Evidence map›Paper›PMID 11158611›Full record

ArticleProceedings of the National Academy of Sciences of the United States of America2001

CD8+ T cells recognize an inclusion membrane-associated protein from the vacuolar pathogen Chlamydia trachomatis.

S P Fling, R A Sutherland, L N Steele, B Hess, S E D'Orazio, J Maisonneuve, M F Lampe, P Probst, M N Starnbach

Open access · hybridAbstract read
In one paragraph

Article in Proceedings of the National Academy of Sciences of the United States of America, 2001. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 62 papers.

0numbers the graph read from it
0cells of the map it votes in
62citing papers in PubMed
6.7field-weighted citation impact, top 2% 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

62 citing papers in PubMed, 132 citations in OpenAlex.

  1. Inclusion Membrane Proteins ofMicroorganisms · 2026
    Review
  2. CD8iScience · 2026
    Article
  3. UnveilingiScience · 2025
    Article
  4. Article
  5. Article
  6. Application of aJournal of bacteriology · 2021
    Article
  7. T cell responses to Chlamydia.Pathogens and disease · 2021
    Review
  8. Frontiers in immunology · 2021
    Article
  9. The multiple functions of the numerousMicrobial cell (Graz, Austria) · 2019
    Review
  10. Article
  11. Article
  12. The Loss of Expression of a Single Type 3 Effector (CT622) Strongly ReducesFrontiers in cellular and infection microbiology · 2018
    Article
  13. Update on Chlamydia trachomatis Vaccinology.Clinical and vaccine immunology : CVI · 2017
    Review
  14. Article
  15. Review
  16. Article
  17. Article
  18. Article
  19. Conserved type III secretion system exerts important roles in Chlamydia trachomatis.International journal of clinical and experimental pathology · 2014
    Review
  20. Review

2 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

9 authors at 2 institutions in 1 country.

S P FlingCorixa Corporation, Seattle, WA 98104, USA. sfling@corixa.com
R A Sutherland
L N Steele
B Hess
S E D'Orazio
J Maisonneuve
M F Lampe
P Probst
M N Starnbach
University of Washington · USCorixa Corporation · US

Funding

Cytotoxic T Cell Mediated Immunity to ChlamydiaR01AI039558 · NIAID · HARVARD UNIVERSITY (MEDICAL SCHOOL) · PI STARNBACH, MICHAEL N · 2001 to 2025
$15.6M
University of Washington STI-TM Cooperative Research CtrU19AI031448 · NIAID · UNIVERSITY OF WASHINGTON · PI HOLMES, KING K. · 1995 to 2010
$15.2M
CYTOTOXIC T CELL MEDIATED IMMUNITY TO CHLAMYDIAR29AI039558 · NIAID · HARVARD UNIVERSITY (MEDICAL SCHOOL) · PI STARNBACH, MICHAEL N · 1996 to 2000
$135k
UNIVERSITY OF WASHINGTON STD COOPERATIVE RESEARCH CENTERU01AI031448 · NIAID · UNIVERSITY OF WASHINGTON · PI HOLMES, KING KENNARD · 1991 to 1994
–
NIAID NIH HHS AI31448NIAID NIH HHS AI39558NIAID NIH HHS R01 AI039558NIAID NIH HHS R29 AI039558NIAID NIH HHS U19 AI031448
6 · The paper itself

Abstract

During infection with Chlamydia trachomatis, CD8(+) T cells are primed, even though the bacteria remain confined to a host cell vacuole throughout their developmental cycle. Because CD8(+) T cells recognize antigens processed from cytosolic proteins, the Chlamydia antigens recognized by these CD8(+) T cells very likely have access to the host cell cytoplasm during infection. The identity of these C. trachomatis proteins has remained elusive, even though their localization suggests they may play important roles in the biology of the organism. Here we use a retroviral expression system to identify Cap1, a 31-kDa protein from C. trachomatis recognized by protective CD8(+) T cells. Cap1 contains no strong homology to any known protein. Immunofluorescence microscopy by using Cap1-specific antibody demonstrates that this protein is localized to the vacuolar membrane. Cap1 is virtually identical among the human C. trachomatis serovars, suggesting that a vaccine incorporating Cap1 might enable the vaccine to protect against all C. trachomatis serovars. The identification of proteins such as Cap1 that associate with the inclusion membrane will be required to fully understand the interaction of C. trachomatis with its host cell.

Indexed as

AnimalsBacterial ProteinsBase SequenceCD8-Positive T-LymphocytesCell LineCells, CulturedChlamydia trachomatisFemaleGene LibraryImmunohistochemistryMembrane ProteinsMiceMice, Inbred BALB CMolecular Sequence DataOligodeoxyribonucleotidesPolymerase Chain ReactionBacterial ProteinsCap1 protein, Chlamydia trachomatisMembrane ProteinsOligodeoxyribonucleotides

Identifiers

PMID11158611
PMCPMC14725
OpenAlexW2167407828

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.