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Multivalent weak interactions between assembly units drive synaptonemal complex formation
DOI:10.1083/jcb.201910086.png)
摘要
En 中文
The synaptonemal complex (SC) is an ordered but highly dynamic structure assembled between homologous chromosomes to control interhomologous crossover formation, ensuring accurate meiotic chromosome segregation. However, the mechanisms regulating SC assembly and dynamics remain unclear. Here, we identified two new SC components, SYP-5 and SYP-6, in Caenorhabditis elegans that have distinct expression patterns and form distinct SC assembly units with other SYPs through stable interactions. SYP-5 and SYP-6 exhibit diverse in vivo SC regulatory functions and distinct phase separation properties in cells. Charge-interacting elements (CIEs) are enriched in SC intrinsically disordered regions (IDRs), and IDR deletion or CIE removal confirmed a requirement for these elements in SC regulation. Our data support the theory that multivalent weak interactions between the SC units drive SC formation and that CIEs confer multivalency to the assembly units.
Keyword:
MEIOTIC PROPHASE
PHASE-SEPARATION
CROSSING-OVER
PROTEIN
MEIOSIS
SYNAPSIS
PROMOTES
KINASE
PHOSPHORYLATION
ORGANIZATION
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期刊
IF:
6.4
论文数:
1.2W
被引数:
5.7W
机构
引用论文
Sequence Determinants of Intracellular Phase Separation by Complex Coacervation of a Disordered Protein
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SYP-3 restricts synaptonemal complex assembly to bridge paired. chromosome axes during meiosis in Caenorhabditis elegans
GENETICS
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The Ecm11-Gmc2 Complex Promotes Synaptonemal Complex Formation through Assembly of Transverse Filaments in Budding Yeast
PLOS GENETICS
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A family of zinc-finger proteins is required for chromosome-specific pairing and synapsis during meiosis in C. elegans
DEVELOPMENTAL CELL
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