Evidence map›Paper›PMID 24532069›Full record

ArticleApplied and environmental microbiology2014

A new subfamily of polyphosphate kinase 2 (class III PPK2) catalyzes both nucleoside monophosphate phosphorylation and nucleoside diphosphate phosphorylation.

Kei Motomura, Ryuichi Hirota, Mai Okada, Takeshi Ikeda, Takenori Ishida, Akio Kuroda

Open access · bronzeAbstract read
In one paragraph

Article in Applied and environmental microbiology, 2014. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 51 papers.

0numbers the graph read from it
0cells of the map it votes in
51citing papers in PubMed
3.0field-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

51 citing papers in PubMed, 123 citations in OpenAlex.

  1. Article
  2. The roles and synthesis of inorganic polyphosphate inbioRxiv : the preprint server for biology · 2026
    Article
  3. Article
  4. Article
  5. Article
  6. Article
  7. Article
  8. Article
  9. Article
  10. Article
  11. Review
  12. Article
  13. Polyphosphate Kinase fromInternational journal of molecular sciences · 2024
    Article
  14. Article
  15. Article
  16. Review
  17. Article
  18. Article
  19. Semirational engineering ofApplied and environmental microbiology · 2023
    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

6 authors at 1 institution in 1 country.

Kei MotomuraDepartment of Molecular Biotechnology, Graduate School of Advanced Sciences of Matter, Hiroshima University, Higashi-Hiroshima, Hiroshima, Japan.
Ryuichi Hirota
Mai Okada
Takeshi Ikeda
Takenori Ishida
Akio Kuroda
Hiroshima University · JP

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Inorganic polyphosphate (polyP) is a linear polymer of tens to hundreds of phosphate (Pi) residues linked by "high-energy" phosphoanhydride bonds as in ATP. PolyP kinases, responsible for the synthesis and utilization of polyP, are divided into two families (PPK1 and PPK2) due to differences in amino acid sequence and kinetic properties. PPK2 catalyzes preferentially polyP-driven nucleotide phosphorylation (utilization of polyP), which is important for the survival of microbial cells under conditions of stress or pathogenesis. Phylogenetic analysis suggested that the PPK2 family could be divided into three subfamilies (classes I, II, and III). Class I and II PPK2s catalyze nucleoside diphosphate and nucleoside monophosphate phosphorylation, respectively. Here, we demonstrated that class III PPK2 catalyzes both nucleoside monophosphate and nucleoside diphosphate phosphorylation, thereby enabling us to synthesize ATP from AMP by a single enzyme. Moreover, class III PPK2 showed broad substrate specificity over purine and pyrimidine bases. This is the first demonstration that class III PPK2 possesses both class I and II activities.

Indexed as

BacteriaNucleoside Diphosphate SugarsNucleotides, CyclicPhosphorylationPhosphotransferases (Phosphate Group Acceptor)Substrate SpecificityNucleoside Diphosphate Sugarsnucleoside monophosphate sugarsNucleotides, CyclicPhosphotransferases (Phosphate Group Acceptor)polyphosphate kinase

Identifiers

PMID24532069
PMCPMC3993171
OpenAlexW2087888443

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.