Evidence map›Paper›PMID 1851086›Full record

ArticleThe EMBO journal1991

Disassembly of in vitro formed lamin head-to-tail polymers by CDC2 kinase.

M Peter, E Heitlinger, M Häner, U Aebi, E A Nigg

Open access · bronzeAbstract read
In one paragraph

Article in The EMBO journal, 1991. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 62 papers.

0numbers the graph read from it
0cells of the map it votes in
62citing papers in PubMed
5.3field-weighted citation impact, top 4% of its field
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

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.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

62 citing papers in PubMed, 187 citations in OpenAlex.

  1. Article
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  7. Analog-sensitive Cdk1 as a tool to study mitotic exit: protein phosphatase 1 is required downstream from Cdk1 inactivation in budding yeast.Chromosome research : an international journal on the molecular, supramolecular and evolutionary aspects of chromosome biology · 2023
    Article
  8. Article
  9. Review
  10. Article
  11. Dephosphorylation in nuclear reassembly after mitosis.Frontiers in cell and developmental biology · 2022
    Review
  12. Article
  13. Article
  14. Review
  15. Review
  16. Article
  17. Article
  18. Article
  19. Article
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2 more citing papers are in PubMed but not listed here.

4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

5 authors at 1 institution in 1 country.

M PeterSwiss Institute for Experimental Cancer Research (ISREC), Epalinges.
E Heitlinger
M Häner
U Aebi
E A Nigg
Swiss Group For Clinical Cancer Research · CH

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

The nuclear lamina is an intermediate filament-type network underlying the inner nuclear membrane. At the onset of mitosis it depolymerizes, presumably in response to phosphorylation of the lamin proteins. Recently, cdc2 kinase, a major regulator of the eukaryotic cell cycle, was shown to induce lamina depolymerization when incubated with isolated nuclei. Here, we have analysed the structural consequences of lamin phosphorylation by cdc2 kinase using lamin head-to-tail polymers reconstituted in vitro from bacterially expressed chicken lamin B2 protein as a substrate. The effects of phosphorylation were monitored by both a pelleting assay and electron microscopy. We show that lamin B2 head-to-tail polymers disassemble in response to phosphorylation of specific sites that are phosphorylated also during mitosis in vivo. These sites are located within SP/TP motifs N- and C-terminal to the central alpha-helical rod domain of lamin proteins. Subsequent dephosphorylation of these sites by purified phosphatase 1 allows reformation of lamin head-to-tail polymers. The relative importance of N- and C-terminal phosphorylation sites for controlling the assembly state of nuclear lamins was assessed by mutational analysis. Polymers formed of lamin proteins carrying mutations in the C-terminal phosphoacceptor motif could still be disassembled by cdc2 kinase. In contrast, a single point mutation in the N-terminal site (Ser16----Ala) rendered head-to-tail polymers resistant to disassembly. These results emphasize the importance of the N-terminal end domain for lamin head-to-tail polymerization in vitro, and they demonstrate that phosphorylation-dephosphorylation is sufficient to control the longitudinal assembly of lamin B2 dimers.

Indexed as

Lamin Type BAdenosine TriphosphateAmino Acid SequenceCDC2 Protein KinaseDNA Mutational AnalysisIn Vitro TechniquesLaminsMacromolecular SubstancesMitosisMolecular Sequence DataNuclear ProteinsPhosphoprotein PhosphatasesPhosphorylationProtein Phosphatase 1Recombinant ProteinsStructure-Activity RelationshipAdenosine TriphosphateCDC2 Protein KinaseLaminsLamin Type BMacromolecular SubstancesNuclear ProteinsPhosphoprotein PhosphatasesProtein Phosphatase 1Recombinant Proteins

Identifiers

PMID1851086
PMCPMC452817
OpenAlexW2340807121

What OpenQuestion holds

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Registered trials

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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.