PtRFdb: Plant tRNA-Derived Fragments Database

The transfer RNA-derived fragments or tRFs represent a distinct class of small non-coding RNAs, and have been detected in evolutionarily divergent organisms. The role of tRFs in human cancers and infectious diseases as well as in gene regulation has been well established in diverse organisms. However, in plants, there is a need to further consolidate the tRF research by identification and characterization of tRFs because this domain is still unexplored across the plant kingdom. This chapter discusses about PtRFdb (www.nipgr.res.in/PtRFdb), a web-based repository harbouring the valuable information related to transfer RNA derived fragments (tRFs) in 10 different plant species. This database is believed to be beneficial for molecular biologists in facilitating future survey and characterization of tRFs across the plant kingdom.