Solution structure of the link module: a hyaluronan-binding domain involved in extracellular matrix stability and cell migration.

Link modules are hyaluronan-binding domains found in proteins involved in the assembly of extracellular matrix, cell adhesion, and migration. The solution structure of the Link module from human TSG-6 was determined and found to consist of two alpha helices and two antiparallel beta sheets arranged around a large hydrophobic core. ...
This defines the consensus fold for the Link module superfamily, which includes CD44, cartilage link protein, and aggrecan. The TSG-6 Link module was shown to interact with hyaluronan, and a putative binding surface was identified on the structure. A structural database search revealed close similarity between the Link module and the C-type lectin domain, with the predicted hyaluronan-binding site at an analogous position to the carbohydrate-binding pocket in E-selectin.
Mesh Terms:
Amino Acid Sequence, Binding Sites, Carbohydrate Metabolism, Cell Adhesion Molecules, Cell Movement, E-Selectin, Extracellular Matrix, Humans, Hyaluronic Acid, Magnetic Resonance Spectroscopy, Models, Molecular, Molecular Sequence Data, Protein Binding, Protein Folding, Protein Structure, Secondary, Sequence Homology, Amino Acid, Solutions
Cell
Date: Sep. 06, 1996
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