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 (no͞o′klē-ō-prō′tēn′, -prō′tē-ĭn, nyo͞o′-)
Any of a group of complexes composed of protein and nucleic acid and found in the nuclei and cytoplasm of all living cells, as in chromatin and ribosomes, and in viruses.


(Biochemistry) a compound within a cell nucleus that consists of a protein bound to a nucleic acid


(ˌnu kli oʊˈproʊ tin, -ti ɪn, ˌnyu-)

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.
ThesaurusAntonymsRelated WordsSynonymsLegend:
Noun1.nucleoprotein - any of several substances found in the nuclei of all living cells; consists of a protein bound to a nucleic acid
protein - any of a large group of nitrogenous organic compounds that are essential constituents of living cells; consist of polymers of amino acids; essential in the diet of animals for growth and for repair of tissues; can be obtained from meat and eggs and milk and legumes; "a diet high in protein"
References in periodicals archive ?
If type B nucleoproteins are present, they bind to the antibody-gold conjugate in the test membrane and form a complex.
Specifically, naproxen blocks the RNA binding groove of the nucleoprotein, preventing formation of the ribonucleoprotein complex, thus taking the vital nucleoproteins out of circulation.
All samples were screened by using a 1:1 mixture of purified recombinant nucleoproteins (0.
Derivation of the nucleoproteins (NP) of influenza A viruses isolated from marine mammals.
The sections cover protein structure and function, nucleic acids and nucleoproteins, genetics and virology, DNA and RNA metabolism, and protein synthesis.
In the past few decades, whole new areas of thought and exploration have been opened up by the sciences--by electronics, by astrophysics, by microbiology, by the study of nucleoproteins and their role in genetics, by radioactive tracer studies, and by nuclear physics.
Tissue samples of testes of rainbow trout (Onchorynchus mykiss) and 6 month-old cat (Felix domesticus), for which cytochemical staining reactions for basic nucleoproteins are well recognized (Alfert & Geschhwind 1953; Rasch & Woodard 1959), were fixed in 10% neutral formalin and processed as above for tissue sections.
Structural disorder within the nucleoproteins and phosphoproteins of measles, Nipah and Hendra viruses