FitEM2EM--tools for low resolution study of macromolecular assembly and dynamics.

ABSTRACT: Studies of the structure and dynamics of macromolecular assemblies often involve comparison of low resolution models obtained using different techniques such as electron microscopy or atomic force microscopy. We present new computational tools for comparing (matching) and docking of low resolution structures, based on shape complementarity. The matched or docked objects are represented by three dimensional grids where the value of each grid point depends on its position with regard to the interior, surface or exterior of the object. The grids are correlated using fast Fourier transformations producing either matches of related objects or docking models depending on the details of the grid representations. The procedures incorporate thickening and smoothing of the surfaces of the objects wh

SUBMITTER: Frankenstein Z 

PROVIDER: S-EPMC2572833 | biostudies-literature | 2008

REPOSITORIES: biostudies-literature