Structural Determinant of a Ribosomal Protein: K Locus

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Science  13 Jun 1969:
Vol. 164, Issue 3885, pp. 1285-1286
DOI: 10.1126/science.164.3885.1285


One of the ribosomal proteins (30S-8B) of Escherichia coli B has a greater electrophoretic mobility than the homologous protein (30S-8K) in E. coli K. The amino acid compositions, tryptic peptides, and cyanogen bromide peptides of these two homologous proteins unambiguously indicate that the genetic locus which determines the electrophoretic mobility of protein 30S-8 is the structural gene for this protein.

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