{ "id": "cond-mat/9905106", "version": "v1", "published": "1999-05-07T23:49:47.000Z", "updated": "1999-05-07T23:49:47.000Z", "title": "Random walks in the space of conformations of toy proteins", "authors": [ "Rose Du", "Alexander Yu. Grosberg", "Toyoichi Tanaka" ], "comment": "4 pages, 3 figures", "journal": "Phys. Rev. Lett., v. 84, n. 8, pp. 1828-1831, 2000.", "doi": "10.1103/PhysRevLett.84.1828", "categories": [ "cond-mat.dis-nn", "cond-mat.soft", "q-bio" ], "abstract": "Monte Carlo dynamics of the lattice 48 monomers toy protein is interpreted as a random walk in an abstract (discrete) space of conformations. To test the geometry of this space, we examine the return probability $P(T)$, which is the probability to find the polymer in the native state after $T$ Monte Carlo steps, provided that it starts from the native state at the initial moment. Comparing computational data with the theoretical expressions for $P(T)$ for random walks in a variety of different spaces, we show that conformational spaces of polymer loops may have non-trivial dimensions and exhibit negative curvature characteristic of Lobachevskii (hyperbolic) geometry.", "revisions": [ { "version": "v1", "updated": "1999-05-07T23:49:47.000Z" } ], "analyses": { "keywords": [ "random walk", "conformations", "monte carlo dynamics", "native state", "monte carlo steps" ], "tags": [ "journal article" ], "publication": { "publisher": "APS", "journal": "Phys. Rev. Lett." }, "note": { "typesetting": "TeX", "pages": 4, "language": "en", "license": "arXiv", "status": "editable" } } }