Analysis of mutational alterations in the hydrophilic segment of the maltose-binding protein signal peptide.

Abstract

Oligonucleotide-directed mutagenesis was employed to investigate the role of the hydrophilic segment of the Escherichia coli maltose-binding protein (MBP) signal peptide in the protein export process. The three basic residues residing at the amino terminus of the signal peptide were systematically substituted with neutral or acidic residues, decreasing the… (More)

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