Ground-state properties of tubelike flexible polymers

Abstract

In this work we investigate structural properties of native states of a simple model for short flexible homopolymers, where the steric influence of monomeric side chains is effectively introduced by a thickness constraint. This geometric constraint is implemented through the concept of the global radius of curvature and affects the conformational topology of ground-state structures. A systematic analysis allows for a thickness-dependent classification of the dominant ground-state topologies. It turns out that helical structures, strands, rings, and coils are natural, intrinsic geometries of such tubelike objects.

References in corpus (9)

• Entropically Driven Helix Formation
• Freezing and Collapse of Flexible Polymers on Regular Lattices in Three Dimensions
• Surface effects in the crystallization process of elastic flexible polymers
• Helical structures from an isotropic homopolymer model
• Two-State Folding, Folding through Intermediates, and Metastability in a Minimalistic Hydrophobic-Polar Model for Proteins
• Helical Tubes in Crowded Environments
• Thickness-dependent secondary structure formation of tubelike polymers
• Kinetically driven helix formation during the homopolymer collapse process
• Thermodynamics of tubelike flexible polymers