[The identification of the sites of tRNA(Ser)(GCU) interaction in bovine liver with homologous aminoacyl-tRNA-synthetase by the chemical modification method]. / Vyznachennia dilianok vzaiemodiï tRNK(Ser)(GCU) pechinky byka iz homol'ohichnoiu aminoatsyl-tRNK-syntetazoiu metodom khemichnoï modyfikatsiï.

Interaction of the bovine liver tRNA(GCUSer) having a long variable loop, with the cognate aminoacyl-tRNA synthetase has been studied by alkylation with ethylnitrosourea. It was shown that seryl-tRNA synthetase protects 3'-phosphates of nucleotides 12, 13 in D-stem and 45-47-, 47 G.-, 47 H-variable stem of tRNA(GCUreS) from alkylation. An anticodon loop of tRNA(GCUSer) did not interact with seryl-tRNA synthetase.