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SPARSE: Quadratic time simultaneous alignment and folding of RNAs without sequence-based heuristics

  • Sebastian Will
  • , Christina Schmiedl
  • , Milad Miladi
  • , Mathias Möhl
  • , Rolf Backofen

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

Abstract

Motivation: There is increasing evidence of pervasive transcription, resulting in hundreds of thousands of ncRNAs of unknown function. Standard computational analysis tasks for inferring functional annotations like clustering require fast and accurate RNA comparisons based on sequence and structure similarity. The gold standard for the latter is Sankoff's algorithm [3], which simultaneously aligns and folds RNAs. Because of its extreme time complexity of O(n6), numerous faster "Sankoff-style" approaches have been suggested. Several such approaches introduce heuristics based on sequence alignment, which compromises the alignment quality for RNAs with sequence identities below 60% [1]. Avoiding such heuristics, as e.g. in LocARNA [4], has been assumed to prohibit time complexities better than O(n 4), which strongly limits large-scale applications.

Original languageEnglish
Title of host publicationResearch in Computational Molecular Biology - 17th Annual International Conference, RECOMB 2013, Proceedings
Pages289-290
Number of pages2
DOIs
Publication statusPublished - 3 Apr 2013
Externally publishedYes
Event17th Annual International Conference on Research in Computational Molecular Biology, RECOMB 2013 - Beijing, China
Duration: 7 Apr 201310 Apr 2013

Publication series

NameLecture Notes in Computer Science (including subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics)
Volume7821 LNBI
ISSN (Print)0302-9743
ISSN (Electronic)1611-3349

Conference

Conference17th Annual International Conference on Research in Computational Molecular Biology, RECOMB 2013
Country/TerritoryChina
CityBeijing
Period7/04/1310/04/13

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