ArticleNucleus (Austin, Tex.)2020
The role of phosphorylation in the elasticity of the tethers that connect telomeres of separating anaphase chromosomes.
Article in Nucleus (Austin, Tex.), 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 9 papers.
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Who cites it
9 citing papers in PubMed, 13 citations in OpenAlex.
- Titin Is Present in the Elastic Tethers That Connect Separating Anaphase Chromosomes in Crane-Fly Spermatocytes.Cytoskeleton (Hoboken, N.J.) · 2026Article
- Novel kinase regulators of extracellular matrix internalisation identified by high-content screening modulate invasive carcinoma cell migration.PLoS biology · 2024Article
- Shining Light in Mechanobiology: Optical Tweezers, Scissors, and Beyond.ACS photonics · 2024Review
- Blocking microtubule deacetylation inhibits anaphase chromosome movements in crane-fly spermatocytes.PloS one · 2024Article
- Structural evidence for elastic tethers connecting separating chromosomes in crane-fly spermatocytes.Life science alliance · 2023Article
- Physiological relevance of post-translational regulation of the spindle assembly checkpoint protein BubR1.Cell & bioscience · 2021Review
- Blocking Protein Phosphatase 1 [PP1] Prevents Loss of Tether Elasticity in Anaphase Crane-Fly Spermatocytes.Frontiers in molecular biosciences · 2021Article
- Elastic Tethers Between Separating Anaphase Chromosomes Regulate the Poleward Speeds of the Attached Chromosomes in Crane-Fly Spermatocytes.Frontiers in molecular biosciences · 2020Article
- Evidence of Non-microtubule Spindle Forces inFrontiers in molecular biosciences · 2020Article
Corrections and comments
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Authors and funding
2 authors at 1 institution in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
Elastic tethers, connecting telomeres of all separating anaphase chromosome pairs, lose elasticity when they lengthen during anaphase. Treatment with phosphatase inhibitor CalyculinA causes anaphase chromosomes to move backwards after they reach the poles, suggesting that dephosphorylation causes loss of tether elasticity. We added 50nM CalyculinA to living anaphase crane-fly spermatocytes with different length tethers. When tethers were short, almost all partner chromosomes moved backwards after nearing the poles. When tethers were longer, fewer chromosomes moved backwards. With yet longer tethers none moved backward. This is consistent with tether elasticity being lost by dephosphorylation. 50nM CalyculinA blocks both PP1 and PP2A. To distinguish between PP1 and PP2A we treated cells with short tethers with 50nM okadaic acid which blocks solely PP2A, or with 1µM okadaic acid which blocks both PP1 and PP2A. Only 1µM okadaic acid caused chromosomes to move backward. Thus, tether elasticity is lost because of dephosphorylation by PP1.
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Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.