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The nuclear lamina consists of two components, lamins and nuclear lamin-associated membrane proteins. The lamins are type V intermediate filaments which can be categorized as either A-type (lamin A, C) or B-type (lamin B 1, B 2) according to homology of their DNA sequences, biochemical properties and cellular localization during the cell cycle.
Nuclear lamins interact with inner nuclear membrane proteins to form the nuclear lamina on the interior of the nuclear envelope. Lamins have elastic and mechanosensitive properties, and can alter gene regulation in a feedback response to mechanical cues. [1] Lamins are present in all animals but are not found in microorganisms, plants or fungi.
Rexed never described this as lamina X but as area X. [7] Anterior grey column: VIII–IX Lamina VIII: motor interneurons; Lamina IX: hypaxial (body wall muscles), lateral (in limb regions) and medial (back muscles) motor neurons, also phrenic and spinal accessory nuclei at cervical levels, and Onuf's nucleus in the sacral region
The nuclear envelope is made up of two lipid bilayer membranes, an inner nuclear membrane and an outer nuclear membrane. These membranes are connected to each other by nuclear pores. Two sets of intermediate filaments provide support for the nuclear envelope. An internal network forms the nuclear lamina on the inner nuclear membrane. [7]
The nuclear pore complex (NPC), is a large protein complex giving rise to the nuclear pore. Nuclear pores are found in the nuclear envelope that surrounds the cell nucleus in eukaryotic cells . The nuclear envelope is studded by a great number of nuclear pores that give access to various molecules, to and from the nucleoplasm and the cytoplasm.
4001 16906 Ensembl ENSG00000113368 ENSMUSG00000024590 UniProt P20700 P14733 RefSeq (mRNA) NM_001198557 NM_005573 NM_010721 RefSeq (protein) NP_001185486 NP_005564 NP_034851 Location (UCSC) Chr 5: 126.78 – 126.84 Mb Chr 18: 56.84 – 56.89 Mb PubMed search Wikidata View/Edit Human View/Edit Mouse Lamin-B1 is a protein that in humans is encoded by the LMNB1 gene. The nuclear lamina consists of ...
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The nuclear lamina consist of a two-dimensional matrix of proteins located next to the inner nuclear membrane. The lamin family of proteins make up the matrix and are highly conserved in evolution. During mitosis, the lamina matrix is reversibly disassembled as the lamin proteins are phosphorylated.