Evidence map›Paper›PMID 8240257›Full record

ArticleThe Biochemical journal1993

Characterization of glycoinositol phospholipids in the amastigote stage of the protozoan parasite Leishmania major.

P Schneider, J P Rosat, A Ransijn, M A Ferguson, M J McConville

Open access · bronzeAbstract read
In one paragraph

Article in The Biochemical journal, 1993. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 23 papers.

0numbers the graph read from it
0cells of the map it votes in
23citing papers in PubMed
4.2field-weighted citation impact, top 6% 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

23 citing papers in PubMed, 52 citations in OpenAlex.

  1. Free GPIs and Comparison of GPI Structures Among Species.International journal of molecular sciences · 2025
    Review
  2. Review
  3. Review
  4. Extracellular Vesicles in Trypanosomatids: Host Cell Communication.Frontiers in cellular and infection microbiology · 2020
    Review
  5. Article
  6. Article
  7. Article
  8. Sphingolipids in parasitic protozoa.Advances in experimental medicine and biology · 2010
    Review
  9. Toll-like receptors and leishmaniasis.Infection and immunity · 2008
    Review
  10. Article
  11. Article
  12. Article
  13. Secretory pathway of trypanosomatid parasites.Microbiology and molecular biology reviews : MMBR · 2002
    Review
  14. Article
  15. The surface glycoconjugates of trypanosomatid parasites.Philosophical transactions of the Royal Society of London. Series B, Biological sciences · 1997
    Review
  16. Article
  17. Article
  18. The glycoinositol-phospholipids of Phytomonas.The Biochemical journal · 1995
    Article
  19. Protein trafficking in kinetoplastid protozoa.Microbiological reviews · 1995
    Review
  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

5 authors at 2 institutions in 2 countries.

P SchneiderDepartment of Biochemistry, University of Dundee, UK.
J P Rosat
A Ransijn
M A Ferguson
M J McConville
University of Dundee · GBUniversity of Lausanne · CH

Funding

Wellcome Trust
6 · The paper itself

Abstract

The major macromolecules on the surface of the parasitic protozoan Leishmania major appear to be down-regulated during transformation of the parasite from an insect-dwelling promastigote stage to an intracellular amastigote stage that invades mammalian macrophages. In contrast, the major parasite glycolipids, the glycoinositol phospholipids (GIPLs), are shown here to be expressed at near-constant levels in both developmental stages. The structures of the GIPLs from tissue-derived amastigotes have been determined by h.p.l.c. analysis of the deaminated and reduced glycan head groups, and by chemical and enzymic sequencing. The deduced structures appear to form a complete biosynthetic series, ranging from Man alpha 1-4GlcN-phosphatidylinositol (PI) to Gal alpha 1-3Galf beta 1-3Man alpha 1-3Man alpha 1-4GlcN-PI (GIPL-2). A small proportion of GIPL-2 was further extended by addition of a Gal residue in either alpha 1-6 or beta 1-3 linkage. From g.c.-m.s. analysis and mild base treatment, all the GIPLs were shown to contain either alkylacylglycerol or lyso-alkylglycerol lipid moieties, where the alkyl chains were predominantly C18:0, with lower levels of C20:0, C22:0 and C24:0. L. major amastigotes also contained at least two PI-specific phospholipase C-resistant glycolipids which are absent from promastigotes. These neutral glycolipids were resistant to both mild acid and mild base hydrolysis, contained terminal beta-Gal residues and were not lost during extensive purification of amastigotes from host cell membranes. It is likely that these glycolipids are glycosphingolipids acquired from the mammalian host. The GIPL profile of L. major amastigotes is compared with the profiles found in L. major promastigotes and L. donovani amastigotes.

Indexed as

AnimalsCarbohydrate SequenceChromatography, Thin LayerGlycolipidsLeishmania majorMolecular Sequence DataPhosphatidylinositol Diacylglycerol-LyasePhosphatidylinositolsPhosphoric Diester HydrolasesGlycolipidsPhosphatidylinositol Diacylglycerol-LyasePhosphatidylinositolsPhosphoric Diester Hydrolases

Identifiers

PMID8240257
PMCPMC1134916
OpenAlexW2300399382

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.