tRFdabase:http://genome.bioch.virginia.edu/trfdb/

tRNAdb:http://trna.bioinf.uni-leipzig.de/DataOutput/

tRNADB-CE：http://trna.ie.niigata-u.ac.jp/cgi-bin/trnadb/index.cgi

.tRNA命名: http://www.genenames.org/cgi-bin/genefamilies/set/478