Tension-induced binding of semiflexible biopolymers
نویسندگان
چکیده
منابع مشابه
Semiflexible Biopolymers in Bundled Arrangements
Bundles and networks of semiflexible biopolymers are key elements in cells, lending them mechanical integrity while also enabling dynamic functions. Networks have been the subject of many studies, revealing a variety of fundamental characteristics often determined via bulk measurements. Although bundles are equally important in biological systems, they have garnered much less scientific attenti...
متن کاملSemiflexible chains under tension
A functional integral formalism is used to derive the extension of a stiff chain subject to an external force. The force versus extension curves are calculated using a mean-field approach in which the hard constraint u(s)51 is replaced by a global constraint ^u(s)&51 where u(s) is the tangent vector describing the chain and s is the arclength. The theory quantitatively reproduces the experiment...
متن کاملSequence-dependent effects on the properties of semiflexible biopolymers.
Using a path integral technique, we show exactly that for a semiflexible biopolymer in constant extension ensemble, no matter how long the polymer and how large the external force, the effects of short-range correlations in the sequence-dependent spontaneous curvatures and torsions can be incorporated into a model with well-defined mean spontaneous curvature and torsion as well as a renormalize...
متن کاملStraightening of Thermal Fluctuations in Semiflexible Polymers by Applied Tension.
We investigate the propagation of a suddenly applied tension along a thermally excited semiflexible polymer using analytical approximations, scaling arguments, and numerical simulation. This problem is inherently nonlinear. We find subdiffusive propagation with a dynamical exponent of 1/4. By generalizing the internal elasticity, we show that tense strings exhibit qualitatively different tensio...
متن کاملBinding of photosensitizing dyes with some biopolymers.
To obtain some information of the biological action of Kankohso 101dinicotinate and Kankohso 301-nicotinate, observations were made on the binding mode of these substances with protein, chondroitin sulfate and nucleic acids and the following results were obtained; 1. Kankohso 10 I-dinicotinate binds reversively with bovine serum albumin or serum r-globulin, resulting in metachromasia. By bindin...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: New Journal of Physics
سال: 2014
ISSN: 1367-2630
DOI: 10.1088/1367-2630/16/11/113037