Nucleolus - Wikipedia
网页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, which is the synthesis of ribosomes.
Nucleolus | Definition, Function, Ribosome, rRNA, Structure, & Facts
网页Nucleolus, spherical body within the nucleus of most eukaryotic cells, involved in the synthesis of ribosomal RNA (rRNA) and the formation of ribosomes. Nucleoli appear shortly after mitosis and form around specific repeating chromosome regions, known as nucleolar organizing regions, within the.
核仁 - 维基百科，自由的百科全书
网页核仁 （nucleolus，複數 nucleoli）是 真核 細胞 細胞核 中的一種結構，通過 電子顯微鏡 乃至 光學顯微鏡 可以觀察到細胞核中的核仁呈均勻的球狀。. 核仁是 核糖體RNA （rRNA） 轉錄 及 加工 、 核糖體 亞基 進行組裝的場所。. 另外，核仁也有輸出、降解 mRNA 等功能 ...
The Nucleolus: Structure and Function - PMC - National Center …
网页The nucleolus is the largest nuclear organelle and is the primary site of ribosome subunit biogenesis in eukaryotic cells. It is assembled around arrays of ribosomal DNA genes, forming specific chromosomal features known as nucleolar organizing regions (NORs) which are the sites of ribosomal DNA transcription.
Dictionary - Cell: Nucleoli - The Human Protein Atlas
网页Nucleoli are rather large non-membrane bound subcompartments in the nucleoplasm. Nucleoli are responsible for the synthesis, processing, and assembly of ribosomes, but they are also involved in several other cellular processes, including stress responses and cell cycle regulation, through sequestration of factors by nucleolar detention.
Nucleolus: definition, structure and function - Kenhub
网页2023年10月30日 · The nucleolus (plural: nucleoli) is a dark-staining, typically spherical body within the nucleus of a cell. It is a dense non-membrane-bound structure which forms a specialized subdomain of the nucleus that is responsible for …
Nucleoli: Composition, Function, and Dynamics - Oxford Academic
网页2011年11月14日 · The nucleus is a highly organized structure. However, unlike cytoplasmic organelles, nuclear substructures are not bounded by membranes, but rather are held together by interactions between their component proteins and nucleic acids, and are thus probably best regarded as giant, extended multimolecular complexes.
The multifunctional nucleolus - Nature Reviews Molecular Cell …
网页The nucleolus is a dynamic structure that disassembles when cells enter mitosis and reassembles following cell division. This involves a complex and highly regulated series of stepwise molecular...
The human cell in nucleoli - The Human Protein Atlas
网页The main function of the nucleolus is to synthesize and assemble ribosomes for later transport to the cytoplasm, where translation takes place. The nucleolus is also involved in cell cycle regulation and cellular stress responses. Example images of proteins localized to the nucleoli can be seen in Figure 1.
Nucleolus: A Central Hub for Nuclear Functions - Cell Press
网页2019年6月5日 · The nucleolus is a membraneless organelle that forms through phase separation in the nucleus (Box 1). Protein accumulation inside nucleoli is a consequence of affinity interactions with core nucleolar components: rDNA, RNA, and nucleolar proteins [10].