Evidence map›Paper›PMID 25724650›Full record

ArticleThe Journal of biological chemistry2015

From Protease to Decarboxylase: THE MOLECULAR METAMORPHOSIS OF PHOSPHATIDYLSERINE DECARBOXYLASE.

Jae-Yeon Choi, Manoj T Duraisingh, Matthias Marti, Choukri Ben Mamoun, Dennis R Voelker

Open access · hybridAbstract read
In one paragraph

Article in The Journal of biological chemistry, 2015. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 25 papers.

0numbers the graph read from it
0cells of the map it votes in
25citing papers in PubMed
2.2field-weighted citation impact, top 12% 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

25 citing papers in PubMed, 39 citations in OpenAlex.

  1. Molecular remodelling ofJournal of medical microbiology · 2026
    Article
  2. Article
  3. Article
  4. Review
  5. Article
  6. Article
  7. Article
  8. Review
  9. Article
  10. Review
  11. Article
  12. Article
  13. Article
  14. Proteolytic Control of Lipid Metabolism.ACS chemical biology · 2019
    Review
  15. Article
  16. Life science alliance · 2019
    Article
  17. Article
  18. 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

5 authors at 4 institutions in 1 country.

Jae-Yeon ChoiFrom the Department of Medicine, Basic Science Section, National Jewish Health, Denver, Colorado 80206.
Manoj T Duraisinghthe Department of Immunology and Infectious Diseases, Harvard School of Public Health, Boston, Massachusetts 02115.
Matthias Martithe Department of Immunology and Infectious Diseases, Harvard School of Public Health, Boston, Massachusetts 02115.
Choukri Ben Mamounthe Department of Internal Medicine, Section of Infectious Diseases, Yale School of Medicine, New Haven, Connecticut 06520, and.
Dennis R VoelkerFrom the Department of Medicine, Basic Science Section, National Jewish Health, Denver, Colorado 80206, voelkerd@njhealth.org.
Harvard University · USNational Jewish Health · USUniversity of Colorado Denver · USYale University · US

Funding

Function and Inhibition of Plasmodium Lipid DecarboxylasesR01AI097218 · NIAID · YALE UNIVERSITY · PI BEN MAMOUN, CHOUKRI · 2012 to 2016
$2.0M
Structure and Function of Eukaryotic Phosphatidylserine DecarboxylaseR01GM104485 · NIGMS · NATIONAL JEWISH HEALTH · PI VOELKER, DENNIS R. · 2013 to 2016
$1.2M
NIAID NIH HHS AI09486NIAID NIH HHS AI097218NIAID NIH HHS R01 AI097218NIGMS NIH HHS GM104485NIGMS NIH HHS R01 GM104485
6 · The paper itself

Abstract

Phosphatidylserine decarboxylase (PSDs) play a central role in the synthesis of phosphatidylethanolamine in numerous species of prokaryotes and eukaryotes. PSDs are unusual decarboxylase containing a pyruvoyl prosthetic group within the active site. The covalently attached pyruvoyl moiety is formed in a concerted reaction when the PSD proenzyme undergoes an endoproteolytic cleavage into a large β-subunit, and a smaller α-subunit, which harbors the prosthetic group at its N terminus. The mechanism of PSD proenzyme cleavage has long been unclear. Using a coupled in vitro transcription/translation system with the soluble Plasmodium knowlesi enzyme (PkPSD), we demonstrate that the post-translational processing is inhibited by the serine protease inhibitor, phenylmethylsulfonyl fluoride. Comparison of PSD sequences across multiple phyla reveals a uniquely conserved aspartic acid within an FFXRX6RX12PXD motif, two uniquely conserved histidine residues within a PXXYHXXHXP motif, and a uniquely conserved serine residue within a GS(S/T) motif, suggesting that PSDs belong to the D-H-S serine protease family. The function of the conserved D-H-S residues was probed using site-directed mutagenesis of PkPSD. The results from these mutagenesis experiments reveal that Asp-139, His-198, and Ser-308 are all essential for endoproteolytic processing of PkPSD, which occurs in cis. In addition, within the GS(S/T) motif found in all PSDs, the Gly-307 residue is also essential, but the Ser/Thr-309 is non-essential. These results define the mechanism whereby PSDs begin their biochemical existence as proteases that execute one autoendoproteolytic cleavage reaction to give rise to a mature PSD harboring a pyruvoyl prosthetic group.

Indexed as

ProteolysisAmino Acid MotifsCarboxy-LyasesPlasmodium knowlesiProtein Processing, Post-TranslationalProtozoan ProteinsSerine ProteasesStructure-Activity RelationshipCarboxy-Lyasesphosphatidylserine decarboxylaseProtozoan ProteinsSerine ProteasesAutoendoproteolysisMembranePhosphatidylserine DecarboxylasePhospholipidPlasmodiumProteasePyruvoyl-enzyme

Identifiers

PMID25724650
PMCPMC4409258
OpenAlexW2028978429

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.