Evidence map›Paper›PMID 15968077›Full record

ArticleJournal of bacteriology2005

Architecture and adhesive activity of the Haemophilus influenzae Hsf adhesin.

Shane E Cotter, Hye-Jeong Yeo, Twyla Juehne, Joseph W St Geme

Open access · greenAbstract readComparative Study
In one paragraph

Article in Journal of bacteriology, 2005. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 29 papers.

0numbers the graph read from it
0cells of the map it votes in
29citing papers in PubMed
2.9field-weighted citation impact, top 10% 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

29 citing papers in PubMed, 51 citations in OpenAlex.

  1. Journal of bacteriology · 2026
    Review
  2. Article
  3. Article
  4. Article
  5. Article
  6. The crystal structure of PD1, a Haemophilus surface fibril domain.Acta crystallographica. Section F, Structural biology communications · 2017
    Article
  7. Article
  8. Article
  9. Article
  10. Article
  11. Article
  12. Article
  13. Type V secretion: mechanism(s) of autotransport through the bacterial outer membrane.Philosophical transactions of the Royal Society of London. Series B, Biological sciences · 2012
    Review
  14. Crystallization and X-ray diffraction analysis of a novel surface-adhesin protein: protein E from Haemophilus influenzae.Acta crystallographica. Section F, Structural biology and crystallization communications · 2012
    Article
  15. Article
  16. Article
  17. Structure and function of the Haemophilus influenzae autotransporters.Frontiers in cellular and infection microbiology · 2011
    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

4 authors at 1 institution in 1 country.

Shane E CotterEdward Mallinckrodt Department of Pediatrics, Washington University School of Medicine, 660 S. Euclid Ave., St. Louis, Missouri 63110, USA.
Hye-Jeong Yeo
Twyla Juehne
Joseph W St Geme
Mallinckrodt (United States) · US

Funding

DEVELOPMENTAL CARDIOLOGY AND PULMONARY TRAINING PROGRAMT32HL007873 · NHLBI · WASHINGTON UNIVERSITY · PI MECHAM, ROBERT P. · 1998 to 2012
$3.6M
BIOLOGY OF H INFLUENZAE HIA AND HSF ADHESINSR01AI044167 · NIAID · WASHINGTON UNIVERSITY · PI ST. GEME, JOSEPH W. · 1999 to 2008
$2.5M
NHLBI NIH HHS T32 HL007873NHLBI NIH HHS T32-HL07873NIAID NIH HHS R01 AI044167NIAID NIH HHS R01-AI44167
6 · The paper itself

Abstract

Haemophilus influenzae type b is an important cause of meningitis and other serious invasive diseases and initiates infection by colonizing the upper respiratory tract. Among the major adhesins in H. influenzae type b is a nonpilus protein called Hsf, a large protein that forms fiber-like structures on the bacterial surface and shares significant sequence similarity with the nontypeable H. influenzae Hia autotransporter. In the present study, we characterized the structure and adhesive activity of Hsf. Analysis of the predicted amino acid sequence of Hsf revealed three regions with high-level homology to the HiaBD1 and HiaBD2 binding domains in Hia. Based on examination of glutathione S-transferase fusion proteins corresponding to these regions, two of the three had adhesive activity and one was nonadhesive in assays with cultured epithelial cells. Structural modeling demonstrated that only the two regions with adhesive activity harbored an acidic binding pocket like the binding pocket identified in the crystal structure of HiaBD1. Consistent with these results, disruption of the acidic binding pockets in the adhesive regions eliminated adhesive activity. These studies advance our understanding of the architecture of Hsf and the family of trimeric autotransporters and provide insight into the structural determinants of H. influenzae type b adherence.

Indexed as

Adhesins, BacterialAmino Acid SequenceBacterial AdhesionCell LineEpithelial CellsHaemophilus influenzae type bHumansModels, MolecularMolecular Sequence DataProtein Structure, TertiarySequence AlignmentAdhesins, BacterialHsf protein, bacteria

Identifiers

PMID15968077
PMCPMC1151757
OpenAlexW2102231104

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.