Evidence map›Paper›PMID 18676955›Full record

ArticleEukaryotic cell2008

Nucleus-specific importin alpha proteins and nucleoporins regulate protein import and nuclear division in the binucleate Tetrahymena thermophila.

Colin D Malone, Katarzyna A Falkowska, Alanna Y Li, Sarah E Galanti, Reshi C Kanuru, Elizabeth G LaMont, Kate C Mazzarella, Alan J Micev, Morwan M Osman, Nicholas K Piotrowski and 5 more

Open access · diamondAbstract read
In one paragraph

Article in Eukaryotic cell, 2008. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 42 papers.

0numbers the graph read from it
0cells of the map it votes in
42citing papers in PubMed
2.9field-weighted citation impact, top 9% 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

42 citing papers in PubMed, 74 citations in OpenAlex.

  1. Article
  2. Article
  3. Review
  4. Article
  5. Article
  6. Article
  7. Transcriptome analysis of the binucleate ciliateMolecular biology of the cell · 2023
    Article
  8. Article
  9. Article
  10. Article
  11. Organelle size scaling over embryonic development.Wiley interdisciplinary reviews. Developmental biology · 2020
    Review
  12. Review
  13. Article
  14. Article
  15. Article
  16. Review
  17. Article
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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

15 authors at 1 institution in 1 country.

Colin D MaloneBiology Department, Washington University, One Brookings Drive, Campus Box 1137, St. Louis, MO 63130, USA.
Katarzyna A Falkowska
Alanna Y Li
Sarah E Galanti
Reshi C Kanuru
Elizabeth G LaMont
Kate C Mazzarella
Alan J Micev
Morwan M Osman
Nicholas K Piotrowski
Jason W Suszko
Adam C Timm
Ming-Ming Xu
Lucy Liu
Douglas L Chalker
Washington University in St. Louis · US

Funding

Howard Hughes Medical InstituteNIGMS NIH HHS GM06593
6 · The paper itself

Abstract

The ciliate Tetrahymena thermophila, having both germ line micronuclei and somatic macronuclei, must possess a specialized nucleocytoplasmic transport system to import proteins into the correct nucleus. To understand how Tetrahymena can target proteins to distinct nuclei, we first characterized FG repeat-containing nucleoporins and found that micro- and macronuclei utilize unique subsets of these proteins. This finding implicates these proteins in the differential permeability of the two nuclei and implies that nuclear pores with discrete specificities are assembled within a single cell. To identify the import machineries that interact with these different pores, we characterized the large families of karyopherin homologs encoded within the genome. Localization studies of 13 putative importin (imp) alpha- and 11 imp beta-like proteins revealed that imp alpha-like proteins are nucleus specific--nine localized to the germ line micronucleus--but that most imp beta-like proteins localized to both types of nuclei. These data suggest that micronucleus-specific proteins are transported by specific imp alpha adapters. The different imp alpha proteins exhibit substantial sequence divergence and do not appear to be simply redundant in function. Disruption of the IMA10 gene encoding an imp alpha-like protein that accumulates in dividing micronuclei results in nuclear division defects and lethality. Thus, nucleus-specific protein import and nuclear function in Tetrahymena are regulated by diverse, specialized karyopherins.

Indexed as

Cell Nucleus Divisionalpha KaryopherinsAmino Acid SequenceAnimalsCell NucleusMacronucleusMolecular Sequence DataNuclear Pore Complex ProteinsProtein Structure, TertiaryProtein TransportProtozoan ProteinsSequence AlignmentTetrahymena thermophilaalpha KaryopherinsNuclear Pore Complex ProteinsProtozoan Proteins

Identifiers

PMID18676955
PMCPMC2547059
OpenAlexW2110821275

What OpenQuestion holds

Textmetadata
Read underepoch 390

Registered trials

None linked

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.