Evidence map›Paper›PMID 21850436›Full record

ArticleAmino acids2012

Essential role of eIF5A-1 and deoxyhypusine synthase in mouse embryonic development.

Kazuhiro Nishimura, Seung Bum Lee, Jong Hwan Park, Myung Hee Park

Open access · greenAbstract read
In one paragraph

Article in Amino acids, 2012. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 77 papers.

0numbers the graph read from it
0cells of the map it votes in
77citing papers in PubMed
2.8field-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

77 citing papers in PubMed, 117 citations in OpenAlex.

  1. Translation factors that keep the ribosome Pro-active.Microbiology and molecular biology reviews : MMBR · 2026
    Review
  2. eIF5A and polyamines restrict mRNA levels in response to ribosome stalls.Proceedings of the National Academy of Sciences of the United States of America · 2026
    Article
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  17. Structural Insights into the Mechanisms Underlying Polyaminopathies.International journal of molecular sciences · 2024
    Review
  18. Article
  19. Article
  20. Article

17 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

4 authors at 2 institutions in 2 countries.

Kazuhiro NishimuraOral and Pharyngeal Cancer Branch, NIDCR, National Institutes of Health, Bethesda, MD 20892-4340, USA.
Seung Bum Lee
Jong Hwan Park
Myung Hee Park
National Institute of Dental and Craniofacial Research · USNational Institutes of Health · US

Funding

The Post-translational Synthesis of Hypusine In eIF5A and roles of eIF5A and polyamines in cell growth and animal developmentZIADE000608 · NIDCR · NATIONAL INSTITUTE OF DENTAL & CRANIOFACIAL RESEARCH · PI PARK, MYUNG HEE · 2009 to 2021
$12.3M
Intramural NIH HHS ZIA DE000608
6 · The paper itself

Abstract

The eukaryotic initiation factor 5A (eIF5A) contains a polyamine-derived amino acid, hypusine [N(ε)-(4-amino-2-hydroxybutyl)lysine]. Hypusine is formed post-translationally by the addition of the 4-aminobutyl moiety from the polyamine spermidine to a specific lysine residue, catalyzed by deoxyhypusine synthase (DHPS), and subsequent hydroxylation by deoxyhypusine hydroxylase (DOHH). The eIF5A precursor protein and both of its modifying enzymes are highly conserved, suggesting a vital cellular function for eIF5A and its hypusine modification. To address the functions of eIF5A and the first modification enzyme, DHPS, in mammalian development, we knocked out the Eif5a or the Dhps gene in mice. Eif5a heterozygous knockout mice and Dhps heterozygous knockout mice were viable and fertile. However, homozygous Eif5a1 (gt/gt) embryos and Dhps (gt/gt) embryos died early in embryonic development, between E3.5 and E7.5. Upon transfer to in vitro culture, homozygous Eif5a (gt/gt) or Dhps (gt/gt) blastocysts at E3.5 showed growth defects when compared to heterozygous or wild type blastocysts. Thus, the knockout of either the eIF5A-1 gene (Eif5a) or of the deoxyhypusine synthase gene (Dhps) caused early embryonic lethality in mice, indicating the essential nature of both eIF5A-1 and deoxyhypusine synthase in mammalian development.

Indexed as

Embryonic DevelopmentAnimalsBase SequenceCell LineDNA PrimersEukaryotic Translation Initiation Factor 5AMiceOxidoreductases Acting on CH-NH Group DonorsPeptide Initiation FactorsRNA-Binding Proteinsdeoxyhypusine synthaseDNA PrimersEukaryotic Translation Initiation Factor 5AOxidoreductases Acting on CH-NH Group DonorsPeptide Initiation FactorsRNA-Binding Proteins

Identifiers

PMID21850436
PMCPMC3220921
OpenAlexW1987533090

What Socratic holds

Textmetadata
LicenceTDM
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 Socratic graph.