tRNA dimethylallyltransferase (EC 2.5.1.75) (Isopentenyl-diphosphate:tRNA isopentenyltransferase) (IPP transferase) (IPPT) (hGRO1) (tRNA isopentenyltransferase 1) (IPTase)
1_MASVA 6_ AARAV 11_ PVGSG 16_ LRGLQ 21_ RTLPL 26_ VVILG 31_ ATGTG 36_ KSTLA 41_ LQLGQ 46_ RLGGE 51_ IVSAD 56_ SMQVY 61_ EGLDI 66_ ITNKV 71_ SAQEQ 76_ RICRH 81_ HMISF 86_ VDPLV 91_ TNYTV 96_ VDFRN 101_ RATAL 106_ IEDIF 111_ ARDKI 116_ PIVVG 121_ GTNYY 126_ IESLL 131_ WKVLV 136_ NTKPQ 141_ EMGTE 146_ KVIDR 151_ KVELE 156_ KEDGL 161_ VLHKR 166_ LSQVD 171_ PEMAA 176_ KLHPH 181_ DKRKV 186_ ARSLQ 191_ VFEET 196_ GISHS 201_ EFLHR 206_ QHTEE 211_ GGGPL 216_ GGPLK 221_ FSNPC 226_ ILWLH 231_ ADQAV 236_ LDERL 241_ DKRVD 246_ DMLAA 251_ GLLEE 256_ LRDFH 261_ RRYNQ 266_ KNVSE 271_ NSQDY 276_ QHGIF 281_ QSIGF 286_ KEFHE 291_ YLITE 296_ GKCTL 301_ ETSNQ 306_ LLKKG 311_ IEALK 316_ QVTKR 321_ YARKQ 326_ NRWVK 331_ NRFLS 336_ RPGPI 341_ VPPVY 346_ GLEVS 351_ DVSKW 356_ EESVL 361_ EPALE 366_ IVQSF 371_ IQGHK 376_ PTATP 381_ IKMPY 386_ NEAEN 391_ KRSYH 396_ LCDLC 401_ DRIII 406_ GDREW 411_ AAHIK 416_ SKSHL 421_ NQLKK 426_ RRRLD 431_ SDAVN 436_ TIESQ 441_ SVSPD 446_ HNKEP 451_ KEKGS 456_ PGQND 461_QELKC
1: Catalyzes the transfer of a dimethylallyl group onto the adenine at position 37 of both cytosolic and mitochondrial tRNAs, leading to the formation of N6-(dimethylallyl)adenosine (i6A37) (PubMed:11111046, PubMed:24126054, PubMed:24901367, PubMed:34774131). Mediates modification of a limited subset of tRNAs: tRNA(Ser)(AGA), tRNA(Ser)(CGA), tRNA(Ser)(UGA), as well as partial modification of the selenocysteine tRNA(Ser)(UCA) (PubMed:24126054). TRIT1 is therefore required for selenoprotein expression (PubMed:24126054)