Evidence map›Paper›PMID 8282715›Full record

ArticleJournal of bacteriology1994

The PII protein in the cyanobacterium Synechococcus sp. strain PCC 7942 is modified by serine phosphorylation and signals the cellular N-status.

K Forchhammer, N Tandeau de Marsac

Abstract read
In one paragraph

Article in Journal of bacteriology, 1994. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 58 papers.

0numbers the graph read from it
0cells of the map it votes in
58citing papers in PubMed
–field-weighted citation impact
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

58 citing papers in PubMed.

  1. From pond to platform: howJournal of bacteriology · 2026
    Review
  2. Native metabolomics identifies pteridines as CutA ligands and modulators of copper binding.Proceedings of the National Academy of Sciences of the United States of America · 2025
    Article
  3. Review
  4. N-Acetyl-L-glutamate Kinase ofInternational journal of molecular sciences · 2023
    Article
  5. Review
  6. MarineMicrobiology spectrum · 2022
    Article
  7. Article
  8. Review
  9. Review
  10. Article
  11. Article
  12. Genome Wide Phosphoproteome Analysis ofFrontiers in microbiology · 2019
    Article
  13. Article
  14. Article
  15. The PFrontiers in molecular biosciences · 2018
    Review
  16. Article
  17. Article
  18. Article
  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

2 authors.

K ForchhammerDépartement de Biochimie et Génétique Moléculaire, Institut Pasteur, Paris, France.
N Tandeau de Marsac

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

The glnB gene product (PII protein) from Synechococcus sp. has previously been identified among 32P-labeled proteins, and its modification state has been observed to depend on both the nitrogen source and the spectral light quality (N. F. Tsinoremas, A. M. Castets, M. A. Harrison, J. F. Allen, and N. Tandeau de Marsac, Proc. Natl. Acad. Sci. USA 88:4565-4569, 1991). As shown in this study, modification of the PII protein primarily responds to the N-status of the cell, and its light-dependent variations are are mediated through nitrate metabolism. Modification of the PII protein results in the appearance of three isomeric forms with increasing negative charge. Unlike its homolog counterparts characterized so far, PII in Synechococcus sp. is modified by phosphorylation on a serine residue, which represents a unique kind of protein modification in bacterial nitrogen signalling pathways.

Indexed as

Protein Processing, Post-TranslationalSignal TransductionAmino Acid SequenceBacterial ProteinsBase SequenceCyanobacteriaDose-Response Relationship, DrugLightMolecular Sequence DataPhosphorylationPhosphoserinePII Nitrogen Regulatory ProteinsQuaternary Ammonium CompoundsRecombinant ProteinsSerineBacterial ProteinsPhosphoserinePIID regulatory protein, BacteriaPII Nitrogen Regulatory ProteinsQuaternary Ammonium CompoundsRecombinant ProteinsSerine

Identifiers

PMID8282715
PMCPMC205017

What OpenQuestion holds

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Read underepoch 390

Registered trials

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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.