500nt

Accepted lncRNA properties, and practices for their identification and naming, are evolving, but lncRNAs generally exhibit the following features (Mattick and Rinn, 2015): (1) Lengths are 200nt with a median size of ~500nt—generally smaller than mRNAs, although some exceed 100 kb; 98% are spliced, with 80% having 2–4 exons, and the . superfun77 . amd 5000 series