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Related Concept Videos

Selectins01:25

Selectins

Cell adhesion is  an essential aspect of multicellularity. While stable cell interactions usually occur between cells of the same type, transient cell interactions occur between cells of different tissue types, such as between neutrophils and endothelial cells. Selectins are one class of cell adhesion molecules (CAMs) that bind carbohydrate ligands to form transient cell adhesion. They are rod-like proteins with a long extracellular part of variable length ending with the lectin domain, which...
Proteoglycans01:05

Proteoglycans

Glycans, a class of complex heterogeneous molecules, can be covalently attached to proteins to form glycosylated proteins that regulate various physiological and pathological processes. Glycosylated proteins or glycoproteins comprise N-linked and O-linked oligosaccharides. O-glycosylation is the most common type of protein glycosylation. Here, glycans attach to the oxygen atom of the hydroxyl groups of Serine or Threonine residues. O-linked glycosylation occurs later in protein processing,...

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Classification of lectins by pattern recognition using glyconanoparticles.

H Surangi N Jayawardena1, Xin Wang, Mingdi Yan

  • 1Department of Chemistry, University of Massachusetts , Lowell, MA 01854, United States.

Analytical Chemistry
|October 2, 2013
PubMed
Summary
This summary is machine-generated.

Carbohydrate-functionalized gold nanoparticles effectively distinguished plant-legume lectins. This glyconanoparticle approach, using localized surface plasmon resonance and linear discriminant analysis (LDA), offers a novel method for lectin identification.

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Area of Science:

  • Biochemistry
  • Nanotechnology
  • Analytical Chemistry

Background:

  • Lectins are proteins with diverse biological roles, crucial in plant-legume interactions.
  • Differentiating specific lectins is vital for research and diagnostics.
  • Current methods may lack specificity or efficiency.

Purpose of the Study:

  • To develop a method for differentiating plant-legume lectins.
  • To utilize carbohydrate-functionalized gold nanoparticles for lectin analysis.
  • To apply linear discriminant analysis (LDA) for statistical differentiation.

Main Methods:

  • Conjugating various carbohydrates onto gold nanoparticles to create glyconanoparticles.
  • Incubating glyconanoparticles with plant-legume lectins.
  • Measuring changes in localized surface plasmon resonance (LSPR) upon lectin binding.
  • Analyzing LSPR data using linear discriminant analysis (LDA).

Main Results:

  • Glyconanoparticles exhibited distinct LSPR changes upon binding with different lectins.
  • LDA successfully differentiated all tested plant-legume lectins based on LSPR data.
  • The method demonstrated high specificity in lectin identification.

Conclusions:

  • Carbohydrate-functionalized gold nanoparticles provide a sensitive platform for lectin differentiation.
  • The combination of LSPR and LDA offers a robust analytical strategy.
  • This approach has potential applications in biological research and diagnostics.