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@ARTICLE{Leysen:142547,
author = {Leysen, S. and Vanderkelen, L. and Weeks, S. D. and
Michiels, C. W. and Strelkov, S. V. and DESY},
title = {{S}tructural basis of bacterial defense against g-type
lysozyme-based innate immunity},
journal = {Cellular and molecular life sciences},
volume = {70},
issn = {1420-682X},
address = {Basel},
publisher = {Birkhäuser},
reportid = {PHPPUBDB-25506},
pages = {1-10},
year = {2013},
note = {© Springer Basel; Post referee fulltext in progress;
Embargo 12 months from publication},
abstract = {Gram-negative bacteria can produce specific proteinaceous
inhibitors to defend themselves against the lytic action of
host lysozymes. So far, four different lysozyme inhibitor
families have been identified. Here, we report the crystal
structure of the Escherichia coli periplasmic lysozyme
inhibitor of g-type lysozyme (PliG-Ec) in complex with
Atlantic salmon g-type lysozyme (SalG) at a resolution of
0.95 Å, which is exceptionally high for a complex of two
proteins. The structure reveals for the first time the
mechanism of g-type lysozyme inhibition by the PliG family.
The latter contains two specific conserved regions that are
essential for its inhibitory activity. The inhibitory
complex formation is based on a double 'key-lock' mechanism.
The first key-lock element is formed by the insertion of two
conserved PliG regions into the active site of the lysozyme.
The second element is defined by a distinct pocket of PliG
accommodating a lysozyme loop. Computational analysis
indicates that this pocket represents a suitable site for
small molecule binding, which opens an avenue for the
development of novel antibacterial agents that suppress the
inhibitory activity of PliG.},
keywords = {Animals / Crystallography / Escherichia coli: chemistry /
Escherichia coli: immunology / Escherichia coli Proteins:
chemistry / Escherichia coli Proteins: metabolism /
Immunity, Innate: immunology / Models, Molecular /
Muramidase: chemistry / Muramidase: metabolism / Protein
Conformation / Salmo salar / Escherichia coli Proteins (NLM
Chemicals) / PliG protein, E coli (NLM Chemicals) /
Muramidase (NLM Chemicals)},
cin = {EMBL(-2012)},
ddc = {570},
cid = {$I:(DE-H253)EMBL_-2012_-20130307$},
pnm = {DORIS Beamline D1.2 (POF2-54G13)},
pid = {G:(DE-H253)POF2-D1.2-20130405},
experiment = {EXP:(DE-H253)D-D1.2-20150101},
typ = {PUB:(DE-HGF)16},
pubmed = {pmid:23086131},
UT = {WOS:000315343600011},
doi = {10.1007/s00018-012-1184-1},
url = {https://bib-pubdb1.desy.de/record/142547},
}