FIBRILLAR CENTRE Meaning and
Definition
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The term "fibrillar centre" refers to a specialized region within the cell nucleus characterized by the presence of thread-like structures called fibrils. Found predominantly in the nucleolus, which is a distinct sub-compartment of the nucleus, the fibrillar centre plays a crucial role in the regulation and coordination of various nuclear functions.
The fibrillar centre is composed of DNA, RNA, and certain proteins that are involved in processes such as transcription and RNA processing. It provides a platform for the assembly of components required for the synthesis and maturation of ribosomes, the cellular machinery responsible for protein synthesis. The fibrils present within this region are believed to be involved in the organization and assembly of ribosomal DNA (rDNA) into transcriptionally active regions, ensuring efficient formation of ribosomes.
Additionally, the fibrillar centre is implicated in the regulation of gene expression and chromatin organization. It is thought to act as a scaffold for various proteins and RNAs involved in modifying and maintaining the structure of genetic material within the nucleus. This structural organization is essential for the proper functioning of genes and maintenance of genome stability.
Overall, the fibrillar centre is a specialized nuclear compartment involved in crucial nuclear processes, primarily ribosome assembly, gene regulation and chromatin organization. Its role in these functions highlights its significance in cellular processes related to protein synthesis and genetic regulation.
Common Misspellings for FIBRILLAR CENTRE
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Etymology of FIBRILLAR CENTRE
The word "fibrillar centre" is a term used in molecular biology and refers to a specific region within the nucleus of a cell where RNA transcription and processing occur.
Etymologically, "fibrillar" stems from the Latin word "fibra", which means "fiber" or "thread". In the context of the fibrillar centre, it describes the thread-like appearance of the structures found in this area.
The term "centre" comes from the Latin word "centrum", meaning "middle" or "center". In the context of the fibrillar centre, it refers to the central location within the nucleus where these fibrous structures are found.
Thus, the term "fibrillar centre" denotes the thread-like structures located in the central region of the nucleus.
