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. 1993 Mar;175(5):1543–1547. doi: 10.1128/jb.175.5.1543-1547.1993

Escherichia coli SecB, SecA, and SecY proteins are required for expression and membrane insertion of the bacteriocin release protein, a small lipoprotein.

B Oudega 1, O Mol 1, P van Ulsen 1, F Stegehuis 1, F J van der Wal 1, J Luirink 1
PMCID: PMC193245  PMID: 8444816

Abstract

The SecB, SecA, and SecY dependency of a small outer membrane lipoprotein in Escherichia coli, the bacteriocin release protein (BRP), was studied. The detrimental effect of BRP expression on the culture turbidity (quasi-lysis) was strongly reduced in the sec mutants. Immunoblotting and radioactive labeling experiments showed that the expression, membrane insertion, and processing of the BRP precursor are dependent on SecB, SecA, and SecY. Labeling experiments with hybrid BRP gene constructs revealed that the mature part of the BRP precursor and not its stable signal sequence is important for its SecB dependency.

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Selected References

These references are in PubMed. This may not be the complete list of references from this article.

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