amber suppressor

amber suppressor

English-Russian Biotechnology Glossary. . 2007.

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  • suppressor mutation — Mutation that alleviates the effect of a primary mutation at a different locus. May be through almost any mechanism that can give a primary mutation, but perhaps the most interesting class are the amber and ochre supressors, where the anticodon… …   Dictionary of molecular biology

  • suppressor — A compound that suppresses the effects of mutation or suppresses what would be a normal course of events. amber s. a mutant gene that codes for a tRNA whose anticodon has been altered so that the altered tRNA responds to UAG codons as well. * * * …   Medical dictionary

  • suppressor mutation — A mutation that reverses the effect of an earlier mutation, e.g. a mutation in a gene for a tRNA that permits it to read and override an amber mutation …   Glossary of Biotechnology

  • ochre suppressor — A gene that codes for an altered tRNA so that its anticodon can recognize the ochre codon and thus allows the continuation of protein synthesis. A suppressor of an ochre mutation is a tRNA that is charged with the amino acid corresponding to the… …   Dictionary of molecular biology

  • Stop codon — In the genetic code, a stop codon (or termination codon) is a nucleotide triplet within messenger RNA that signals a termination of translation.[1] Proteins are based on polypeptides, which are unique sequences of amino acids. Most codons in… …   Wikipedia

  • Mutation — A permanent change, a structural alteration, in the DNA or RNA. In humans and many other organisms, mutations occur in DNA. However, in retroviruses like HIV, mutations occur in RNA which is the genetic material of retroviruses. In most cases,… …   Medical dictionary

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  • Bacterial Genetic Nomenclature — is a set of generally accepted rules and conventions used for naming bacterial genes. Standards for were proposed in 1966 by Demerec et al. [Demerec M et al. (1966) A proposal for a uniform nomenclature in bacterial genetics. Genetics 54:61 76] …   Wikipedia

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