Evidence map›Paper›PMID 9362066›Full record

ArticleMolecular biology of the cell1997

Galectin-4 and small intestinal brush border enzymes form clusters.

E M Danielsen, B van Deurs

Open access · greenAbstract read
In one paragraph

Article in Molecular biology of the cell, 1997. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 32 papers.

0numbers the graph read from it
0cells of the map it votes in
32citing papers in PubMed
0.7field-weighted citation impact, top 31% 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

32 citing papers in PubMed, 96 citations in OpenAlex.

  1. Review
  2. Galectin-4 potentiates CD8+ T cell immunity by enhancing MHC-I expression on dendritic cells.Molecular therapy : the journal of the American Society of Gene Therapy · 2025
    Article
  3. Article
  4. Article
  5. Article
  6. Article
  7. Review
  8. Article
  9. Article
  10. Review
  11. Review
  12. Article
  13. Article
  14. Galectins in epithelial functions.Tissue barriers · 2014
    Review
  15. Article
  16. Article
  17. Article
  18. Review
  19. Role of N-glycosylation in trafficking of apical membrane proteins in epithelia.American journal of physiology. Renal physiology · 2009
    Review
  20. Immunohistochemical localization of six galectin subtypes in the mouse digestive tract.The journal of histochemistry and cytochemistry : official journal of the Histochemistry Society · 2009
    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

2 authors at 2 institutions in 2 countries.

E M DanielsenDepartment of Medical Biochemistry and Genetics, Panum Institute, University of Copenhagen, Denmark.
B van Deurs
Pediatrics and Genetics · USUniversity of Copenhagen · DK

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Detergent-insoluble complexes prepared from pig small intestine are highly enriched in several transmembrane brush border enzymes including aminopeptidase N and sucrase-isomaltase, indicating that they reside in a glycolipid-rich environment in vivo. In the present work galectin-4, an animal lectin lacking a N-terminal signal peptide for membrane translocation, was discovered in these complexes as well, and in gradient centrifugation brush border enzymes and galectin-4 formed distinct soluble high molecular weight clusters. Immunoperoxidase cytochemistry and immunogold electron microscopy showed that galectin-4 is indeed an intestinal brush border protein; we also localized galectin-4 throughout the cell, mainly associated with membraneous structures, including small vesicles, and to the rootlets of microvillar actin filaments. This was confirmed by subcellular fractionation, showing about half the amount of galectin-4 to be in the microvillar fraction, the rest being associated with insoluble intracellular structures. A direct association between the lectin and aminopeptidase N was evidenced by a colocalization along microvilli in double immunogold labeling and by the ability of an antibody to galectin-4 to coimmunoprecipitate aminopeptidase N and sucrase-isomaltase. Furthermore, galectin-4 was released from microvillar, right-side-out vesicles as well as from mucosal explants by a brief wash with 100 mM lactose, confirming its extracellular localization. Galectin-4 is therefore secreted by a nonclassical pathway, and the brush border enzymes represent a novel class of natural ligands for a member of the galectin family. Newly synthesized galectin-4 is rapidly "trapped" by association with intracellular structures prior to its apical secretion, but once externalized, association with brush border enzymes prevents it from being released from the enterocyte into the intestinal lumen.

Indexed as

Amino Acid SequenceAnimalsCD13 AntigensGalectin 4HemagglutininsIntestine, SmallLactoseMicrovilliMolecular Sequence DataMolecular WeightOrgan SpecificitySucrase-Isomaltase ComplexSwineCD13 AntigensGalectin 4HemagglutininsLactoseSucrase-Isomaltase Complex

Identifiers

PMID9362066
PMCPMC25705
OpenAlexW1977747278

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.