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・ Nuclear magnetic resonance in porous media
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Nuclear dots : ウィキペディア英語版
Nuclear dots

Nuclear dots (also known as Nuclear bodies, nuclear domains, or PML bodies) are punctate structures found in the nuclei of certain cells. Nuclear bodies (NBs) were first seen as prominent interchromatin structures in the nuclei of malignant or hyperstimulated animal cells identified using anti-sp100 autoantibodies from primary biliary cirrhosis and subsequently the promyelocytic leukemia (PML) factor, but appear also to be elevated in many autoimmune and cancerous diseases. Nuclear dots are metabolically stable and resistant to nuclease digestion and salt extraction.
==Structure==
Simple nuclear bodies (types I and II) and the shells of complex NB (types III, IVa and V) consist of a non-chromatinic fibrillar material which is most likely proteinaceous. That nuclear bodies co-isolated with the nuclear matrix, and were linked to the fibrogranular nuclear matrix component by projections from the surface of the nuclear bodies.〔 The primary components of the nuclear dots are the proteins sp100 nuclear antigen, LYSP100(a homolog of sp100), ISG20, PML antigen, NDP55 and 53kDa protein associated with the nuclear matrix. Other proteins, such as PIC1/SUMO-1, which are associated with nuclear pore complex also associate with nuclear dots. The proteins can reorganize in the nucleus, by increasing number of dispersion in response to different stress (stimulation or heat shock, respectively).

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