Evidence map›Paper›PMID 15557630›Full record

ArticleInfection and immunity2004

Polymorphisms in the Chlamydia trachomatis cytotoxin locus associated with ocular and genital isolates.

John H Carlson, Scott Hughes, Daniel Hogan, Gordon Cieplak, Daniel E Sturdevant, Grant McClarty, Harlan D Caldwell, Robert J Belland

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 66 papers.

0numbers the graph read from it
0cells of the map it votes in
66citing papers in PubMed
4.0field-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

66 citing papers in PubMed, 121 citations in OpenAlex.

  1. Article
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  4. Genomic profiling and characterization of ocularMicrobiology resource announcements · 2024
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  8. Molecular pathogenesis ofFrontiers in cellular and infection microbiology · 2023
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  9. Genome organization and genomics inFrontiers in cellular and infection microbiology · 2023
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  10. The role of tryptophan inFrontiers in cellular and infection microbiology · 2022
    Review
  11. Review
  12. Review
  13. Ammonia generation by tryptophan synthase drives a key genetic difference between genital and ocularProceedings of the National Academy of Sciences of the United States of America · 2019
    Article
  14. Transcriptional Expression of theMicroorganisms · 2019
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  17. Characterization of theInfection and immunity · 2018
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  19. Genetic Transformation of aFrontiers in cellular and infection microbiology · 2018
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  20. Article

6 more citing papers are in PubMed but not listed here.

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

8 authors at 3 institutions in 3 countries.

John H CarlsonCollege of Medicine, Department of Molecular Science, University of Tennessee, Memphis Health Science Center, 858 Madison Avenue, Memphis, TN 38163, USA.
Scott Hughes
Daniel Hogan
Gordon Cieplak
Daniel E Sturdevant
Grant McClarty
Harlan D Caldwell
Robert J Belland
Institute of Cellular and Intracellular Symbiosis · RUNational Institutes of Health · USUniversity of Manitoba · CA

Funding

Pathogensis of Chlamydial InfectionZIAAI000845 · NIAID · NATIONAL INSTITUTE OF ALLERGY AND INFECTIOUS DISEASES · PI CALDWELL, HARLAN D · 2009 to 2022
$14.8M
Chlamydial Immunity and Vaccine DevelopmentZIAAI000672 · NIAID · NATIONAL INSTITUTE OF ALLERGY AND INFECTIOUS DISEASES · PI CALDWELL, HARLAN D · 2009 to 2016
$6.8M
PATHOGENOMICS OF CHLAMYDIAL INFECTIONZ01AI000845 · NIAID · NIAID EXTRAMURAL ACTIVITIES · PI CALDWELL, HARLAN D · 1999 to 2008
$1.6M
MUCOSAL IMMUNITY TO CHLAMYDIAL INFECTIONZ01AI000672 · NIAID · NIAID EXTRAMURAL ACTIVITIES · PI CALDWELL, HARLAN D · 1993 to 2008
$1.4M
6 · The paper itself

Abstract

Chlamydia trachomatis is a strict human pathogen producing infections that cause medically important chronic inflammatory diseases, such as blinding trachoma and tubal factor infertility. Isolates exist as serotypes that fall into distinct biologic and pathological groups corresponding to differences in infection tissue tropism and invasion properties. Paradoxically, genome sequencing of several diverse strains has revealed a remarkable level of genomic synteny, suggesting that minor genetic differences determine the pathogen host- and tissue-specific infection characteristics. To better understand the genetic basis of chlamydial pathobiologic diversity, we performed comparative DNA-DNA microarray genomic hybridizations with all 15 C. trachomatis serovariants. We found there are few major genetic differences among the 15 serovars. An exception was the cytotoxin locus located in the plasticity zone, a region that exhibited significant polymorphisms among serovars. We therefore sequenced this region from all 15 serovars. The cytotoxin gene was interrupted by extensive mutations and deletions among the different serovars; however, three basic open reading frame motifs were discovered that correlated with noninvasive oculotropic, urogenitotropic, and invasive serovars. Of interest, only noninvasive genitotropic serovars possessed an intact N-terminal portion of the putative toxin gene. This region contains the UDP-glucose binding domain and the glycosyltransferase domain required for enzymatic activity of the clostridial toxin homologs, suggesting a role in urogenital infection or pathogenesis.

Indexed as

Chromosome MappingPolymorphism, GeneticBacterial ToxinsBase SequenceChlamydia trachomatisCytotoxinsEyeGenitaliaGenome, BacterialHumansMolecular Sequence DataOligonucleotide Array Sequence AnalysisOpen Reading FramesBacterial ToxinsCytotoxins

Identifiers

PMID15557630
PMCPMC529170
OpenAlexW2103499212

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.