different codons.

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