<p>Diagram on the top is a visual illustration of each class of lncRNAs relative to nearest protein-coding gene(s) based on genomic position and direction of transcripts. Bottom Fig in tabular format presents number of different classes of lncRNAs from each class. Numbers inside brackets following data source references indicate total number of that particular class of lncRNAs. Letters C, D, S, AS and U indicate number of convergent, divergent, sense, anti-sense and transcripts with unknown directionality, respectively.</p
