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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 ?
Expression and relative quantification of recombinent NPPRV and 420-525NPPRV proteins: Relative quantities of two recombinant nucleoproteins and NPPRV in PPR virus solutions were measured by immunocapture ELISA (IC-ELISA).
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.
The fact that chromosomes are also nucleoproteins (containing DNA) makes it seem that viruses are chromosomes "on the loose" and that it is nucleoprotein that is the essence of life.
Table I shows the levels of ACTH release from dispersed pituitary cells of young (2-4 months) and mature (16-18 months) rats, after incubation with hypothalamic secretagogues, nucleoproteins or peptide MB35.
Structural disorder within the nucleoproteins and phosphoproteins of measles, Nipah and Hendra viruses
Antibody titers were measured through competitive ELISA (cELISA) using commercial diagnostic kit (IDVET Innovative diagnostics(R) Montpellier France) based upon PPR virus nucleoproteins coated in the plates (Libeau et al.
This viral RNA segment is coated with protective viral nucleoproteins and has a structure that resembles a twisted loop of chain.