Abstract
The covalent structure of rat ribosomal protein L7 was determined in part from the sequence of nucleotides in a recombinant cDNA and in part from the sequence of amino acids in portions of the protein. The complementary analyses supplemented and confirmed each other. Ribosomal protein L7 contains 258 amino acids and has a molecular weight of 30,040. The protein has an unusual and striking structural feature near the NH2 terminus: five tandem repeats of a sequence of 12 residues. Rat L7 appears to be related to ribosomal protein L7 from the moderate halophile Vibrio costicola and perhaps to L30 from Bacillus stearothermophilus, to L7 from the moderate halophile NRCC 41227, and to L22 from Nicotinia tobaccum chloroplast. In addition, there is a sequence of 24 amino acids in rat protein L7 that may be related to segments of the same number of residues in Escherichia coli ribosomal proteins S10, S15, L9, and L22.
Highlights
From the $.Department of Biochemistryand Molecular Biology, The University of Chicago, Chicago,Illinois 60637 and the $DevelopmentalBiochemistryResearch Unit, Institute of Biochemistry, The Hebrew University and Hadassah Medical School, Jerusalem, Israel
Progress has been made in this analysis, a good deal remains to be done [1]
The structure of anumber of rat ribosomal proteinshas been determined from recombinant cDNAs
Summary
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