ArticleInfection and immunity2003
Biochemical and functional analyses of the Mip protein: influence of the N-terminal half and of peptidylprolyl isomerase activity on the virulence of Legionella pneumophila.
Article in Infection and immunity, 2003. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 26 papers.
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.
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.
Who cites it
26 citing papers in PubMed, 77 citations in OpenAlex.
- Genomic analysis of Massilia antarctica subsp. insulae subsp. nov., a violacein- and aminochelin-producing bacterium isolated from Horseshoe Island, Antarctica.Antonie van Leeuwenhoek · 2025Article
- Macrophage infectivity potentiator protein, a peptidyl prolyl cis-trans isomerase, essential for Coxiella burnetii growth and pathogenesis.PLoS pathogens · 2023Article
- Protein sociology of ProA, Mip and other secreted virulence factors at theFrontiers in cellular and infection microbiology · 2023Review
- Concept about the Virulence Factor ofMicroorganisms · 2022Review
- Legionella pneumophila PPIase Mip Interacts with the Bacterial Proteins SspB, Lpc2061, and FlaA and Promotes Flagellation.Infection and immunity · 2022Article
- Biochemical and functional characterization ofFrontiers in microbiology · 2022Article
- Structural characterization of PaFkbA: A periplasmic chaperone fromComputational and structural biotechnology journal · 2021Article
- Peptidyl-Prolyl-Infection and immunity · 2019Article
- Proline substitutions in a Mip-like peptidyl-prolylBiochimie open · 2015Article
- Novel Cycloheximide Derivatives Targeting the Moonlighting Protein Mip Exhibit Specific Antimicrobial Activity Against Legionella pneumophila.Frontiers in bioengineering and biotechnology · 2015Article
- FipB, an essential virulence factor of Francisella tularensis subsp. tularensis, has dual roles in disulfide bond formation.Journal of bacteriology · 2014Article
- Microbial peptidyl-prolyl cis/trans isomerases (PPIases): virulence factors and potential alternative drug targets.Microbiology and molecular biology reviews : MMBR · 2014Review
- The Aeromonas salmonicida subsp. salmonicida exoproteome: global analysis, moonlighting proteins and putative antigens for vaccination against furunculosis.Proteome science · 2013Article
- Involvement of peptidylprolyl cis/trans isomerases in Enterococcus faecalis virulence.Infection and immunity · 2012Article
- Article
- A Burkholderia pseudomallei macrophage infectivity potentiator-like protein has rapamycin-inhibitable peptidylprolyl isomerase activity and pleiotropic effects on virulence.Infection and immunity · 2011Article
- The Neisseria meningitidis macrophage infectivity potentiator protein induces cross-strain serum bactericidal activity and is a potential serogroup B vaccine candidate.Infection and immunity · 2011Article
- Article
- Proteomic characterization of the whole secretome of Legionella pneumophila and functional analysis of outer membrane vesicles.Infection and immunity · 2008Article
- Solution structure of the Legionella pneumophila Mip-rapamycin complex.BMC structural biology · 2008Article
Corrections and comments
PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.
Authors and funding
10 authors at 3 institutions in 2 countries.
Funding
No grant is acknowledged in the PubMed record.
Abstract
The virulence factor Mip (macrophage infectivity potentiator) contributes to the intracellular survival of Legionella pneumophila, the causative agent of Legionnaires' disease. The protein consists of two domains that are connected via a very long alpha-helix (A. Riboldi-Tunnicliffe et al., Nat. Struct. Biol. 8:779-783, 2001). The fold of the C-terminal domain (residues 100 to 213) is closely related to human FK506-binding protein (FKBP12), and like FKBP12, Mip exhibits peptidylprolyl cis/trans isomerase (PPIase) activity. The alpha-helical N-terminal domain is responsible for the formation of very stable Mip homodimers. In order to determine the importance of the homodimeric state of Mip for its biochemical activities and for infectivity of Legionella, a truncated, monomeric Mip variant [Mip((77-213))] was overexpressed in Escherichia coli and characterized biochemically. In vitro isomerase activity assays revealed that the altered protein exhibits full isomerase activity towards peptide substrates. However, the deletion resulted in a dramatic loss in the efficiency of refolding of reduced and carboxy-methylated RNase T(1). By cis complementation of the Mip-negative mutant strain L. pneumophila JR32-2, we constructed the strain L. pneumophila JR32-2.4, which expresses an N-terminally truncated variant of Mip. Infection studies with these strains revealed that the N-terminal part and the dimerization of Mip but not its PPIase activity are necessary for full virulence in Acanthamoeba castellanii. Infection of guinea pigs showed that strains with dimerization-deficient Mip (JR32-2.4) or a very low PPIase activity (JR32-2.2) were significantly attenuated in the animal model. These results suggest a different role of the PPIase activity and the N-terminally mediated dimeric state of Mip in monocellular systems and during the infection of guinea pigs.
Indexed as
Identifiers
What OpenQuestion holds
Registered trials
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.