ArticleNature communications2025
Positively charged specificity site in cyclin B1 is essential for mitotic fidelity.
Article in Nature communications, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 7 papers.
What it found
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The trial behind it
Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.
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Who cites it
7 citing papers in PubMed.
- The Small but Versatile Cyclin-Dependent Kinase Subunit CKS: C. elegans CKS-1 Regulates Anaphase Onset and Is Required for Anaphase B During Oocyte Meiosis.BioEssays : news and reviews in molecular, cellular and developmental biology · 2026Review
- PDZ-binding kinase promotes ovarian cancer cell proliferation and invasion viaTranslational cancer research · 2026Article
- Cyclin B3-CDK1 couples translational de-repression to embryonic mitoses via OMA protein degradation inbioRxiv : the preprint server for biology · 2026Article
- Tumor necrosis factor α-induced endoplasmic reticulum stress promotes airway smooth muscle cell proliferation.American journal of physiology. Lung cellular and molecular physiology · 2026Article
- Countervailing effects of cyclin isoforms A and B during mitosis.bioRxiv : the preprint server for biology · 2026Article
- Dual Regulatory Roles of SlGAMYB1 in Tomato Development: GA-Dependent and GA-Independent Mechanisms.Plants (Basel, Switzerland) · 2025Article
- Phosphate-binding pocket on cyclin B governs CDK substrate phosphorylation and mitotic timing.Nature communications · 2025Article
Corrections and comments
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Authors and funding
10 authors.
Funding
Abstract
Phosphorylation of substrates by cyclin-dependent kinases (CDKs) is the driving force of cell cycle progression. Several CDK-activating cyclins are involved, yet how they contribute to substrate specificity is still poorly understood. Here, we discover that a positively charged pocket in cyclin B1, which is exclusively conserved within B-type cyclins and binds phosphorylated serine- or threonine-residues, is essential for correct execution of mitosis. HeLa cells expressing pocket mutant cyclin B1 are strongly delayed in anaphase onset due to multiple defects in mitotic spindle function and timely activation of the E3 ligase APC/C. Pocket integrity is essential for APC/C phosphorylation particularly at non-consensus CDK1 sites and full in vitro ubiquitylation activity. Our results support a model in which cyclin B1's pocket facilitates sequential substrate phosphorylations involving initial priming events that assist subsequent pocket-dependent phosphorylations even at non-consensus CDK1 motifs.
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Registered trials
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 Socratic graph.