A linear polymer containing an indefinite (usually large) number of nucleotides, linked from one ribose (or deoxyribose) to another via phosphoric residues. Cf.:oligonucleotide.
- p. methyltransferases enzymes that catalyze the methylation of purine and/or pyrimidine bases of polynucleotides or of the sugars of polynucleotides. SYN: p. methylases.
- p. thioltransferases enzymes that catalyze specific thiolation reaction of purine and/or pyrimidine bases in polynucleotides.

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poly·nu·cle·o·tide -'n(y)ü-klē-ə-.tīd n a polymeric chain of mononucleotides

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a long chain of linked nucleotide, of which molecules of DNA and RNA are made.

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poly·nu·cleo·tide (pol″e-nooґkle-o-tīd) a linear polymer of mononucleotides; see nucleic acid.

Medical dictionary. 2011.

Look at other dictionaries:

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  • polynucleotide — polynucleotide. См. полинуклеотид. (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.

  • Polynucleotide — Polynucleotide, aus ⇒ Nucleotiden aufgebaute, unverzweigte, kettenförmige Moleküle, aus denen die ⇒ Nucleinsäuren bestehen. Die einzelnen Nucleotide sind jeweils über den Phosphorsäurerest am C3 des Zuckermoleküls des einen Nucleotids mit dem C5… …   Deutsch wörterbuch der biologie

  • Polynucleotide — A polynucleotide molecule is an organic polymer molecule composed of nucleotide monomers covalently bonded in a chain. DNA (deoxyribonucleic acid) and RNA (ribonucleic acid) are examples of polynucleotides with distinct biological function. The… …   Wikipedia

  • polynucleotide — Linear sequences of nucleotides, in which the 5 linked phosphate on one sugar group is linked to the 3 position on the adjacent sugars. In the polynucleotide DNA the sugar is deoxyribose and in RNA, ribose. They may be double stranded or single… …   Dictionary of molecular biology

  • polynucleotide — polinukleotidas statusas T sritis chemija apibrėžtis Biopolimeras, sudarytas iš fosfodiesteriniais ryšiais susijungusių nukleotidų. atitikmenys: angl. polynucleotide rus. полинуклеотид …   Chemijos terminų aiškinamasis žodynas

  • polynucleotide — noun Etymology: International Scientific Vocabulary Date: 1911 a polymeric chain of nucleotides …   New Collegiate Dictionary

  • polynucleotide — /pol ee nooh klee euh tuyd , nyooh /, n. Biochem. a sequence of nucleotides, as in DNA or RNA, bound into a chain. [1910 15; POLY + NUCLEOTIDE] * * * …   Universalium

  • polynucleotide — noun A polymeric macromolecule composed of many nucleotides; examples include DNA and RNA …   Wiktionary

  • polynucleotide — noun Biochemistry a linear polymer composed of many nucleotide units, constituting a section of a nucleic acid molecule …   English new terms dictionary

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