title: RAG: RNA-As-Graphs web resource.
abstract: BACKGROUND
  The proliferation of structural and functional studies of RNA has revealed an increasing range of RNA's structural repertoire. Toward the objective of systematic cataloguing of RNA's structural repertoire, we have recently described the basis of a graphical approach for organizing RNA secondary structures, including existing and hypothetical motifs.
  
  
  METHODS
  We now present an RNA motif database based on graph theory, termed RAG for RNA-As-Graphs, to catalogue and rank all theoretically possible, including existing, candidate and hypothetical, RNA secondary motifs. The candidate motifs are predicted using a clustering algorithm that classifies RNA graphs into RNA-like and non-RNA groups. All RNA motifs are filed according to their graph vertex number (RNA length) and ranked by topological complexity.
  
  
  CONCLUSIONS
  RAG's quantitative cataloguing allows facile retrieval of all classes of RNA secondary motifs, assists identification of structural and functional properties of user-supplied RNA sequences, and helps stimulate the search for novel RNAs based on predicted candidate motifs.
authors.affiliation: Department of Chemistry, New York University, New York, NY 10003, USA. df448@nyu.edu
authors.forename: Daniela
authors.initials: D
authors.lastname: Fera
authors.forename: Namhee
authors.initials: N
authors.lastname: Kim
authors.forename: Nahum
authors.initials: N
authors.lastname: Shiffeldrim
authors.forename: Julie
authors.initials: J
authors.lastname: Zorn
authors.forename: Uri
authors.initials: U
authors.lastname: Laserson
authors.forename: Hin Hark
authors.initials: HH
authors.lastname: Gan
authors.forename: Tamar
authors.initials: T
authors.lastname: Schlick
mesh_terms: D019295:Computational Biology / Q000379:methods; D003196:Computer Graphics / Q000639:trends*; D030561:Databases, Nucleic Acid / Q000639:trends; D020407:Internet / Q000639:trends*; D012313:RNA / Q000737:chemistry*; D012984:Software; D012985:Software Design
chemical_list: D012313:RNA