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Nuclear envelope

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and they are selectively removed from the nuclear pore complexes. After that, the rest of the nuclear pore complexes break apart simultaneously. Biochemical evidence suggests that the nuclear pore complexes disassemble into stable pieces rather than disintegrating into small polypeptide fragments.
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which penetrate the membranes. While the two membranes and the endoplasmic reticulum are linked, proteins embedded in the membranes tend to stay put rather than dispersing across the continuum. It is lined with a fiber network called the nuclear lamina which is 10-40 nm thick and provides
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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
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proteins) present in mammals are expressed in the outer nuclear membrane. Nesprin proteins connect cytoskeletal filaments to the nucleoskeleton. Nesprin-mediated connections to the cytoskeleton contribute to nuclear positioning and to the cell’s mechanosensory function.
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and link the nuclear envelope to cytoplasmic intermediate filaments. Nesprin-4 proteins bind the plus end directed motor kinesin-1. The outer nuclear membrane is also involved in development, as it fuses with the inner nuclear membrane to form nuclear pores.
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Raab M, Gentili M, de Belly H, Thiam HR, Vargas P, Jimenez AJ, Lautenschlaeger F, Voituriez R, Lennon-Duménil AM, Manel N, Piel M (2016). "ESCRT III repairs nuclear envelope ruptures during cell migration to limit DNA damage and cell death".
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protein complexes. During nuclear membrane rupture events, DNA double-strand breaks occur. Thus the survival of cells migrating through confined environments appears to depend on efficient nuclear envelope and
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on the inner nuclear membrane. A looser network forms outside to give external support. The actual shape of the nuclear envelope is irregular. It has invaginations and protrusions and can be observed with an
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The nuclear envelope consists of two lipid bilayer membranes: an inner nuclear membrane and an outer nuclear membrane. The space between the membranes is called the perinuclear space. It is usually about
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stage of the cell cycle. This transient rupture is likely caused by nuclear deformation. The rupture is rapidly repaired by a process dependent on "endosomal sorting complexes required for transport" (
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Aberrant nuclear envelope breakdown has also been observed in laminopathies and in cancer cells leading to mislocalization of cellular proteins, the formation of micronuclei and genomic instability.
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M-Cdk's also phosphorylate elements of the nuclear lamina (the framework that supports the envelope) leading to the disassembly of the lamina and hence the envelope membranes into small vesicles.
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Bernstein H, Bernstein C. Sexual communication in archaea, the precursor to meiosis. pp. 103-117 in Biocommunication of Archaea (Guenther Witzany, ed.) 2017. Springer International Publishing
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has given strong evidence that the nuclear membrane is absorbed by the endoplasmic reticulum—nuclear proteins not normally found in the endoplasmic reticulum show up during mitosis.
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Re-shaping of the endoplasmic reticulum—where the parts of the endoplasmic reticulum containing the absorbed nuclear membrane envelop the nuclear space, reforming a closed membrane.
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either form within the membrane, or penetrate it without tearing it apart. In other eukaryotes (animals as well as plants), the nuclear membrane must break down during the
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Wilhelmsen, Kevin; Litjens, Sandy H. M.; Kuikman, Ingrid; Tshimbalanga, Ntambua; Janssen, Hans; van den Bout, Iman; Raymond, Karine; Sonnenberg, Arnoud (2005-12-05).
72: 205:. While it is physically linked, the outer nuclear membrane contains proteins found in far higher concentrations than the endoplasmic reticulum. All four 1789: 960:
Uzer, Gunes; Thompson, William R.; Sen, Buer; Xie, Zhihui; Yen, Sherwin S.; Miller, Sean; Bas, Guniz; Styner, Maya; Rubin, Clinton T. (2015-06-01).
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Crisp, Melissa; Liu, Qian; Roux, Kyle; Rattner, J. B.; Shanahan, Catherine; Burke, Brian; Stahl, Phillip D.; Hodzic, Didier (2006-01-02).
226:, or can bind to proteins in the perinuclear space. Nesprin-3 and -4 may play a role in unloading enormous cargo; Nesprin-3 proteins bind 632: 1970: 707:
Coutinho, Henrique Douglas M; Falcão-Silva, Vivyanne S; Gonçalves, Gregório Fernandes; da Nóbrega, Raphael Batista (20 April 2009).
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in the archaeal host. The adaptive function of the nuclear membrane may have been to serve as a barrier to protect the genome from
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Speijer D (2015). "Birth of the eukaryotes by a set of reactive innovations: New insights force us to relinquish gradual models".
1748: 1736: 453: 371: 278: 240: 188:, the nuclear envelope was automatically segmented and rendered. One vertical and one horizontal slice are added for reference. 2449: 144: 67: 1782: 1181:
Roux, Kyle J.; Crisp, Melissa L.; Liu, Qian; Kim, Daein; Kozlov, Serguei; Stewart, Colin L.; Burke, Brian (2009-02-17).
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In mammals, the nuclear membrane can break down within minutes, following a set of steps during the early stages of
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to access the chromosomes inside. The breakdown and reformation processes are not well understood.
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and origins of the nuclear membrane led to the proposal that the nucleus emerged in the primitive
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Fichtman, Boris; Ramos, Corinne; Rasala, Beth; Harel, Amnon; Forbes, Douglass J. (2010-12-01).
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on the inner aspect of the inner nuclear membrane and give structural support to the nucleus.
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Martin W (2005). "Archaebacteria (Archaea) and the origin of the eukaryotic nucleus".
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In addition to the breakdown of the nuclear membrane during the prometaphase stage of
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Proceedings of the National Academy of Sciences of the United States of America
2318: 2131: 1902: 1897: 1642: 1436:"Transient nuclear envelope rupturing during interphase in human cancer cells" 427: 414: 340: 336: 1273: 1216: 1149: 1091: 1042: 985: 938: 879: 413:, the nuclear membrane also ruptures in migrating mammalian cells during the 315:, about 100 nm across, with an inner channel about 40 nm wide. The 2271: 2220: 2123: 1500: 1404: 1265: 1207: 1076:"Nuclear Envelope-Associated Chromosome Dynamics during Meiotic Prophase I." 477: 473: 442: 262: 181: 128: 1685: 1677: 1650: 1615: 1567: 1518: 1469: 1412: 1340: 1291: 1234: 1167: 1110: 1060: 1003: 946: 897: 840: 744: 1549: 1533: 1141: 1034: 725: 2200: 1937: 1887: 1746:
Illustrations of nuclear pores and transport through the nuclear membrane
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Animations of nuclear pores and transport through the nuclear envelope
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which stabilizes the nuclear membrane as well as being involved in
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of nuclear membrane fuse together to rebuild the nuclear membrane
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A volumetric surface render (red) of the nuclear envelope of one
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Nuclear membrane surrounding the nucleus in eukaryotic cells
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Alberts; et al. (2008). "Chapter 17: The Cell Cycle".
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wide. The outer nuclear membrane is continuous with the
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ancestor (the “prekaryote”), and was triggered by the
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The nuclear envelope is punctured by around a thousand
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Mans BJ, Anantharaman V, Aravind L, Koonin EV (2004).
1307:"The inner nuclear membrane: simple, or very complex?" 2339: 2239: 2209: 2122: 1991: 1880: 1844: 1806: 913:"Nuclei take a position: managing nuclear location" 854:Wilson, Katherine L.; Berk, Jason M. (2010-06-15). 66: 54: 49: 32: 675: 2407:transcription factors and intracellular receptors 627:(4th ed.). New York : Garland. p. 197. 441:Exactly how the nuclear membrane reforms during 1377: 1375: 492:(ROS) produced by the cells' pre-mitochondria. 1964: 1783: 8: 1079:Frontiers in Cell and Developmental Biology 759:"Chloride channels in the Nuclear membrane" 445:of mitosis is debated. Two theories exist— 307:Nuclear pores crossing the nuclear envelope 265:. It is connected to the outer membrane by 218:proteins of Nesprin-1 and -2 are part of a 2213: 1971: 1957: 1949: 1790: 1776: 1768: 911:Burke, Brian; Roux, Kyle J. (2009-11-01). 811:Cold Spring Harbor Perspectives in Biology 1760:at the U.S. National Library of Medicine 1605: 1557: 1508: 1459: 1330: 1281: 1224: 1206: 1157: 1100: 1090: 1050: 993: 928: 887: 830: 734: 724: 618: 616: 614: 612: 610: 184:. The cell was observed in 300 slices of 139:that allow materials to move between the 135:membrane. The nuclear envelope has many 529: 501: 83: 29: 682:. San Diego: Academic Press. p.  201:also shares a common border with the 7: 1305:Georgatos, S. D. (April 19, 2001). 805:Hetzer, Mertin (February 3, 2010). 542:"Cell Nucleus and Nuclear Envelope" 856:"The nuclear envelope at a glance" 25: 38: 279:inner nuclear membrane proteins 241:Inner nuclear membrane proteins 678:Nuclear structure and function 464:Origin of the nuclear membrane 359:stage of mitosis to allow the 145:Intermediate filament proteins 1: 1714:DOI 10.1007/978-3-319-65536-9 1489:Molecular Biology of the Cell 1356:Molecular Biology of The Cell 1254:Molecular Biology of the Cell 1074:Zeng, X; et al. (2018). 764:. Harvard.edu. Archived from 674:Berrios, Miguel, ed. (1998). 625:Molecular biology of the cell 1434:Vargas; et al. (2012). 930:10.1016/j.devcel.2009.10.018 375:Breakdown and reassembly in 151:form a structure called the 1868:Peripheral membrane protein 1532:Hatch; et al. (2016). 1130:The Journal of Cell Biology 1023:The Journal of Cell Biology 823:10.1101/cshperspect.a000539 468:A study of the comparative 209:proteins (nuclear envelope 2466: 2341:Transition nuclear protein 1859:Integral membrane proteins 292: 238: 2420: 2400: 2387: 2367: 2216: 2179:Perinucleolar compartment 1728:Histology image: 20102loa 1643:10.1016/j.mib.2005.10.004 1483:Lim; et al. (2016). 544:. gsu.edu. Archived from 78: 37: 1762:Medical Subject Headings 1323:10.1093/emboj/20.12.2989 1092:10.3389/fcell.2017.00121 538:Georgia State University 508:Less used names include 253:, and is covered by the 1903:Lipid raft/microdomains 1538:Journal of Cell Biology 1501:10.1091/mbc.E16-02-0098 1495:(21). MBoC: 3210–3213. 1405:10.1126/science.aad7611 1266:10.1091/mbc.E10-04-0309 1208:10.1073/pnas.0808602106 623:Alberts, Bruce (2002). 490:reactive oxygen species 404:fluorescence microscopy 1908:Membrane contact sites 1872:Lipid-anchored protein 1854:Membrane glycoproteins 1678:10.1002/bies.201500107 1446:(1). Nucleus: 88–100. 1440:Nucleus (Austin, Tex.) 807:"The Nuclear Envelope" 379: 361:mitotic spindle fibers 313:nuclear pore complexes 308: 259:intermediate filaments 247:inner nuclear membrane 199:outer nuclear membrane 189: 80:Anatomical terminology 2450:Nuclear substructures 1863:transmembrane protein 1631:Curr. Opin. Microbiol 1550:10.1083/jcb.201603053 1142:10.1083/jcb.200506083 1035:10.1083/jcb.200509124 726:10.1186/1742-4933-6-4 713:Immunity & Ageing 374: 347:which undergo closed 306: 239:Further information: 203:endoplasmic reticulum 179: 133:endoplasmic reticulum 119:, which encloses the 1888:Caveolae/Coated pits 1607:10.4161/cc.3.12.1316 319:contain a number of 299:Nuclear pore complex 277:that encode for the 104:, is made up of two 100:, also known as the 2132:Cajal (coiled) body 1993:Envelope (membrane) 1397:2016Sci...352..359R 1199:2009PNAS..106.2194R 649:"Perinuclear space" 186:electron microscopy 171:electron microscope 1979:Structures of the 1913:Membrane nanotubes 1798:Structures of the 1751:2009-02-07 at the 1739:2009-02-07 at the 1452:10.4161/nucl.18954 917:Developmental Cell 872:10.1242/jcs.019042 593:"nuclear membrane" 571:Biology Dictionary 567:"Nuclear membrane" 380: 309: 281:can cause several 263:chromatin function 190: 98:nuclear envelope 61:H1.00.01.2.01001 44:Human cell nucleus 2432: 2431: 2416: 2415: 1946: 1945: 1846:Membrane proteins 1712:978-3-319-65535-2 1544:(1). JCB: 27–36. 1365:978-0-8153-4106-2 1317:(12): 2989–2994. 1260:(23): 4197–4211. 978:10.1002/stem.2004 866:(12): 1973–1978. 595:. Merriam Webster 273:Mutations in the 143:and the nucleus. 94: 93: 89: 16:(Redirected from 2457: 2445:Membrane biology 2425:nucleus diseases 2374:(Nucleoskeleton) 2214: 1973: 1966: 1959: 1950: 1928:Nuclear envelope 1923:Nodes of Ranvier 1792: 1785: 1778: 1769: 1758:Nuclear+membrane 1715: 1704: 1698: 1697: 1661: 1655: 1654: 1626: 1620: 1619: 1609: 1585: 1579: 1578: 1576: 1574: 1561: 1529: 1523: 1522: 1512: 1480: 1474: 1473: 1463: 1431: 1425: 1424: 1391:(6283): 359–62. 1379: 1370: 1369: 1351: 1345: 1344: 1334: 1311:The EMBO Journal 1302: 1296: 1295: 1285: 1245: 1239: 1238: 1228: 1210: 1193:(7): 2194–2199. 1178: 1172: 1171: 1161: 1121: 1115: 1114: 1104: 1094: 1071: 1065: 1064: 1054: 1014: 1008: 1007: 997: 972:(6): 2063–2076. 957: 951: 950: 932: 908: 902: 901: 891: 851: 845: 844: 834: 802: 781: 780: 778: 776: 771:on 2 August 2010 770: 763: 755: 749: 748: 738: 728: 704: 698: 697: 681: 671: 665: 664: 662: 660: 655:. 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Index

Nuclear membrane

TH
H1.00.01.2.01001
FMA
63888
Anatomical terminology
edit on Wikidata
lipid bilayer
membranes
eukaryotic cells
nucleus
genetic material
nm
endoplasmic reticulum
nuclear pores
cytosol
Intermediate filament proteins
lamins
nuclear lamina
nuclear lamina
electron microscope

HeLa cell
electron microscopy
endoplasmic reticulum
nesprin
spectrin repeat
KASH domain
LINC complex

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