Evidence map›Paper›PMID 19811502›Full record

ArticleCellular microbiology2010

Variable expression of surface-exposed polymorphic membrane proteins in in vitro-grown Chlamydia trachomatis.

Chun Tan, Ru-ching Hsia, Huizhong Shou, Jose A Carrasco, Roger G Rank, Patrik M Bavoil

Open access · bronzeAbstract read
In one paragraph

Article in Cellular microbiology, 2010. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 42 papers.

0numbers the graph read from it
0cells of the map it votes in
42citing papers in PubMed
2.8field-weighted citation impact, top 11% 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

42 citing papers in PubMed, 62 citations in OpenAlex.

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  11. Frontiers in microbiology · 2021
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  17. Does Active Oral Sex Contribute to Female Infertility?The Journal of infectious diseases · 2017
    Article
  18. Article
  19. Update on Chlamydia trachomatis Vaccinology.Clinical and vaccine immunology : CVI · 2017
    Review
  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 1 institution in 1 country.

Chun TanDepartment of Microbial Pathogenesis, University of Maryland Dental School, 650 West Baltimore Street, Baltimore, MD 21201, USA.
Ru-ching Hsia
Huizhong Shou
Jose A Carrasco
Roger G Rank
Patrik M Bavoil
University of Maryland, Baltimore · US

Funding

POLYMORPHIC MEMBRANE PROTEINS OF CHLAMYDIA TRACHOMATISR01AI051417 · NIAID · UNIVERSITY OF MARYLAND BALTIMORE · PI BAVOIL, PATRIK M · 2004 to 2010
$1.7M
NIAID NIH HHS R01 AI051417NIAID NIH HHS R01 AI51417
6 · The paper itself

Abstract

The hypothesized variable expression of polymorphic membrane proteins (PmpA-PmpI) in Chlamydia trachomatis-infected patients was tested by examination of the expression of each Pmp subtype in in vitro-grown C. trachomatis. A panel of monospecific polyclonal and monoclonal antibodies was used to demonstrate surface exposure of Pmps of each subtype by differential immunofluorescence (IF) with and without prior detergent permeabilization of paraformaldehyde-fixed inclusions and for selected Pmps by immunogold labelling. Although specific transcript was detected for each pmp gene late in development, IF experiments with Pmp subtype-specific antibodies reveal that a number of inclusions in a single infection do not express Pmps of a given subtype. Coexpression experiments suggest that pmp genes are shut off independently from one another in non-expressing inclusions, i.e. different inclusions are switched off for different Pmps. Overall, these studies establish the existence of an efficient shutoff mechanism independently affecting the expression of each member of the pmp gene family in in vitro-grown C. trachomatis. Like other paralogous gene families of bacterial pathogens, the pmp gene family of C. trachomatis may serve the critical dual function of a highly adaptable virulence factor also providing antigenic diversity in the face of the host adaptive immune response.

Indexed as

Gene Expression Regulation, BacterialBacterial ProteinsChlamydia trachomatisHeLa CellsHumansMembrane ProteinsMicroscopy, Electron, TransmissionReverse Transcriptase Polymerase Chain ReactionBacterial ProteinsMembrane Proteins

Identifiers

PMID19811502
PMCPMC3073146
OpenAlexW2069758132

What OpenQuestion holds

Textmetadata
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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.