RCSB PDB - 2ZOU: Crystal structure of human F-spondin reeler domain (fragment 2) (original) (raw)
Structure of the F-spondin reeler domain reveals a unique beta-sandwich fold with a deformable disulfide-bonded loop
[Nagae, M.](/search?q=citation.rcsb%5Fauthors:Nagae, M.), [Nishikawa, K.](/search?q=citation.rcsb%5Fauthors:Nishikawa, K.), [Yasui, N.](/search?q=citation.rcsb%5Fauthors:Yasui, N.), [Yamasaki, M.](/search?q=citation.rcsb%5Fauthors:Yamasaki, M.), [Nogi, T.](/search?q=citation.rcsb%5Fauthors:Nogi, T.), [Takagi, J.](/search?q=citation.rcsb%5Fauthors:Takagi, J.)
(2008) Acta Crystallogr D Biol Crystallogr 64: 1138-1145
PubMed: 19020352 Search on PubMed
PubMed Abstract:
F-spondin is a secreted and extracellular matrix-attached protein that has been implicated in axonal pathfinding during neural development as well as in vascular remodelling in adult tissues. F-spondin is composed of a reeler, a spondin and six thrombospondin type 1 repeat domains. The reeler domain shares homology with the amino-terminal domain of reelin, a large secreted glycoprotein that guides migrating neurons during cortical development. Crystal structures of the F-spondin reeler domain were determined at 1.45 and 2.70 A resolution. The structure revealed a nine-stranded antiparallel beta-sandwich fold similar to the immunoglobulin or fibronectin type III domains, but with a unique extra beta-hairpin. Moreover, an amino-terminal extension which is anchored at its beginning via a conserved disulfide bond loosely packs against one face of the beta-sandwich, making a major contribution to the surface features of the domain. Structural comparison among the different molecules contained in two different crystals reveals an unusual conformational plasticity of the amino-terminal loop, suggesting its role in molecular interactions.
Organizational Affiliation:
- Laboratory of Protein Synthesis and Expression, Institute for Protein Research, Osaka University, 3-2 Yamadaoka, Suita, Osaka 565-0871, Japan.