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The VASP tetramerization domain is a right-handed coiled coil based on a 15-residue repeat.


ABSTRACT: The vasodilator-stimulated phosphoprotein (VASP) is a key regulator of actin dynamics. We have determined the 1.3-A resolution crystal structure of the 45-residue-long tetramerization domain (TD) from human VASP. This domain forms a right-handed alpha-helical coiled-coil structure with a similar degree of supercoiling as found in the widespread left-handed coiled coils with heptad repeats. The basis for the right-handed geometry of VASP TD is a 15-residue repeat in its amino acid sequence, which reveals a characteristic pattern of hydrophobic residues. Hydrophobic interactions and a network of salt bridges render VASP TD highly thermostable with a melting point of 120 degrees C.

SUBMITTER: Kuhnel K 

PROVIDER: S-EPMC535362 | biostudies-literature | 2004 Dec

REPOSITORIES: biostudies-literature

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The VASP tetramerization domain is a right-handed coiled coil based on a 15-residue repeat.

Kühnel Karin K   Jarchau Thomas T   Wolf Eva E   Schlichting Ilme I   Walter Ulrich U   Wittinghofer Alfred A   Strelkov Sergei V SV  

Proceedings of the National Academy of Sciences of the United States of America 20041129 49


The vasodilator-stimulated phosphoprotein (VASP) is a key regulator of actin dynamics. We have determined the 1.3-A resolution crystal structure of the 45-residue-long tetramerization domain (TD) from human VASP. This domain forms a right-handed alpha-helical coiled-coil structure with a similar degree of supercoiling as found in the widespread left-handed coiled coils with heptad repeats. The basis for the right-handed geometry of VASP TD is a 15-residue repeat in its amino acid sequence, which  ...[more]

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