Fig. 1: Type of tRNA modification.

Several types of tRNA modifications: A Methyladenosine modification, Taking m1A modification as an example. B Methylcytosine modification, Taking m5C modification as an example. C Methylguanosine modification, Taking m1G modification as an example. D Pseudouridine modification. E Dihydrouracil modification. F Hypoxanthine modification. G 2’-O-Methylation modification.