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Hoffmann, R. A wiki for the life sciences where authorship matters. Nature Genetics (2008)
 
 
 

X-ray crystal structure of the human galectin-3 carbohydrate recognition domain at 2.1-A resolution.

Galectins are a family of lectins which share similar carbohydrate recognition domains (CRDs) and affinity for small beta-galactosides, but which show significant differences in binding specificity for more complex glycoconjugates. We report here the x-ray crystal structure of the human galectin-3 CRD, in complex with lactose and N-acetyllactosamine, at 2.1-A resolution. This structure represents the first example of a CRD determined from a galectin which does not show the canonical 2-fold symmetric dimer organization. Comparison with the published structures of galectins-1 and -2 provides an explanation for the differences in carbohydrate-binding specificity shown by galectin-3, and for the fact that it fails to form dimers by analogous CRD-CRD interactions.[1]

References

  1. X-ray crystal structure of the human galectin-3 carbohydrate recognition domain at 2.1-A resolution. Seetharaman, J., Kanigsberg, A., Slaaby, R., Leffler, H., Barondes, S.H., Rini, J.M. J. Biol. Chem. (1998) [Pubmed]
 
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