Evidence map›Paper›PMID 12438378›Full record

ArticleInfection and immunity2002

Cryptosporidium parvum genes containing thrombospondin type 1 domains.

Mingqi Deng, Thomas J Templeton, Nicole R London, Carrey Bauer, Alison A Schroeder, Mitchell S Abrahamsen

Open access · greenAbstract read
In one paragraph

Article in Infection and immunity, 2002. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 28 papers.

0numbers the graph read from it
0cells of the map it votes in
28citing papers in PubMed
3.8field-weighted citation impact, top 7% 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

28 citing papers in PubMed, 71 citations in OpenAlex.

  1. Frontiers in veterinary science · 2026
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  8. Identification and Characterization ofMicrobiology spectrum · 2021
    Article
  9. Article
  10. Article
  11. Discovery of New Microneme Proteins inFrontiers in veterinary science · 2021
    Article
  12. Article
  13. Article
  14. Article
  15. Identification of invasion proteins of Cryptosporidium parvum.World journal of microbiology & biotechnology · 2015
    Article
  16. Article
  17. Evolution of apicomplexan secretory organelles.International journal for parasitology · 2012
    Review
  18. Article
  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

6 authors at 2 institutions in 1 country.

Mingqi DengDepartment of Veterinary PathoBiology, University of Minnesota, St. Paul 55108, USA.
Thomas J Templeton
Nicole R London
Carrey Bauer
Alison A Schroeder
Mitchell S Abrahamsen
Cornell University · USUniversity of Minnesota · US

Funding

CRYPTOSPORIDIUM PARVUM GENOME SEQUENCING PROJECT (MINN)U01AI046397 · NIAID · UNIVERSITY OF MINNESOTA TWIN CITIES · PI ABRAHAMSEN, MITCHELL S · 2000 to 2002
$2.2M
GENE EXPRESSION CRYTOSPORIDUM-INFECTED HOST CELLSR29AI035479 · NIAID · UNIVERSITY OF MINNESOTA TWIN CITIES · PI ABRAHAMSEN, MITCHELL S · 1994 to 1998
–
NIAID NIH HHS AI35479NIAID NIH HHS AI46397
6 · The paper itself

Abstract

Cryptosporidium parvum is recognized as an enteropathogen of great worldwide medical and veterinary importance, yet understanding of its pathogenesis has been hampered in part by limited knowledge of the invasion machinery of this parasite. Recently, genes containing thrombospondin type 1 (TSP1) domains have been identified in several genera of apicomplexans, including thrombospondin-related adhesive proteins (TRAPs) that have been implicated as key molecules for parasite motility and adhesion onto host cell surfaces. Previously, a large-scale random survey of the C. parvum genome conducted in our laboratory revealed the presence of multiple genomic DNA sequences with a high degree of similarity to known apicomplexan TRAP genes. In the present study, TBLASTN screening of available C. parvum genomic sequences by using TSP1 domains as queries identified a total of 12 genes possessing TSP1-like domains. All genes have putative signal peptide sequences, one or more TSP1-like domains, plus additional extracellular protein modules such as Kringle, epidermal growth factor, and Apple domains. Two genes, putative paralogs CpTSP8 and CpTSP9, contain predicted introns near their amino termini, which were verified by comparing PCR products from cDNA versus genomic DNA templates. Reverse transcription-PCR analysis of transcript levels reveals that C. parvum TSP genes were developmentally regulated with distinct patterns of expression during in vitro infection. TRAPC1, CpTSP3, and CpTSP11 were expressed at high levels during both early and late stages of infection, whereas CpTSP2, CpTSP5, CpTSP6, CpTSP8, and CpTSP9 were maximally expressed during the late stages of infection. Only CpTSP4 was highly expressed solely at an early stage of infection.

Indexed as

Genome, ProtozoanAmino Acid SequenceAnimalsBase SequenceCell LineComputational BiologyCryptosporidium parvumGene Expression Regulation, DevelopmentalHumansMolecular Sequence DataProtozoan ProteinsSequence AlignmentSequence Analysis, DNAThrombospondin 1ThrombospondinsProtozoan ProteinsThrombospondin 1thrombospondin-related adhesive protein, protozoanThrombospondins

Identifiers

PMID12438378
PMCPMC132954
OpenAlexW2152625338

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.