Document Detail


Release of a chimeric protein into the medium from Escherichia coli using the C-terminal secretion signal of haemolysin.
MedLine Citation:
PMID:  3119330     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
Recently, we have identified a novel topogenic sequence at the C terminus of Escherichia coli haemolysin (HlyA) which is essential for its efficient secretion into the medium. This discovery has introduced the possibility of using this secretion system for the release of chimeric proteins from E. coli directly into the medium. We have now successfully fused this C-terminal signal to a hybrid protein containing a few residues of beta-galactosidase and the majority of the E. coli outer membrane porin OmpF lacking its own N-terminal signal sequence. We find that this chimeric protein is specifically translocated across the inner and outer membranes and is released into the medium. In addition, we have further localized the HlyA secretion signal to the final 113 amino acids of the C terminus. In fact, a specific secretion signal appears to reside at least in part within the last 27 amino acids of HlyA.
Authors:
N Mackman; K Baker; L Gray; R Haigh; J M Nicaud; I B Holland
Publication Detail:
Type:  Journal Article; Research Support, Non-U.S. Gov't    
Journal Detail:
Title:  The EMBO journal     Volume:  6     ISSN:  0261-4189     ISO Abbreviation:  EMBO J.     Publication Date:  1987 Sep 
Date Detail:
Created Date:  1988-01-11     Completed Date:  1988-01-11     Revised Date:  2009-11-18    
Medline Journal Info:
Nlm Unique ID:  8208664     Medline TA:  EMBO J     Country:  ENGLAND    
Other Details:
Languages:  eng     Pagination:  2835-41     Citation Subset:  IM    
Affiliation:
Research Institute of Scripps Clinic, Department of Immunology, La Jolla, CA 92037.
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MeSH Terms
Descriptor/Qualifier:
Amino Acid Sequence
Bacterial Outer Membrane Proteins / genetics
Chimera*
Escherichia coli / genetics*,  metabolism
Genes
Genes, Bacterial
Hemolysin Proteins / genetics*,  metabolism
Molecular Sequence Data
Plasmids
beta-Galactosidase / genetics
Chemical
Reg. No./Substance:
0/Bacterial Outer Membrane Proteins; 0/Hemolysin Proteins; EC 3.2.1.23/beta-Galactosidase
Comments/Corrections

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine


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