Evidence map›Paper›PMID 22228733›Full record

ArticleJournal of bacteriology2012

Three-dimensional structures of pathogenic and saprophytic Leptospira species revealed by cryo-electron tomography.

Gianmarco Raddi, Dustin R Morado, Jie Yan, David A Haake, X Frank Yang, Jun Liu

Abstract readComparative Study
In one paragraph

Article in Journal of bacteriology, 2012. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 52 papers.

0numbers the graph read from it
0cells of the map it votes in
52citing papers in PubMed
3.6field-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

52 citing papers in PubMed, 87 citations in OpenAlex.

  1. Article
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  6. The ancient E-ring in bacterial flagellar motors.FEMS microbiology reviews · 2026
    Review
  7. In Situ Structural Analysis of Leptospira spp. by Electron Cryotomography.Methods in molecular biology (Clifton, N.J.) · 2026
    Article
  8. Leptospirosis.Nature reviews. Disease primers · 2025
    Review
  9. Article
  10. Article
  11. Article
  12. Article
  13. Article
  14. Host and Species-Specificities of Pattern Recognition Receptors Upon Infection WithFrontiers in cellular and infection microbiology · 2022
    Review
  15. Article
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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 4 institutions in 2 countries.

Gianmarco RaddiDepartment of Pathology and Laboratory Medicine, University of Texas Medical School at Houston, Houston, Texas, USA.
Dustin R Morado
Jie Yan
David A Haake
X Frank Yang
Jun Liu
The University of Texas at Austin · USIndiana University School of MedicineVA Greater Los Angeles Healthcare System · USZhejiang University · CN

Funding

Structure-Function Relationships in the Spirochetal Flagellar MotorR01AI087946 · NIAID · YALE UNIVERSITY · PI LIU, JUN · 2010 to 2025
$6.6M
Outer Membrane Proteins of Pathogenic Leptospira SpeciesR01AI034431 · NIAID · BRENTWOOD BIOMEDICAL RESEARCH INSTITUTE · PI GOMES-SOLECKI, MARIA, HAAKE, DAVID A · 2003 to 2015
$4.1M
NIAID NIH HHS 5R01AI034431NIAID NIH HHS R01 AI034431NIAID NIH HHS R01 AI087946NIAID NIH HHS R01AI087946
6 · The paper itself

Abstract

Leptospira interrogans is the primary causative agent of the most widespread zoonotic disease, leptospirosis. An in-depth structural characterization of L. interrogans is needed to understand its biology and pathogenesis. In this study, cryo-electron tomography (cryo-ET) was used to compare pathogenic and saprophytic species and examine the unique morphological features of this group of bacteria. Specifically, our study revealed a structural difference between the cell envelopes of L. interrogans and Leptospira biflexa involving variations in the lipopolysaccharide (LPS) layer. Through cryo-ET and subvolume averaging, we determined the first three-dimensional (3-D) structure of the flagellar motor of leptospira, with novel features in the flagellar C ring, export apparatus, and stator. Together with direct visualization of chemoreceptor arrays, DNA packing, periplasmic filaments, spherical cytoplasmic bodies, and a unique "cap" at the cell end, this report provides structural insights into these fascinating Leptospira species.

Indexed as

Cryoelectron MicroscopyElectron Microscope TomographyFlagellaImaging, Three-DimensionalLeptospiraMacromolecular SubstancesMacromolecular Substances

Identifiers

PMID22228733
PMCPMC3294836
OpenAlexW2126693505

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.