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Gliadins bind to reticulin in a lectin-like manner
D J Unsworth1, J N Leonard, C M Hobday
1Department of Dermatology, St. Mary's Hospital, London, England.
Archives of Dermatological Research
|January 1, 1987
Summary
Gliadins bind to reticulin due to their lectin properties, interacting with sugars on glycoproteins. This interaction occurs in reticulin-rich areas and other sugar-expressing sites within tissue sections.
Area of Science:
- Biochemistry
- Immunology
- Glycobiology
Background:
- Gliadins are known to bind to reticulin in tissue sections.
- The molecular basis for this interaction has not been fully elucidated.
Purpose of the Study:
- To investigate the mechanism by which gliadins bind to reticulin.
- To determine if gliadin binding is mediated by lectin-carbohydrate interactions.
Main Methods:
- Immunofluorescence studies on tissue sections using gliadin antibodies.
- Staining with fluorescein-labeled lectins of known sugar specificities.
- Inhibition assays using specific sugars, such as alpha-D-mannose.
Main Results:
- Gliadin binding was observed in reticulin-rich areas and other sites.
- These binding sites were found to be rich in specific sugars.
- Alpha-D-mannose partially inhibited gliadin binding to tissue sections.
Conclusions:
- Gliadins exhibit lectin-like properties, binding to sugars on glycoproteins.
- This lectin activity explains the observed binding of gliadins to reticulin and other tissue components.