MEPDB: Database of microExons in plants

Microexons, ≤ 51-nucleotide (nt), particularly ultra-short ones (1-15 nt), are challenging to identify due to their small size and frequent absence in genome annotations, which limits understanding of their biological roles. Using our developed pipeline, we identified 2398 small internal microexons across 10 diverse plant species, and most of them were not annotated in the reference genomes. These microexons are grouped into 45 conserved microexon clusters based on microexon-tags, which include...