HBVRegDB-formatted results of the blastn and tblastx query (AM282986) against all viral sequences from RefSeq. Blast results from HBVRegDB are grouped in different classes based on match scores. This figure displays the results from Class 3 (scores between 50–79). Notably, parameters used in HBVRegDB are adjusted to allow matching of short sequences (-W 2 -G 8 -E 2). For example, the tblastx of HBVRegDB returns the hit of the short motif (YMDD) of the HBV P protein to the YMDD of the P protein from Human T-lymphotropic virus, Simian T-lymphotropic virus 1 and Woolly monkey sarcoma virus (boxed).