Partial reassembly of active 60S ribosomal subunits from rat liver following treatment with dimethylmaleic anhydride
Open Access
- 1 February 1987
- journal article
- research article
- Published by Wiley in European Journal of Biochemistry
- Vol. 163 (1), 15-20
- https://doi.org/10.1111/j.1432-1033.1987.tb10730.x
Abstract
Rat liver 60S ribosomal subunits were treated with dimethylmaleic anhydride, a reagent for protein amino groups, at a 1/15 000 mol/mol ratio. This caused the dissociation of specific proteins, which were separated from the 56S residual core particles by centrifugation and identified by two-dimensional gel electrophoresis. The core particles lacking 30% of the total proteins retained most of the initial activity measured by the puromycin reaction but only small percentages of activities measured by polyphenylalanine synthesis, elongation-factor-2(EF-2)-dependent GTP hydrolysis and EF-2-mediated GDP binding. Upon reconstitution, the complementary amount of split proteins was incorporated into ribosomal particles, which had almost the same catalytic activities and biophysical properties (density, sedimentation coefficient and capability to reassociate to 40S subunits) as the original subunits.This publication has 32 references indexed in Scilit:
- Cross-linking of elongation factor 2 to rat-liver ribosomal proteins by 2-iminothiolaneEuropean Journal of Biochemistry, 1986
- Photo‐induced protein cross‐linking to 5S RNA and 28–5.8S RNA within rat‐liver 60S ribosomal subunitsEuropean Journal of Biochemistry, 1985
- Characterization and properties of a 5S‐RNA‐protein complex released from heated 60S ribosomal subunitsEuropean Journal of Biochemistry, 1984
- Interaction, topography and function of ribosomal componentsPublished by Springer Nature ,1982
- Photoincorporation of puromycin into rat liver ribosomes and subunitsBiochemistry, 1981
- Functional role of acidic ribosomal proteins. Interchangeability of proteins from bacterial and eukaryotic cellsBiochemistry, 1981
- Acidic Ribosomal Proteins from Eukaryotic CellsEuropean Journal of Biochemistry, 1979
- Photoaffinity labeling of rat liver ribosomes by phenylalanine‐tRNA N‐Acylated by 2‐nitro‐4‐azidobenzoic acidFEBS Letters, 1979
- Ribosomal Subunits from Rat LiverEuropean Journal of Biochemistry, 1972