nuclear body
extra-nucleolar nuclear domains, usually visualized by confocal microscopy and fluorescent antibodies to specific proteins
histone locus body
nuclear body associated with the histone gene locus that is thought to contain all of the factors necessary for histone mRNA transcription and pre-mRNA processing. In Drosophila, U7 snRNP is located in the histone locus body rather than the distinc
nuclear speck
discrete extra-nucleolar subnuclear domain, 20-50 in number, in which splicing factors are seen to be localized by immunofluorescence microscopy