Structural determinants of coiled coil mechanics
نویسندگان
چکیده
منابع مشابه
Structural plasticity of helical nanotubes based on coiled-coil assemblies.
Numerous instances can be seen in evolution in which protein quaternary structures have diverged while the sequences of the building blocks have remained fairly conserved. However, the path through which such divergence has taken place is usually not known. We have designed two synthetic 29-residue α-helical peptides, based on the coiled-coil structural motif, that spontaneously self-assemble i...
متن کاملAn Undecided Coiled Coil
Leucine zippers are oligomerization domains used in a wide range of proteins. Their structure is based on a highly conserved heptad repeat sequence in which two key positions are occupied by leucines. The leucine zipper of the cell cycle-regulated Nek2 kinase is important for its dimerization and activation. However, the sequence of this leucine zipper is most unusual in that leucines occupy on...
متن کاملA seven-helix coiled coil.
Coiled-coil proteins contain a characteristic seven-residue sequence repeat whose positions are designated a to g. The interacting surface between alpha-helices in a classical coiled coil is formed by interspersing nonpolar side chains at the a and d positions with hydrophilic residues at the flanking e and g positions. To explore how the chemical nature of these core amino acids dictates the o...
متن کاملSolving coiled-coil protein structures
The successful approach to solving crystal structures of coiled-coil proteins with the program AMPLE is discussed.
متن کاملKinking the coiled coil--negatively charged residues at the coiled-coil interface.
The coiled coil is one of the most common protein-structure motifs. It is believed to be adopted by 3-5% of all amino acids in proteins. It comprises two or more alpha-helical chains wrapped around one another. The sequences of most coiled coils are characterized by a seven-residue (heptad) repeat, denoted (abcdefg)(n). Residues at the a and d positions define the helical interface (core) and a...
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ژورنال
عنوان ژورنال: Physical Chemistry Chemical Physics
سال: 2019
ISSN: 1463-9076,1463-9084
DOI: 10.1039/c9cp00665f