Nuclear Membrane

The nuclear membrane is a layer of semipermeable protein membrane that separates the nucleus from the cytoplasm in most eukaryotes. It plays an important role in the regulation of biochemical processes occurring both in the nucleus and in the cytoplasm.

The nuclear membrane consists of a lipid bilayer in which the hydrophobic regions of membrane-permeating proteins interact with lipids. Proteins of the nuclear matrix (nuclear bodies) form a framework and hold in the matrix all the enzymes that are associated with them and ensure the placement of chromosomes. The nuclear membrane contains a number of proteins and regulatory structures that control the regulation of cell division and chromosome division (mitosis), the dissemination of genetic information through DNA replication, the processes of RNA transcription and translation, etc. This means that it is the center of control over such fundamental aspects of biology such as the transmission of hereditary information, regulation of the cell cycle and cell activity. The outer surface of the nuclear membrane is covered with glycoproteins, which ensure the stability of the membrane and its perception of extracellular signals. Integra molecules are attached to the outer end of the nuclear membrane.