Isolation and Characterization of a New Ribosomal Protein from the Thermophilic Eubacteria,Thermus thermophilus, T. aquaticusandT. flavus

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Abstract
A ribosomal protein, showing no homology with other known prokaryotic ribosomal proteins, was isolated and characterized from the thermophilic eubacteria, Thermus thermophilus, T. aquaticus and T. flavus. This small (26 amino acids) and strongly basic (1 acidic and 13 basic residues) protein displayed the same primary structure from all three sources. Interestingly, it shows about 65% homology with a ribosomal protein from spinach chloroplasts (J. Schmidt, personal communication).