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The central element...
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Hernandez-Hernandez, A
(author)
The central element of the synaptonemal complex in mice is organized as a bilayered junction structure
- Article/chapterEnglish2016
Publisher, publication year, extent ...
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2016-01-01
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The Company of Biologists,2016
Numbers
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LIBRIS-ID:oai:prod.swepub.kib.ki.se:133905257
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http://kipublications.ki.se/Default.aspx?queryparsed=id:133905257URI
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https://doi.org/10.1242/jcs.182477DOI
Supplementary language notes
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Language:English
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Summary in:English
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Subject category:ref swepub-contenttype
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Subject category:art swepub-publicationtype
Notes
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The synaptonemal complex (SC) transiently stabilizes pairing interactions between homologous chromosomes during meiosis. Assembly of the SC is mediated through integration of opposing transverse filaments (TF) into a central element (CE), a process that is poorly understood. We have here analyzed the localization of the TF protein SYCP1 and the CE proteins SYCE1, SYCE2 and SYCE3 within the central region of the SC in mouse spermatocytes using immunoelectron microscopy. Distribution of immuno-gold particles in a lateral view of the SC, supported by protein interaction data, suggest that the N-terminal region of SYCP1 and SYCE3 form a joint bilayered central structure and that SYCE1 and SYCE2 localize in between the two layers. We find that disruption of SYCE2 and TEX12 (a fourth CE protein) localization to the CE abolishes central alignment of the N-terminal region of SYCP1. Thus, our results show that all four CE proteins in an interdependent manner contribute to stabilization of opposing N-terminal regions of SYCP1, forming a bilayered TF-CE junction structure that promotes SC formation and synapsis.
Subject headings and genre
Added entries (persons, corporate bodies, meetings, titles ...)
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Masich, SKarolinska Institutet
(author)
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Fukuda, T
(author)
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Kouznetsova, AKarolinska Institutet
(author)
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Sandin, S
(author)
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Daneholt, B
(author)
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Hoog, CKarolinska Institutet
(author)
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Karolinska Institutet
(creator_code:org_t)
Related titles
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In:Journal of cell science: The Company of Biologists129:11, s. 2239-22491477-91370021-9533
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