Evidence map›Paper›PMID 14742544›Full record

ArticleInfection and immunity2004

The Cryptosporidium oocyst wall protein is a member of a multigene family and has a homolog in Toxoplasma.

Thomas J Templeton, Cheryl A Lancto, Vladimir Vigdorovich, Chang Liu, Nicole R London, Kelly Z Hadsall, Mitchell S Abrahamsen

Open access · greenAbstract read
In one paragraph

Article in Infection and immunity, 2004. 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
3.2field-weighted citation impact, top 8% 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, 103 citations in OpenAlex.

  1. Review
  2. Article
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  6. UnveilingFrontiers in cellular and infection microbiology · 2024
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  7. First microscopic and molecular identification ofFrontiers in veterinary science · 2024
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  9. Proteomic Analysis of FractionatedInternational journal of molecular sciences · 2023
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  12. Review
  13. Identification and Characterization ofMicrobiology spectrum · 2021
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  16. Article
  17. Article
  18. Frontiers in veterinary science · 2020
    Review
  19. Comparisons of the Sexual Cycles for the Coccidian ParasitesFrontiers in cellular and infection microbiology · 2020
    Review
  20. Structure, composition, and roles of theCell surface (Amsterdam, Netherlands) · 2019
    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

7 authors at 2 institutions in 1 country.

Thomas J TempletonDepartment of Microbiology and Immunology, Weill Medical College of Cornell University, New York, New York 10021, USA.
Cheryl A Lancto
Vladimir Vigdorovich
Chang Liu
Nicole R London
Kelly Z Hadsall
Mitchell S Abrahamsen
University of Minnesota · USCornell University · US

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Coccidian parasites are transmitted via a fecal oocyst stage that is exceptionally resistant to environmental stress and harsh chemical treatments, which allows parasites to stably persist outside a host. Because of its oocyst durability Cryptosporidium parvum is a significant water- and food-borne pathogen of humans, as well as animals of agricultural importance. To date, only one apicomplexan oocyst membrane protein has been identified, Cryptosporidium oocyst wall protein 1 (COWP1). COWP1 has a highly cysteine-rich periodicity due to arrays of two apicomplexan-specific motifs, designated the type I and type II domains. In this study, exhaustive BLAST screening of a complete C. parvum genome sequence database resulted in identification of eight additional genes encoding similar arrays of cysteine-rich type I and/or type II domains. Transcript expression analysis revealed that all COWP genes are abundantly expressed at a time when developing oocysts are observed, roughly 48 to 72 h after inoculation of in vitro cultures. A monoclonal antibody recognizing COWP8 specifically localized to the C. parvum oocyst wall, supporting the hypothesis that multiple COWPs play a role in the oocyst wall structure. BLAST screening of the Toxoplasma gondii genome sequence database resulted in identification of a gene encoding at least one COWP homolog (TgOWP1), and this multiexon sequence information was used to isolate a full-length cDNA. Exhaustive screening of Plasmodium sp. genome sequence databases by using COWP genes as BLAST queries failed to detect similar proteins in PLASMODIUM: We therefore propose that the COWP family of proteins have a structural role in apicomplexan species that produce durable shed cysts capable of surviving environmental stress.

Indexed as

Multigene FamilyAmino Acid SequenceAnimalsCryptosporidium parvumMolecular Sequence DataProtozoan ProteinsSequence AlignmentToxoplasmaoocyst wall protein, CryptosporidiumProtozoan Proteins

Identifiers

PMID14742544
PMCPMC321576
OpenAlexW2143404468

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.