Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
8
pubmed:dateCreated
1990-4-9
pubmed:abstractText
The folding of in vitro synthesized outer membrane protein PhoE of Escherichia coli was studied in immunoprecipitation experiments with monoclonal antibodies which recognize cell surface-exposed conformational epitopes. The signal sequence appears to interfere with the formation of these conformational epitopes, since a mutant PhoE protein which lacks the majority of the signal peptide could be precipitated four times better than the wild type precursor. Sodium dodecyl sulfate-polyacrylamide gel electrophoresis of the immunoprecipitated PhoE protein revealed that part of the immunoprecipitated PhoE was present as a heat-modifiable form of the protein which migrated faster in the gels than the completely denatured protein. This form of the protein probably represents a folded monomer which might be an intermediate in the assembly of the protein. Outer membrane vesicles were required to induce the formation of small amounts of heat-stable trimers, the functional form of the protein in vivo.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Mar
pubmed:issn
0021-9258
pubmed:author
pubmed:issnType
Print
pubmed:day
15
pubmed:volume
265
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
4646-51
pubmed:dateRevised
2008-11-21
pubmed:meshHeading
pubmed:year
1990
pubmed:articleTitle
Assembly of an in vitro synthesized Escherichia coli outer membrane porin into its stable trimeric configuration.
pubmed:affiliation
Institute of Molecular Biology and Medical Biotechnology, University of Utrecht, The Netherlands.
pubmed:publicationType
Journal Article