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    Mol Cell. 2000 Jul;6(1):183-9.

    Crystal structure of human survivin reveals a bow tie-shaped dimer with two unusual alpha-helical extensions.

    Chantalat L, Skoufias DA, Kleman JP, Jung B, Dideberg O, Margolis RL.

    Laboratoire de Cristallographie Macromoléculaire, Institut de Biologie Structurale Jean-Pierre Ebel, CEA-CNRS, Grenoble, France.

    Survivin is a mitotic spindle-associated protein involved in linking mitotic spindle function to activation of apoptosis in mammalian cells. The structure of the full-length human survivin has been determined by X-ray crystallography to 2.7 A. Strikingly, the structure forms a very unusual bow tie-shaped dimer. It does not dimerize through a C-terminal coiled-coil, contrary to sequence analysis prediction. The C-terminal helices contain hydrophobic clusters with the potential for protein-protein interactions. The unusual shape and dimensions of survivin suggest it serves an adaptor function through its alpha-helical extensions.

    PMID: 10949039 [PubMed - indexed for MEDLINE]

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