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  • Title: Requirement for signal peptide cleavage of Escherichia coli prolipoprotein.
    Author: Inouye S, Hsu CP, Itakura K, Inouye M.
    Journal: Science; 1983 Jul 01; 221(4605):59-61. PubMed ID: 6344218.
    Abstract:
    Oligonucleotide-directed site-specific mutagenesis was applied to alter the cleavage site in the signal peptide of the major outer membrane lipoprotein of Escherichia coli. Replacing the glycine residue at the cleavage site with an alanine residue did not affect the processing of the signal peptide. However, when the same cleavage site was constructed by the deletion of the glycine residue, the signal peptide was no longer cleaved. These results indicate that stringent structural integrity at the cleavage site in the lipoprotein signal sequence is required for correct processing of prolipoprotein.
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