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C-type lectin-like domains.

K Drickamer1

  • 1Glycobiology Institute, Department of Biochemistry, University of Oxford, South Parks Road, Oxford, OX1 3QU, UK. kd@glycob.ox.ac.uk

Current Opinion in Structural Biology
|October 6, 1999
PubMed
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C-type lectin-like domains, crucial for animal biology, show diverse structures and functions in binding calcium and sugars. Their varied assembly into dimers and trimers influences how they interact with ligands.

Area of Science:

  • Biochemistry
  • Structural Biology
  • Molecular Biology

Background:

  • C-type lectin-like domains are vital protein modules in animals, often binding calcium and sugars.
  • These domains are essential for various biological processes, acting as prototypes for related protein families.

Purpose of the Study:

  • To compare recent structures of C-type lectin-like domains.
  • To understand the diversity in their modular fold, especially in calcium and sugar-binding regions.
  • To investigate how structural variations relate to physiological function and ligand binding.

Main Methods:

  • Comparative structural analysis of C-type lectin-like domains.
  • Examination of structural data to identify variations in the modular fold.
  • Analysis of domain association interfaces and ligand-binding site orientations.

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Main Results:

  • Significant diversity exists in the modular fold of C-type lectin-like domains.
  • Structural variations are evident in regions responsible for calcium and sugar binding.
  • Observed diversity in folding correlates with physiological roles and ligand interactions.
  • These domains form dimers and trimers through various surfaces, affecting ligand-binding site presentation.

Conclusions:

  • The structural plasticity of C-type lectin-like domains allows for diverse functional adaptations.
  • Understanding these structural variations is key to elucidating their roles in biological recognition.
  • The assembly and orientation of ligand-binding sites are influenced by domain association, impacting molecular interactions.