Evidence map›Paper›PMID 21909259›Full record

ArticlePLoS pathogens2011

Plasmodium protease ROM1 is important for proper formation of the parasitophorous vacuole.

Iset Medina Vera, Wandy L Beatty, Photini Sinnis, Kami Kim

Open access · goldAbstract read
In one paragraph

Article in PLoS pathogens, 2011. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 21 papers.

0numbers the graph read from it
0cells of the map it votes in
21citing papers in PubMed
5.0field-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

21 citing papers in PubMed, 32 citations in OpenAlex.

  1. Review
  2. Article
  3. Article
  4. Article
  5. TwoResearch square · 2025
    Article
  6. Review
  7. Article
  8. Sickle Cell Trait Modulates the Proteome and Phosphoproteome ofFrontiers in cellular and infection microbiology · 2021
    Article
  9. Article
  10. Review
  11. Article
  12. Article
  13. Article
  14. Article
  15. Review
  16. Review
  17. Torins are potent antimalarials that block replenishment of Plasmodium liver stage parasitophorous vacuole membrane proteins.Proceedings of the National Academy of Sciences of the United States of America · 2013
    Article
  18. Article
  19. Review
  20. 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

4 authors at 4 institutions in 1 country.

Iset Medina VeraDepartments of Medicine and of Microbiology and Immunology, Albert Einstein College of Medicine, Bronx, New York, United States of America.
Wandy L Beatty
Photini Sinnis
Kami Kim
Albert Einstein College of Medicine · USNew York University · USWashington University in St. Louis · USYeshiva University · US

Funding

TRAINING PROGRAM IN CELLULAR &MOLEC. BIOLOGY &GENETICST32GM007491 · NIGMS · YESHIVA UNIVERSITY · PI QUERY, CHARLES C · 1985 to 2021
$17.0M
Structure and Function of the Circumsporozoite ProteinR01AI056840 · NIAID · NEW YORK UNIVERSITY SCHOOL OF MEDICINE · PI SINNIS, PHOTINI · 2005 to 2014
$3.8M
SERINE PROTEINASES IN APICOMPLEXAN PARASITESR01AI046985 · NIAID · YESHIVA UNIVERSITY · PI KIM, KAMI · 2000 to 2009
$2.7M
NIAID NIH HHS R01 AI046985NIAID NIH HHS R01AI046985NIAID NIH HHS R01 AI056840NIGMS NIH HHS T32 GM007491NIGMS NIH HHS T32 GM07491
6 · The paper itself

Abstract

Apicomplexans are obligate intracellular parasites that invade host cells by an active process leading to the formation of a non-fusogenic parasitophorous vacuole (PV) where the parasite replicates within the host cell. The rhomboid family of proteases cleaves substrates within their transmembrane domains and has been implicated in the invasion process. Although its exact function is unknown, Plasmodium ROM1 is hypothesized to play a role during invasion based on its microneme localization and its ability to cleave essential invasion adhesins. Using the rodent malaria model, Plasmodium yoelii, we carried out detailed quantitative analysis of pyrom1 deficient parasites during the Plasmodium lifecycle. Pyrom1(-) parasites are attenuated during erythrocytic and hepatic stages but progress normally through the mosquito vector with normal counts of oocyst and salivary gland sporozoites. Pyrom1 steady state mRNA levels are upregulated 20-fold in salivary gland sporozoites compared to blood stages. We show that pyrom1(-) sporozoites are capable of gliding motility and traversing host cells normally. Wildtype and pyrom1(-) sporozoites do not differ in the rate of entry into Hepa1-6 hepatocytes. Within the first twelve hours of hepatic development, however, only 50% pyrom1(-) parasites have developed into exoerythrocytic forms. Immunofluorescence microscopy using the PVM marker UIS4 and transmission electron microscopy reveal that the PV of a significant fraction of pyrom1(-) parasites are morphologically aberrant shortly after invasion. We propose a novel function for PyROM1 as a protease that promotes proper PV modification to allow parasite development and replication in a suitable environment within the mammalian host.

Indexed as

AnimalsHepatocytesLiverMembrane ProteinsPlasmodium yoeliiProtozoan ProteinsSerine ProteasesSporozoitesVacuolesMembrane ProteinsProtozoan ProteinsSerine Proteases

Identifiers

PMID21909259
PMCPMC3164628
OpenAlexW1983248229

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.