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Final steps of the maturation of Omp F, a major protein from the outer membrane of Escherichia coli
Author(s) -
Barbas J.A.,
Vázquez D.,
Rodríguez-Tébar A.
Publication year - 1985
Publication title -
febs letters
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.593
H-Index - 257
eISSN - 1873-3468
pISSN - 0014-5793
DOI - 10.1016/0014-5793(85)80877-2
Subject(s) - bacterial outer membrane , trimer , cell envelope , bifunctional , inner membrane , chemistry , escherichia coli , membrane , membrane protein , reagent , monomer , biophysics , biochemistry , biology , organic chemistry , dimer , polymer , gene , catalysis
Pulse‐labelling experiments with E. coli cells allowed us to follow the incorporation of de novo proteins into the outer membrane of the cell envelope. Labelled membrane samples containing increasingly different levels of newly synthesized Omp F protein were subjected to chemical cross‐linking with a bifunctional cleavable reagent in order to investigate the process of trimer formation of the protein. From the results obtained, we conclude that the formation of functional Omp F trimers is substantially delayed to, and can be distinguished from, the incorporation of Omp F monomers to the outer membrane.