PMID:6990274
| Citation |
Bedouelle, H, Bassford, PJ Jr, Fowler, AV, Zabin, I, Beckwith, J and Hofnung, M (1980) Mutations which alter the function of the signal sequence of the maltose binding protein of Escherichia coli. Nature 285:78-81 |
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| Abstract |
The maltose binding protein of Escherichia coli is secreted into the external periplasmic compartment of the cell by virtue of an amino-terminal signal sequence. Using DNA sequencing, we have determined the precise nature of mutations in the signal sequence which prevent the export of the maltose binding protein, causing it to accumulate in the cytoplasm in its precursor form. In most cases, the change of a single hydrophobic or uncharged amino acid to a charged amino acid within the signal sequence is sufficient to block the secretion process. |
| Links | |
| Keywords |
ATP-Binding Cassette Transporters; Amino Acid Sequence; Bacterial Proteins/genetics; Base Sequence; Carrier Proteins/genetics; Carrier Proteins/secretion; DNA, Bacterial/genetics; Escherichia coli/genetics; Escherichia coli Proteins; Genes; Maltose/metabolism; Maltose-Binding Proteins; Monosaccharide Transport Proteins; Mutation; Periplasmic Binding Proteins; Phenotype |
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