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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 ?
This holoenzyme is assembled from a barrel-shaped, proteolytically active core particle and two 19S regulatory particles, capping both ends of the core particle cylinder.
Some years ago, we reported the synthesis of polymer particles composed of a spherical colloidal core particle (CCP) encapsulated using the inimer 4-vinylbenzyl N,N-diethyldithiocarbamate (VBDC), leading to the formation of hyperbranched structures by a living radical mechanism.
As a result, these spectra suggest that the core particle is different from the additional particles which attach on it.
They correspond to optical cross sections per mass of the particle or the core particle when we consider the shell-and-core internal mixture.
Revealing thousands of particles on screen in seconds and saving the data for analysis, product enables lab managers, process engineers and others to see the distinct shell layer encasing the core particle, visually assess the wall thickness and quality of the coating coverage, and determine whether the encapsulated particles meet required specifications.
To limit the higher exposure risks associated with handling dry powders, CARBOGEN AMCIS adopted in-line wet milling as a core particle sizing technology during the past 2 years and uses it as the preferred approach for particle reduction where technically feasible.
where [rho.sub.2] is the electron density of the shell, [p.sub.1] is the electron density of the core particles, [R.sub.2] is the radius of whole particle, and [R.sub.1] is the radius of the core particle.
The flexible and dynamic structure of the nucleosomel organization is facilitated by ATP-dependent chromatin-remodeling complexes that cause uncoupling of the close DNA-histone connection, the transfer of a histone octamer to another DNA molecule, or the core particle to slide along the DNA (3, 4).
Papers [1, 2] propose the other explanation of the reduction of >4D space-time into 4D space-time by slicing >4D space-time into infinitely many 4D slices surrounding the 4D core particle. Such slicing of >4D space-time is like slicing 3-space D object into 2-space D object in the way stated by Michel Bounias as follows: "You cannot put a pot into a sheet without changing the shape of the 2-D sheet into a 3-D dimensional packet.
This sub-division is seen to regulate the access to the proteolytic chamber inside the core particle CP and is encompassed by non-ATPase subunits (Rpns) that identifies substrates and deubiquitylate them prior to degradation.
The latex particles serve two purposes: (a) to enhance the light scattering achieved on reaction of antigen with antibody, and (b) to act as a core particle in the development of an immunoinhibition assay.