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 (no͞o′klē-ə-sōm′, nyo͞o′-)
Any of the repeating subunits of chromatin found in eukaryotes, consisting of a DNA chain coiled around a core of histones.

nu′cle·o·som′al (-sō′məl) adj.
American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.


(Biochemistry) a repeating structural unit of chromatin that contains DNA and histones
Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014


(ˈnu kli əˌsoʊm, ˈnyu-)

any of the repeating subunits of chromatin occurring at intervals along a strand of DNA, consisting of DNA coiled around histone.
Random House Kernerman Webster's College Dictionary, © 2010 K Dictionaries Ltd. Copyright 2005, 1997, 1991 by Random House, Inc. All rights reserved.
References in periodicals archive ?
The picture is the first-ever image of a protein interacting with DNA in its tightly packed "nucleosome" form.Using a 3-D visualization method called X-ray crystallography, Song Tan, an associate professor of biochemistry and molecular biology at Penn State University, has built the first-ever image of a protein interacting with the nucleosome - DNA packed tightly into space-saving bundles organized around a protein core.
Specific topics include mechanistic studies of the mRNA transcription cycle, the relationship between higher-order chromatin structure and transcription, specialized transcription factories, a role for upstream binding factor in organizing ribosomal gene chromatin, nutrient-regulated gene expression in eukaryotes, nucleosome dynamics, non- coding RNA in transcription initiation, fluorescence resonance energy transfer as a method for dissecting in vivo mechanism of transcriptional activation, and core promoter-selective RNA polymerase II transcription.
The nuclear architecture, gene structure, and expression level correlate well with cfDNA nucleosome occupancy and are directly footprinted by cfDNA (18), which makes cfDNA naturally different from genomic DNA or mechanical shearing-derived DNA fragments.
Nucleosome levels were determined in PLF by ELISA as described previously [22].
Life sciences company VolitionRx Limited (NYSE MKT:VNRX) revealed on Tuesday that it has received a US patent titled "Method for Detecting Nucleosome Adducts."
The NuQ range of products is based on the Nucleosomics platform, which identifies and measures nucleosome structures in cell culture, serum, plasma or other biofluids.
Although the catalytic and regulatory subunits of DNA-PK remain to be characterized in this organism, DNA-dependent phosphorylation of histone during nucleosome assembly has been demonstrated in the oocytes (Kleinschimdt and Steinbeisser, 1991).
The question arises as to the significance of JAK induction of H3pY41 to nucleosome transient unwrapping so that factors such as the complexes of our noncanonical studies can become involved in DNA transcription.
He demonstrated that a different pattern of damage is observed when cells (as opposed to naked DNA) are irradiated with UV light, and he characterized the methylation and nucleosome to the study of DNA damage at the nucleotide level.
And to regulate genes that a tissue type may or may not need, its DNA is pack aged and bound in different ways by proteins called histones, with each unit of histones and tightly coiled DNA termed a nucleosome. It is the selective regulation of genes that gives the hepatocyte its unique identity.