Nuclear lamina
Nuclear Lamina
The Nuclear Lamina (pronunciation: noo-klee-er lam-in-uh) is a dense fibrillar network inside the nucleus of a eukaryotic cell. It is composed of intermediate filaments and membrane associated proteins.
Etymology
The term "Nuclear Lamina" is derived from the Latin words 'nucleus' meaning 'kernel' and 'lamina' meaning 'thin plate'.
Function
The Nuclear Lamina provides mechanical support to the nucleus and also helps in organizing the interphase chromosomes. It is involved in various activities such as DNA replication, transcription, nuclear and chromatin organization.
Structure
The main components of the nuclear lamina are the lamins, which are categorized as A-type and B-type based on their biochemical properties. A-type lamins include lamin A and C, while B-type lamins include lamin B1 and B2.
Related Terms
- Lamins: They are the structural proteins that make up the nuclear lamina.
- Nucleus: It is the central part of the cell where the nuclear lamina is located.
- Chromosomes: These are the structures that the nuclear lamina helps to organize during interphase.
- DNA replication: One of the processes that the nuclear lamina is involved in.
- Transcription: Another process that the nuclear lamina is involved in.
See Also
External links
- Medical encyclopedia article on Nuclear lamina
- Wikipedia's article - Nuclear lamina
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