Nuclear distributions of NUP62 and NUP214 suggest architectural diversity and spatial patterning among nuclear pore complexes.

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Publication Details

Output type: Journal article

Author list: Kinoshita, Kalir, Dottino, Kohtz

Publisher: Public Library of Science

Publication year: 2012

Journal: PLoS ONE (1932-6203)

Journal acronym: PLOS ONE

Volume number: 7

Issue number: 4

ISSN: 1932-6203

eISSN: 1932-6203

Languages: English-Great Britain (EN-GB)

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Open access status: gold

Full text URL: https://journals.plos.org/plosone/article/file?id=10.1371/journal.pone.0036137&type=printable

Abstract

The shape of nuclei in many adherent cultured cells approximates an oblate ellipsoid, with contralateral flattened surfaces facing the culture plate or the medium. Observations of cultured cell nuclei from orthogonal perspectives revealed that nucleoporin p62 (NUP62) and nucleoporin 214 (NUP214) are differentially distributed between nuclear pore complexes on the flattened surfaces and peripheral rim of the nucleus. High resolution stimulated emission depletion (STED) immunofluorescence microscopy resolved individual NPCs, and suggested both heterogeneity and microheterogeneity in NUP62 and NUP214 immunolabeling among in NPC populations. Similar to nuclear domains and interphase chromosome territories, architectural diversity and spatial patterning of NPCs may be an intrinsic property of the nucleus that is linked to the functions and organization of underlying chromatin.

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