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Updated: Nov 25, 2025

Identification of RNAs Engaged in Direct RNA-RNA Interaction with a Long Non-Coding RNA
Published on: July 9, 2021
Classification of Long Noncoding RNAs by k-mer Content
Jessime M Kirk1,2,3,4, Daniel Sprague1,3,5,6, J Mauro Calabrese7,8,9,10
1Department of Pharmacology, University of North Carolina at Chapel Hill, Chapel Hill, NC, USA.
Abstract:
K-mer based comparisons have emerged as powerful complements to BLAST-like alignment algorithms, particularly when the sequences being compared lack direct evolutionary relationships. In this chapter, we describe methods to compare k-mer content between groups of long noncoding RNAs (lncRNAs), to identify communities of lncRNAs with related k-mer contents, to identify the enrichment of protein-binding motifs in lncRNAs, and to scan for domains of related k-mer contents in lncRNAs. Our step-by-step instructions are complemented by Python code deposited in Github. Though our chapter focuses on lncRNAs, the methods we describe could be applied to any set of nucleic acid sequences.
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