Evidence map›Paper›PMID 17213308›Full record

ArticleProceedings of the National Academy of Sciences of the United States of America2007

A blasticidin S-resistant Plasmodium falciparum mutant with a defective plasmodial surface anion channel.

David A Hill, Ajay D Pillai, Fatima Nawaz, Karen Hayton, Lanxuan Doan, Godfrey Lisk, Sanjay A Desai

Abstract read
In one paragraph

Article in Proceedings of the National Academy of Sciences of the United States of America, 2007. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 46 papers.

0numbers the graph read from it
0cells of the map it votes in
46citing 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

46 citing papers in PubMed.

  1. Article
  2. Article
  3. Overexpression inFrontiers in cellular and infection microbiology · 2025
    Article
  4. Article
  5. Review
  6. Article
  7. Review
  8. Unique Properties of Nutrient Channels onPathogens (Basel, Switzerland) · 2023
    Review
  9. Review
  10. Review
  11. Review
  12. Article
  13. Article
  14. Article
  15. Article
  16. NK cells inhibiteLife · 2018
    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.

David A HillLaboratory of Malaria and Vector Research, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Bethesda, MD 20852, USA.
Ajay D Pillai
Fatima Nawaz
Karen Hayton
Lanxuan Doan
Godfrey Lisk
Sanjay A Desai

Funding

The Plasmodial Surface Anion Channel And Malaria Parasite Nutrient AcquisitionZIAAI000882 · NIAID · NATIONAL INSTITUTE OF ALLERGY AND INFECTIOUS DISEASES · PI DESAI, SANJAY A · 2009 to 2025
$20.5M
The Plasmodial Surface Anion Channel And Malaria Parasite Nutrient AcquisitionZ01AI000882 · NIAID · NIAID EXTRAMURAL ACTIVITIES · PI DESAI, SANJAY A · 2001 to 2008
$1.5M
Intramural NIH HHS
6 · The paper itself

Abstract

Erythrocytes infected with malaria parasites exhibit marked increases in permeability to organic and inorganic solutes. The plasmodial surface anion channel (PSAC), an unusual voltage-dependent ion channel induced on the host membrane after infection, may play a central role in these permeability changes. Here, we identified a functional PSAC mutant through in vitro selection with blasticidin S. Resistance to blasticidin S was generated during culture and correlated with significant reductions in permeability to multiple solutes, consistent with uptake via a common pathway. Single channel recordings revealed marked changes in PSAC gating with the addition of a subconductance state not present in wild-type channels. The channel's selectivity profile and pharmacology also were significantly altered. Eventual loss of the mutant phenotype upon removal of selective pressure and slower growth of mutant parasites suggest that PSAC serves an important role in intracellular parasite survival. These findings provide solid evidence for the uptake of diverse solutes via PSAC and implicate one or more parasite genes in expression of this channel.

Indexed as

Drug ResistanceAnimalsCell Membrane PermeabilityElectrophysiologyIon ChannelsNucleosidesPatch-Clamp TechniquesPlasmodium falciparumTime Factorsblasticidin SIon ChannelsNucleosidessurface anion channel protein, Plasmodium falciparum

Identifiers

PMID17213308
PMCPMC1783364

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.