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Studies on two groups of aminoacyl-tRNA synthetases from rat liver

✍ Scribed by W. S. Bont; J. Geels; G. Rezelman

Publisher
Springer
Year
1976
Tongue
English
Weight
291 KB
Volume
2
Category
Article
ISSN
0301-4851

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✦ Synopsis

Aminoacyl-tRNA synthetases from rat-liver cytoplasm were fractionated into two groups, characterized by their sedimentation coefficients of about 20S and 5S, respectively. These two groups of synthetases could be isolated from postmicrosomal supernatant either by gradient centrifugation, by gel filtration or by acid treatment at pH 5.2. Both groups were required for maximal amino acid incorporation in a cell-free system.

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