/nooh'klee euh proh"teen, -tee in, nyooh'-/, n. Biochem.
any of the class of conjugated proteins occurring in cells and consisting of a protein combined with a nucleic acid, essential for cell division and reproduction.
[1905-10; NUCLEO- + PROTEIN]

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Macromolecular complex consisting of a protein linked to a nucleic acid, either DNA or RNA.

The proteins that combine with DNA are generally of characteristic types called histones and protamines. The resulting nucleoproteins (deoxynucleoproteins) make up the chromosomes of living cells. Many viruses are little more than organized agglomerations of deoxynucleoproteins. Many specific RNA nucleoproteins are also known; they have diverse cellular functions.

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      conjugated protein consisting of a protein linked to a nucleic acid, either DNA (deoxyribonucleic acid) or RNA (ribonucleic acid). The protein combined with DNA is commonly either histone or protamine; the resulting nucleoproteins are found in chromosomes. Many viruses are little more than organized collections of deoxyribonucleoproteins. Little is known about the proteins linked with RNA; unlike protamine and histone, they appear to contain the amino acid tryptophan.

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Universalium. 2010.

Look at other dictionaries:

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  • nucleoprotein — noun Etymology: International Scientific Vocabulary Date: 1907 a compound that consists of a protein (as a histone) conjugated with a nucleic acid (as a DNA) and that is the principal constituent of the hereditary material in chromosomes …   New Collegiate Dictionary

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  • nucleoprotein — noun Any complex of a nucleic acid and a protein …   Wiktionary

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  • Nucleoprotein — ◆ Nu|cleo|pro|te|in 〈n. 11; Biochem.〉 = Nukleoprotein ◆ Die Buchstabenfolge nu|cl... kann in Fremdwörtern auch nuc|l... getrennt werden …   Universal-Lexikon

  • nucleoprotein — nuːklɪəʊ prəʊtɪːn / nju n. substance of protein and nucleic acid present in the nucleus of a cell (Biology) …   English contemporary dictionary

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