Evidence map›Paper›PMID 12221128›Full record

ArticleMolecular biology of the cell2002

Centrosomal proteins CG-NAP and kendrin provide microtubule nucleation sites by anchoring gamma-tubulin ring complex.

Mikiko Takahashi, Akiko Yamagiwa, Tamako Nishimura, Hideyuki Mukai, Yoshitaka Ono

Open access · greenAbstract read
In one paragraph

Article in Molecular biology of the cell, 2002. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 114 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
114citing papers in PubMed, 1 pooled it
5.8field-weighted citation impact, top 3% 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

114 citing papers in PubMed, 1 synthesis or guideline pooled it, 219 citations in OpenAlex.

  1. Pooled it
  2. Article
  3. Article
  4. Article
  5. Exploring AKAPs in visual signaling.Frontiers in molecular neuroscience · 2024
    Review
  6. Review
  7. Review
  8. Article
  9. Article
  10. Article
  11. Review
  12. γ-Tubulin in microtubule nucleation and beyond.Frontiers in cell and developmental biology · 2022
    Review
  13. Moonlighting at the Poles: Non-Canonical Functions of Centrosomes.Frontiers in cell and developmental biology · 2022
    Review
  14. Review
  15. Article
  16. Review
  17. Article
  18. Review
  19. Article
  20. Article

54 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.

Mikiko TakahashiBiosignal Research Center, Kobe University, Japan.
Akiko Yamagiwa
Tamako Nishimura
Hideyuki Mukai
Yoshitaka Ono
Kobe University · JP

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Microtubule assembly is initiated by the gamma-tubulin ring complex (gamma-TuRC). In yeast, the microtubule is nucleated from gamma-TuRC anchored to the amino-terminus of the spindle pole body component Spc110p, which interacts with calmodulin (Cmd1p) at the carboxy-terminus. However, mammalian protein that anchors gamma-TuRC remains to be elucidated. A giant coiled-coil protein, CG-NAP (centrosome and Golgi localized PKN-associated protein), was localized to the centrosome via the carboxyl-terminal region. This region was found to interact with calmodulin by yeast two-hybrid screening, and it shares high homology with the carboxyl-terminal region of another centrosomal coiled-coil protein, kendrin. The amino-terminal region of either CG-NAP or kendrin indirectly associated with gamma-tubulin through binding with gamma-tubulin complex protein 2 (GCP2) and/or GCP3. Furthermore, endogenous CG-NAP and kendrin were coimmunoprecipitated with each other and with endogenous GCP2 and gamma-tubulin, suggesting that CG-NAP and kendrin form complexes and interact with gamma-TuRC in vivo. These proteins were localized to the center of microtubule asters nucleated from isolated centrosomes. Pretreatment of the centrosomes by antibody to CG-NAP or kendrin moderately inhibited the microtubule nucleation; moreover, the combination of these antibodies resulted in stronger inhibition. These results imply that CG-NAP and kendrin provide sites for microtubule nucleation in the mammalian centrosome by anchoring gamma-TuRC.

Indexed as

Adaptor Proteins, Signal TransducingCytoskeletal ProteinsA Kinase Anchor ProteinsAmino Acid SequenceAnimalsCalmodulin-Binding ProteinsCarrier ProteinsCell LineCell NucleusCentrosomeCHO CellsCOS CellsCricetinaeDNA, ComplementaryHeLa CellsHumansAdaptor Proteins, Signal TransducingAKAP9 protein, humanA Kinase Anchor ProteinsCalmodulin-Binding ProteinsCarrier ProteinsCytoskeletal ProteinsDNA, ComplementarykendrinMicrotubule-Associated ProteinsTUBGCP2 protein, humanTUBGCP3 protein, humanTubulin

Identifiers

PMID12221128
PMCPMC124155
OpenAlexW2119656310

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.