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Lipoprotein Transport: Greasing the Machines of Outer Membrane Biogenesis
Author(s) -
Grabowicz Marcin
Publication year - 2018
Publication title -
bioessays
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 2.175
H-Index - 184
eISSN - 1521-1878
pISSN - 0265-9247
DOI - 10.1002/bies.201700187
Subject(s) - biogenesis , bacterial outer membrane , context (archaeology) , lipoprotein , limiting , biology , chemistry , escherichia coli , cholesterol , biochemistry , engineering , mechanical engineering , paleontology , gene
The Gram‐negative outer membrane (OM) is a potent permeability barrier against antibiotics, limiting clinical options amid mounting rates of resistance. The Lol transport pathway delivers lipoproteins to the OM. All the OM assembly machines require one or more OM lipoprotein to function, making the Lol pathway central for all aspects of OM biogenesis. The Lol pathways of many medically important species clearly deviate from the Escherichia coli paradigm, perhaps with implications for efforts to develop novel antibiotics. Moreover, recent work reveals the existence of an undiscovered alternate route for bringing lipoproteins to the OM. Here, lipoprotein transport mechanisms, and the quality control systems that underpin them, is re‐examined in context of their diversity.