polycistronic messenger RNA

a messenger RNA that contains more than one initiation site and encodes more than one gene product; usually denoting the single transcript transcribed from a prokaryotic operon and ultimately translated into multiple polypeptides.

Medical dictionary. 2011.

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  • Messenger RNA — The life cycle of an mRNA in a eukaryotic cell. RNA is transcribed in the nucleus; processed, it is transported to the cytoplasm and translated by the ribosome. At the end of its life, the mRNA is degraded. Messenger RNA (mRNA) is a molecule of… …   Wikipedia

  • polycistronic — Pertaining to mRNA carrying information for the synthesis of more than one protein. * * * poly·cis·tron·ic .päl i sis trän ik adj containing the genetic information of a number of cistrons <polycistronic messenger RNA> * * *… …   Medical dictionary

  • polycistronic — adjective Date: 1963 containing the genetic information of a number of cistrons < polycistronic messenger RNA > …   New Collegiate Dictionary

  • polycistronic — ¦pälē, lə̇ˌ adjective Etymology: poly + cistronic (herein) : containing the genetic information of a number of cistrons * * * /pol ee si stron ik/, adj. Genetics. of or pertaining to the transcription of two or more adjacent cistrons into a… …   Useful english dictionary

  • polycistronic — /pol ee si stron ik/, adj. Genetics. of or pertaining to the transcription of two or more adjacent cistrons into a single messenger RNA molecule. [1960 65; POLY + CISTRON + IC] * * * …   Universalium

  • Trans-Spliced Exon Coupled RNA End Determination (TEC-RED) — Trans Spliced Exon Coupled RNA End Determination is a technique designed by Muller et al. that, like SAGE, allows for the digital detection of messenger RNA sequences. Unlike SAGE, detection and purification of transcripts from the 5’ end of the… …   Wikipedia

  • monocistronic RNA — A messenger RNA that gives a single polypeptide chain when translated. All eukaryote mRNAs are monocistronic, but some bacterial mRNAs are polycistronic especially those transcribed from operons …   Dictionary of molecular biology

  • Operon — A typical operon In genetics, an operon is a functioning unit of genomic DNA containing a cluster of genes under the control of a single regulatory signal or promoter.[1][2] The genes are tr …   Wikipedia

  • Gene expression — For vocabulary, see Glossary of gene expression terms. For a non technical introduction to the topic, see Introduction to genetics. Genes are expressed by being transcribed into RNA, and this transcript may then be translated into protein. Gene… …   Wikipedia

  • MicroRNA — The stem loop secondary structure of a pre microRNA from Brassica oleracea. A microRNA (abbreviated miRNA) is a short ribonucleic acid (RNA) molecule found in eukaryotic cells. A microRNA molecule has very few nucleotides (an average of 22)… …   Wikipedia

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