Table 1.

Special keywords and their corresponding classification for a RNA chain.

Keywords	Significance
UTR, EXON, INTRON	mRNA
CODON, ANTIOCODON, ACCEPTOR tRNA-fragment, A-site, P-site, E-site, tRNA X-MER (e.g., tRNA 30-MER)	tRNA
OPAL or AMBER or OCHRE	tRNA – OPAL or AMBER or OCHRE
RIBONUCLEASE P, RNASE P	Ribonuclease
FMET, FME, INITIATOR, INI, PRIMER	tRNA
S-TURN, CATALYTIC RNA, HAMMERHEAD	Ribozyme
APTAMER	Riboswitch
4.8S, 5S, 5.8S, 16S, 18S, 23S, 28S, 30S, 50S, 70S, 80S	rRNA
4.5S, 7S, 7SL	SRP-RNA