Evidence map›Paper›PMID 23255525›Full record

ArticleMicrobiologyOpen2013

Cell-free production of integral membrane aspartic acid proteases reveals zinc-dependent methyltransferase activity of the Pseudomonas aeruginosa prepilin peptidase PilD.

Khaled A Aly, Emily T Beebe, Chi H Chan, Michael A Goren, Carolina Sepúlveda, Shin-ichi Makino, Brian G Fox, Katrina T Forest

Open access · goldAbstract read
In one paragraph

Article in MicrobiologyOpen, 2013. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 18 papers.

0numbers the graph read from it
0cells of the map it votes in
18citing papers in PubMed
1.2field-weighted citation impact, top 23% 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

18 citing papers in PubMed, 27 citations in OpenAlex.

  1. Article
  2. Article
  3. Opsins are Phospholipid Scramblases in All Domains of Life.bioRxiv : the preprint server for biology · 2025
    Article
  4. Type IV pili ofEcoSal Plus · 2024
    Review
  5. Review
  6. Review
  7. Review
  8. Article
  9. Article
  10. Reconstitution of a minimal machinery capable of assembling periplasmic type IV pili.Proceedings of the National Academy of Sciences of the United States of America · 2017
    Article
  11. Tracking Proteins Secreted by Bacteria: What's in the Toolbox?Frontiers in cellular and infection microbiology · 2017
    Review
  12. Article
  13. Article
  14. Editorial.FEMS microbiology reviews · 2015
    Article
  15. Review
  16. Article
  17. Review
  18. Review
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

8 authors at 1 institution in 1 country.

Khaled A AlyDepartment of Bacteriology, University of Wisconsin-Madison, Madison, WI 53706, USA.
Emily T Beebe
Chi H Chan
Michael A Goren
Carolina Sepúlveda
Shin-ichi Makino
Brian G Fox
Katrina T Forest
University of Wisconsin–Madison · US

Funding

The Transmembrane Protein CenterU54GM094584 · NIGMS · UNIVERSITY OF WISCONSIN-MADISON · PI FOX, BRIAN G · 2010 to 2014
$4.6M
Request for a supplement for equipmentR37GM040313 · NIGMS · UNIVERSITY OF WISCONSIN-MADISON · PI ESCALANTE, JORGE C · 2010 to 2018
$3.5M
TYPE IV PILI: STRUCTURAL ASPECTS OF THE ASSEMBLY MECHANIR01GM059721 · NIGMS · UNIVERSITY OF WISCONSIN-MADISON · PI FOREST, KATRINA T · 2000 to 2011
$2.3M
NIGMS NIH HHS 1U54 GM094584NIGMS NIH HHS GM59721NIGMS NIH HHS R01 GM059721NIGMS NIH HHS R37 GM040313NIGMS NIH HHS R37-GM40313NIGMS NIH HHS U54 GM094584
6 · The paper itself

Abstract

Integral membrane aspartic acid proteases are receiving growing recognition for their fundamental roles in cellular physiology of eukaryotes and prokaryotes, and may be medically important pharmaceutical targets. The Gram-negative Pseudomonas aeruginosa PilD and the archaeal Methanococcus voltae FlaK were synthesized in the presence of unilamellar liposomes in a cell-free translation system. Cosynthesis of PilD with its full-length substrate, PilA, or of FlaK with its full-length substrate, FlaB2, led to complete cleavage of the substrate signal peptides. Scaled-up synthesis of PilD, followed by solubilization in dodecyl-β-d-maltoside and chromatography, led to a pure enzyme that retained both of its known biochemical activities: cleavage of the PilA signal peptide and S-adenosyl methionine-dependent methylation of the mature pilin. X-ray fluorescence scans show for the first time that PilD is a zinc-binding protein. Zinc is required for the N-terminal methylation of the mature pilin, but not for signal peptide cleavage. Taken together, our work identifies the P. aeruginosa prepilin peptidase PilD as a zinc-dependent N-methyltransferase and provides a new platform for large-scale synthesis of PilD and other integral membrane proteases important for basic microbial physiology and virulence.

Indexed as

Amino Acid SequenceAspartic Acid ProteasesBacterial ProteinsCell-Free SystemCoenzymesEndopeptidasesFimbriae ProteinsMethylationMethyltransferasesModels, MolecularMolecular Sequence DataProtein Processing, Post-TranslationalPseudomonas aeruginosaZincAspartic Acid ProteasesBacterial ProteinsCoenzymesEndopeptidasesFimbriae ProteinsMethyltransferasesprepilin peptidase protein, BacteriaZinc

Identifiers

PMID23255525
PMCPMC3584216
OpenAlexW1972808240

What OpenQuestion holds

Textmetadata
LicenceCC BY
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.