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  2. Nucleolus - Wikipedia

    en.wikipedia.org/wiki/Nucleolus

    The nucleolus (/ nj uː ˈ k l iː ə l ə s, ˌ nj uː k l i ˈ oʊ l ə s /; pl.: nucleoli /-l aɪ /) is the largest structure in the nucleus of eukaryotic cells. [1] It is best known as the site of ribosome biogenesis. The nucleolus also participates in the formation of signal recognition particles and plays a role in the cell's response to ...

  3. Nucleoplasm - Wikipedia

    en.wikipedia.org/wiki/Nucleoplasm

    The protoplasmic material of the nucleus including the nucleolus labelled as nucleoplasm.. The nucleoplasm, also known as karyoplasm, [1] is the type of protoplasm that makes up the cell nucleus, the most prominent organelle of the eukaryotic cell.

  4. Cajal body - Wikipedia

    en.wikipedia.org/wiki/Cajal_body

    P80-coilin is a specific marker for coiled bodies, [9] and demonstrates these bodies tend to be associated with the nucleolus when cells are not dividing. CBs are associated with telomerase assembly and recruitment via a CAB-RNA sequence common in both CB RNAs ( scaRNAs ) and the RNA component of telomerase (TERC).

  5. Nuclear organization - Wikipedia

    en.wikipedia.org/wiki/Nuclear_Organization

    NADs are associated with nucleolus function. The nucleolus is the largest sub-organelle within the nucleus and is the principal site for rRNA transcription. It also acts in signal recognition particle biosynthesis, protein sequestration, and viral replication. [36] The nucleolus forms around rDNA genes from different chromosomes.

  6. Nuclear bodies - Wikipedia

    en.wikipedia.org/wiki/Nuclear_bodies

    One hypothesized function of the dots is as a 'nuclear dump' or 'storage depot'. [21] The nuclear bodies may not all perform the same function. Sp140 associates with certain bodies and appears to be involved in transcriptional activation. [22] ND10 nuclear bodies have been shown to play a major role in chromatin regulation. [23]

  7. Nucleolus organizer region - Wikipedia

    en.wikipedia.org/wiki/Nucleolus_organizer_region

    The location of NORs and the nucleolar cycle in human cells. Nucleolus organizer regions (NORs) are chromosomal regions crucial for the formation of the nucleolus.In humans, the NORs are located on the short arms of the acrocentric chromosomes 13, 14, 15, 21 and 22, the genes RNR1, RNR2, RNR3, RNR4, and RNR5 respectively. [1]

  8. Perinucleolar compartment - Wikipedia

    en.wikipedia.org/wiki/Perinucleolar_Compartment

    The perinucleolar compartment (PNC) is a subnuclear body characterized by its location at the periphery of the nucleolus. [1] The PNC participates in the patterned compartmentalization inside the nucleus to organize the specialized functions.

  9. Cell (biology) - Wikipedia

    en.wikipedia.org/wiki/Cell_(biology)

    The nucleolus is a specialized region within the nucleus where ... The primary function of the Golgi apparatus is to process and package the macromolecules such as ...