Crystal structure of the TSP-1 type 1 repeats: a novel layered fold and its biological implication.Tan, K., Duquette, M., Liu, J.H., Dong, Y., Zhang, R., Joachimiak, A., Lawler, J., Wang, J.H.
(2002) J Cell Biol 159: 373-382
- PubMed: 12391027
- DOI: https://doi.org/10.1083/jcb.200206062
- Primary Citation of Related Structures:
- PubMed Abstract:
Thrombospondin-1 (TSP-1) contains three type 1 repeats (TSRs), which mediate cell attachment, glycosaminoglycan binding, inhibition of angiogenesis, activation of TGFbeta, and inhibition of matrix metalloproteinases. The crystal structure of the TSRs reported in this article reveals a novel, antiparallel, three-stranded fold that consists of alternating stacked layers of tryptophan and arginine residues from respective strands, capped by disulfide bonds on each end. The front face of the TSR contains a right-handed spiral, positively charged groove that might be the "recognition" face, mediating interactions with various ligands. This is the first high-resolution crystal structure of a TSR domain that provides a prototypic architecture for structural and functional exploration of the diverse members of the TSR superfamily.
Dana-Farber Cancer Institute, Harvard Medical School, 44 Binney Street, Boston, MA 02115, USA.