Evidence map›Paper›PMID 19106111›Full record

ArticleThe Journal of biological chemistry2009

Critical role of nucleostemin in pre-rRNA processing.

Liudmila Romanova, Anthony Grand, Liying Zhang, Samuel Rayner, Nobuko Katoku-Kikyo, Steven Kellner, Nobuaki Kikyo

Open access · hybridAbstract read
In one paragraph

Article in The Journal of biological chemistry, 2009. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 60 papers.

0numbers the graph read from it
0cells of the map it votes in
60citing papers in PubMed
4.3field-weighted citation impact, top 5% 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

60 citing papers in PubMed, 102 citations in OpenAlex.

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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

7 authors at 1 institution in 1 country.

Liudmila RomanovaStem Cell Institute, Division of Hematology, Oncology and Transplantation, Department of Medicine, University of Minnesota, Minneapolis, Minnesota 55455, USA.
Anthony Grand
Liying Zhang
Samuel Rayner
Nobuko Katoku-Kikyo
Steven Kellner
Nobuaki Kikyo
University of Minnesota · US

Funding

Reversible disassembly of the nucleolus by FRGY proteinsR01GM068027 · NIGMS · UNIVERSITY OF MINNESOTA TWIN CITIES · PI KIKYO, NOBUAKI · 2003 to 2007
$1.7M
NIGMS NIH HHS R01 GM068027
6 · The paper itself

Abstract

Nucleostemin is a nucleolar protein widely expressed in proliferating cells. Nucleostemin is involved in the regulation of cell proliferation, and both depletion and overexpression of nucleostemin induce cell cycle arrest through the p53 signaling pathway. Although the presence of p53-independent functions of nucleostemin has been previously suggested, the identities of these additional functions remained to be investigated. Here, we show that nucleostemin has a novel role as an integrated component of ribosome biogenesis, particularly pre-rRNA processing. Nucleostemin forms a large protein complex (>700 kDa) that co-fractionates with the pre-60 S ribosomal subunit in a sucrose gradient. This complex contains proteins related to pre-rRNA processing, such as Pes1, DDX21, and EBP2, in addition to several ribosomal proteins. We show that the nucleolar retention of DDX21 and EBP2 is dependent on the presence of nucleostemin in the nucleolus. Furthermore, the knockdown of nucleostemin delays the processing of 32 S pre-rRNA into 28 S rRNA. This is accompanied by a substantial decrease of protein synthesis as well as the levels of rRNAs and some mRNAs. In addition, overexpressed nucleostemin significantly promotes the processing of 32 S pre-rRNA. Collectively, these biochemical and functional studies demonstrate a novel role of nucleostemin in ribosome biogenesis. This is a key aspect of the role of nucleostemin in regulating cell proliferation.

Indexed as

Carrier ProteinsCell CycleDEAD-box RNA HelicasesGTP-Binding ProteinsHeLa CellsHumansMultiprotein ComplexesNuclear ProteinsProteinsRibosomesRNA-Binding ProteinsRNA PrecursorsRNA Processing, Post-TranscriptionalRNA, Ribosomal, 28SSignal TransductionTumor Suppressor Protein p53Carrier ProteinsDDX21 protein, humanDEAD-box RNA HelicasesEBNA1BP2 protein, humanGNL3 protein, humanGTP-Binding ProteinsMultiprotein ComplexesNuclear ProteinsPES1 protein, humanProteinsRNA-Binding ProteinsRNA PrecursorsRNA, Ribosomal, 28STP53 protein, humanTumor Suppressor Protein p53

Identifiers

PMID19106111
PMCPMC2643513
OpenAlexW1994823586

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.