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Updated: Jul 17, 2026

Isolation of Translating Ribosomes Containing Peptidyl-tRNAs for Functional and Structural Analyses
Published on: February 25, 2011
Interaction of immobilized human exportin-t with calf liver tRNA
1Laboratorium für Biochemie, Universität Bayreuth, Bayreuth, Germany.
Abstract:
The binding of tRNA species from calf liver to immobilized exportin-t in the presence of ran x GppNHp was examined by affinity chromatography. We observed different eluting behaviors of individual tRNAs. After separating tRNAs on a two-dimensional polyacrylamide gel, the positions of seven selected tRNAs were identified by Northern hybridization and their relative affinities to immobilized exportin-t x ran x GppNHp complex were estimated in the order of tRNA(Leu)(CAG) > tRNA(Ser)(GCU), tRNA(Leu)(CAA), tRNA(Ser)(UGA) > tRNA(Ser)(AGA), tRNA(Leu)(AAG) > tRNA(Arg)(ACG). We propose that exportin-t preferentially binds and exports those tRNAs that are rapidly consumed by the protein synthesis machinery.
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