title: Homomorphous hexameric helicases: tales from the ring cycle.
abstract: Low-resolution structures have now been determined for several hexameric ring proteins, members of a large superfamily that includes helicases and, probably, a range of DNA-binding motors. A common symmetry and mode of DNA-binding may emerge.
authors.affiliation: Department of Cell Biology and Neuroanatomy, University of Minnesota Medical School, Minneapolis 55455, USA. egelman%egel1@vx.cis.umn.edu
authors.forename: E H
authors.initials: EH
authors.lastname: Egelman
mesh_terms: D004265:DNA Helicases / Q000737:chemistry* / Q000378:metabolism; D008958:Models, Molecular; D011487:Protein Conformation; D020365:RNA Helicases; D012316:RNA Nucleotidyltransferases / Q000737:chemistry* / Q000378:metabolism
chemical_list: D012316:RNA Nucleotidyltransferases; D004265:DNA Helicases; D020365:RNA Helicases