Evidence map›Paper›PMID 16239533›Full record

ArticleInfection and immunity2005

Characterization of two novel cryptococcal mannoproteins recognized by immune sera.

Carmelo Biondo, Luciano Messina, Mauro Bombaci, Giuseppe Mancuso, Angelina Midiri, Concetta Beninati, Valentina Cusumano, Elisabetta Gerace, Salvatore Papasergi, Giuseppe Teti

Open access · greenAbstract read
In one paragraph

Article in Infection and immunity, 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
1.0field-weighted citation impact, top 22% 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, 47 citations in OpenAlex.

  1. Article
  2. Acetylation and accessibility ofCell surface (Amsterdam, Netherlands) · 2026
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  3. Review
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  8. Macrophage Mediated Immunomodulation DuringFrontiers in cellular and infection microbiology · 2022
    Review
  9. Article
  10. Article
  11. Article
  12. Review
  13. Review
  14. Article
  15. Article
  16. Peeling the onion: the outer layers of Cryptococcus neoformans.Memorias do Instituto Oswaldo Cruz · 2018
    Review
  17. Article
  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

10 authors at 2 institutions in 1 country.

Carmelo BiondoDepartment of Pathology and Experimental Microbiology, University of Messina, Messina, Italy.
Luciano Messina
Mauro Bombaci
Giuseppe Mancuso
Angelina Midiri
Concetta Beninati
Valentina Cusumano
Elisabetta Gerace
Salvatore Papasergi
Giuseppe Teti
University of Messina · ITOspedale D. Cotugno · IT

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Host defenses against the encapsulated yeast Cryptococcus neoformans involve both humoral and cell-mediated immunity. Mannoproteins (MPs) are a heterogeneous class of immunodominant glycoproteins which have been only incompletely characterized. In this study, we report on the molecular features of two novel MPs that are recognized by serum antibodies during cryptococcosis. After fractionation of extracellular cryptococcal products, MPs reacted more strongly than other components with sera from C. neoformans-infected AIDS patients. Further fractionation and Western blot analysis of MPs evidenced the presence of highly reactive bands with molecular masses of 250, 125, 115, and 84 kDa. The 115- and 84-kDa bands contained significant amounts of N-linked oligosaccharides, as shown by decreased molecular mass after peptide-N-glycosidase F treatment. N-terminal amino acid sequences of the two bands were used to search C. neoformans nucleotide databases. Homologous genomic sequences were used to synthesize DNA probes and isolate cDNA clones containing the full-length genes, which were designated MP84 and MP115. Both genes showed the presence of a serine/threonine-rich region, a potential site for heavy glycosylation. MP84 and MP115 showed homology with, respectively, polysaccharide deacetylases and carboxylesterases from other organisms. Recombinant, deglycosylated proteins expressed in Escherichia coli still reacted with sera from patients, albeit more weakly than natural MPs, indicating that at least some of the reactive epitopes were retained in the recombinant forms. In conclusion, we identified two novel MPs that are important targets of antibody responses during cryptococcosis. These data may be useful to devise alternative immunity-based strategies to control the disease.

Indexed as

Amino Acid SequenceAnimalsAntibodies, FungalAntigens, FungalCloning, MolecularCryptococcosisCryptococcus neoformansFemaleFungal ProteinsHumansImmune SeraMembrane GlycoproteinsMiceMice, Inbred BALB CMolecular Sequence DataSequence Homology, Amino AcidAntibodies, FungalAntigens, FungalFungal ProteinsImmune SeramannoproteinsMembrane Glycoproteins

Identifiers

PMID16239533
PMCPMC1273869
OpenAlexW2139939530

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.