Evidence map›Paper›PMID 22128152›Full record

ArticleThe Journal of biological chemistry2012

Post-translational modification by β-lysylation is required for activity of Escherichia coli elongation factor P (EF-P).

Jong-Hwan Park, Hans E Johansson, Hiroyuki Aoki, Bill X Huang, Hee-Yong Kim, M Clelia Ganoza, Myung Hee Park

Open access · hybridAbstract read
In one paragraph

Article in The Journal of biological chemistry, 2012. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 40 papers.

0numbers the graph read from it
0cells of the map it votes in
40citing papers in PubMed
2.7field-weighted citation impact, top 10% 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

40 citing papers in PubMed, 62 citations in OpenAlex.

  1. Translation factors that keep the ribosome Pro-active.Microbiology and molecular biology reviews : MMBR · 2026
    Review
  2. Article
  3. Article
  4. Article
  5. Article
  6. Article
  7. Article
  8. Article
  9. Article
  10. Article
  11. Functions and Regulation of Translation Elongation Factors.Frontiers in molecular biosciences · 2021
    Review
  12. Article
  13. Frontiers in immunology · 2020
    Article
  14. Article
  15. Article
  16. Review
  17. Review
  18. Translation Elongation and Recoding in Eukaryotes.Cold Spring Harbor perspectives in biology · 2018
    Review
  19. Article
  20. Article
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 4 institutions in 2 countries.

Jong-Hwan ParkOral and Pharyngeal Cancer Branch, NIDCR, National Institutes of Health, Bethesda, Maryland 20892, USA.
Hans E Johansson
Hiroyuki Aoki
Bill X Huang
Hee-Yong Kim
M Clelia Ganoza
Myung Hee Park
National Institute of Dental and Craniofacial Research · USNational Institutes of Health · USUniversity of Toronto · CABiosearch Technologies (United States) · US

Funding

Alterations In Lipid Metabolism In The Nervous System By EthanolZIAAA000284 · NIAAA · NATIONAL INSTITUTE ON ALCOHOL ABUSE AND ALCOHOLISM · PI KIM, HEE-YONG · 2009 to 2025
$35.4M
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
6 · The paper itself

Abstract

Bacterial elongation factor P (EF-P) is the ortholog of archaeal and eukaryotic initiation factor 5A (eIF5A). EF-P shares sequence homology and crystal structure with eIF5A, but unlike eIF5A, EF-P does not undergo hypusine modification. Recently, two bacterial genes, yjeA and yjeK, encoding truncated homologs of class II lysyl-tRNA synthetase and of lysine-2,3-aminomutase, respectively, have been implicated in the modification of EF-P to convert a specific lysine to a hypothetical β-lysyl-lysine. Here we present biochemical evidence for β-lysyl-lysine modification in Escherichia coli EF-P and for its role in EF-P activity by characterizing native and recombinant EF-P proteins for their modification status and activity in vitro. Mass spectrometric analyses confirmed the lysyl modification at lysine 34 in native and recombinant EF-P proteins. The β-lysyl-lysine isopeptide was identified in the exhaustive Pronase digests of native EF-P and recombinant EF-P isolated from E. coli coexpressing EF-P, YjeA, and YjeK but not in the digests of proteins derived from the vectors encoding EF-P alone or EF-P together with YjeA, indicating that both enzymes, YjeA and YjeK, are required for β-lysylation of EF-P. Endogenous EF-P as well as the recombinant EF-P preparation containing β-lysyl-EF-P stimulated N-formyl-methionyl-puromycin synthesis ∼4-fold over the preparations containing unmodified EF-P and/or α-lysyl-EF-P. The mutant lacking the modification site lysine (K34A) was inactive. This is the first report of biochemical evidence for the β-lysylation of EF-P in vivo and the requirement for this modification for the activity of EF-P.

Indexed as

DeoxyribonucleasesEscherichia coliEscherichia coli ProteinsLysineMass SpectrometryPeptide Elongation FactorsProtein Processing, Post-TranslationalRecombinant ProteinsDeoxyribonucleasesEscherichia coli Proteinsfactor EF-PLysinePeptide Elongation FactorsRecombinant ProteinsyjeA protein, E coli

Identifiers

PMID22128152
PMCPMC3268417
OpenAlexW2025659013

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.