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

Crystal structure and mutational analysis of a perlecan- binding fragment of nidogen-1.

Nidogen, an invariant component of basement membranes, is a multifunctional protein that interacts with most other major basement membrane proteins. Here, we report the crystal structure of the mouse nidogen-1 G2 fragment, which contains binding sites for collagen IV and perlecan. The structure is composed of an EGF-like domain and an 11-stranded beta-barrel with a central helix. The beta-barrel domain has unexpected similarity to green fluorescent protein. A large surface patch on the beta-barrel is strikingly conserved in all metazoan nidogens. Site-directed mutagenesis demonstrates that the conserved residues are involved in perlecan binding.[1]


  1. Crystal structure and mutational analysis of a perlecan-binding fragment of nidogen-1. Hopf, M., Göhring, W., Ries, A., Timpl, R., Hohenester, E. Nat. Struct. Biol. (2001) [Pubmed]
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