Fig. 3
From: Evolution and structural variations in chloroplast tRNAs in gymnosperms
Examples of tRNAs with different structures. (A) Type 1 lacking an acceptor arm: tRNAAsn (GUU) of Nothotsuga longibracteata. (B) Type 2 where the 3′- end contains extra nucleotides: tRNAGln (UUG) in Sciadopitys verticillata. (C) Type 3 where the variable region contains loops or arms: tRNASer (GCU) in Abies koreana. (D) Type 4 where the 3′- end contains extra nucleotides and the variable region contains a loop and an arm: tRNASer (UGA) in Tsuga chinensis. (E) Normal structure of tRNAPhe (GAA) in Cedrus deodara