Evidence map›Paper›PMID 18697833›Full record

ArticleJournal of cell science2008

Arginine deiminase has multiple regulatory roles in the biology of Giardia lamblia.

Maria Carolina Touz, Andrea Silvana Rópolo, Maria Romina Rivero, Cecilia Veronica Vranych, John Thomas Conrad, Staffan Gunnar Svard, Theodore Elliott Nash

Open access · greenAbstract read
In one paragraph

Article in Journal of cell science, 2008. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 44 papers.

0numbers the graph read from it
0cells of the map it votes in
44citing papers in PubMed
4.6field-weighted citation impact, top 5% 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

44 citing papers in PubMed, 95 citations in OpenAlex.

  1. Review
  2. Article
  3. Article
  4. Article
  5. Article
  6. Article
  7. The Giardial Arginine Deiminase Participates inInternational journal of molecular sciences · 2022
    Article
  8. The virtues and vices of protein citrullination.Royal Society open science · 2022
    Review
  9. Article
  10. Article
  11. Review
  12. Article
  13. Review
  14. The compact genome ofMicrobial genomics · 2020
    Article
  15. Article
  16. 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

7 authors at 5 institutions in 3 countries.

Maria Carolina TouzInstituto de Investigación Medica Mercedes y Martín Ferreyra, INIMEC - CONICET, Friuli 2434, Cordoba, Argentina. ctouz@immf.uncor.edu
Andrea Silvana Rópolo
Maria Romina Rivero
Cecilia Veronica Vranych
John Thomas Conrad
Staffan Gunnar Svard
Theodore Elliott Nash
Consejo Nacional de Investigaciones Científicas y Técnicas · ARInstituto de Investigación Médica Mercedes y Martín Ferreyra · ARNational Institute of Allergy and Infectious Diseases · USNational Institutes of Health · USUppsala University · SE

Funding

Studies of Gastrointestinal Parasitic DiseasesZIAAI000161 · NIAID · NATIONAL INSTITUTE OF ALLERGY AND INFECTIOUS DISEASES · PI NASH, THEODORE · 2009 to 2016
$1.8M
Studies of Gastrointestinal Parasitic DiseasesZ01AI000161 · NIAID · NIAID EXTRAMURAL ACTIVITIES · PI NASH, THEODORE · 1985 to 2008
$73k
Intramural NIH HHS Z01 AI000161
6 · The paper itself

Abstract

The protozoan parasite Giardia lamblia uses arginine deiminase (ADI) to produce energy from free L-arginine under anaerobic conditions. In this work, we demonstrate that, in addition to its known role as a metabolic enzyme, it also functions as a peptidylarginine deiminase, converting protein-bound arginine into citrulline. G. lamblia ADI specifically binds to and citrullinates the arginine in the conserved CRGKA tail of variant-specific surface proteins (VSPs), affecting both antigenic switching and antibody-mediated cell death. During encystation, ADI translocates from the cytoplasm to the nuclei and appears to play a regulatory role in the expression of encystation-specific genes. ADI is also sumoylated, which might modulate its activity. Our findings reveal a dual role played by ADI and define novel regulatory pathways used by Giardia for survival.

Indexed as

AnimalsAntigenic VariationAntigens, ProtozoanCell DeathCell DifferentiationCell NucleusCitrullineGiardia lambliaHydrolasesModels, BiologicalProtein-Arginine DeiminasesProtein BindingProtein Processing, Post-TranslationalProtein TransportProtozoan ProteinsAntigens, ProtozoanCitrullineHydrolasesProtein-Arginine DeiminasesProtozoan Proteinsvariant surface protein H7, Giardia lamblia

Identifiers

PMID18697833
PMCPMC2631563
OpenAlexW2038975069

What OpenQuestion holds

Textmetadata
LicenceTDM
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.