3Glu/4Asp, $t3$/$t4$, aaRS3 → aaRS4	#4-Glu-#23 (Route 0) ∼#5-Asp-#21 (Route 1)
7Ser/10Arg, $t{7}^{-}$/$t{10}^{-}$, aaRS7 / aaRS10	#8-Ser-#17 (Route 1) ∼ #11-Arg-#14 (Route 0)
11Cys/12Trp, $t11$/$t12$, aaRS11 → aaRS12	#9-Cys-#18 (Route 2) ∼#12-Trp-(#15) (Route 3)
13His/14Gln, $t13$/$t14$, aaRS13 → aaRS14	#19-His-#22 (Route 2) ∼#20-Gln-#28 (Route 3)
15Ile/16Met,$t15$,$t16$/$t{15}^{+}$,aaRS15→aaRS16	#29-Ile/Met-#22 (Route 2) ∼ #21-Ile-#30 (Route 1)
8Leu/17Phe, $t{8}^{-}$/$t17$, aaRS8 → aaRS17	#28-Leu-#31 (Route 3) ∼ #23-Phe-#32 (Route 0)
18Tyr/stop, t18, aaRS18	#24-Tyr-#29 (Route 2) ∼#25-stop-#31 (Route 3)
19Asn/20Lys, $t19$/$t20$, aaRS19 → aaRS20	#26-Asn-#30 (Route 1) ∼#27-Lys-#32 (Route 0)