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@ARTICLE{Atkinson:858361,
author = {Atkinson, Sarah C. and Dogovski, Con and Wood, Kathleen and
Griffin, Michael D. W. and Gorman, Michael A. and Hor,
Lilian and Reboul, Cyril F. and Buckle, Ashley M. and
Wuttke, Joachim and Parker, Michael W. and Dobson, Renwick
C. J. and Perugini, Matthew A.},
title = {{S}ubstrate {L}ocking {P}romotes {D}imer-{D}imer {D}ocking
of an {E}nzyme {A}ntibiotic {T}arget},
journal = {Structure},
volume = {26},
number = {7},
issn = {0969-2126},
address = {Cambridge, Mass.},
publisher = {Cell Press},
reportid = {FZJ-2018-07248},
pages = {948 - 959.e5},
year = {2018},
abstract = {Protein dynamics manifested through structural flex-ibility
play a central role in the function of biologicalmolecules.
Here we explore the substrate-mediatedchange in protein
flexibility of an antibiotic targetenzyme, Clostridium
botulinum dihydrodipicolinatesynthase. We demonstrate that
the substrate, pyru-vate, stabilizes the more active
dimer-of-dimers ortetrameric form. Surprisingly, there is
little differencebetween the crystal structures of apo and
substrate-bound enzyme, suggesting protein dynamics may
beimportant. Neutron and small-angle X-ray
scatteringexperiments were used to probe
substrate-induceddynamics on the sub-second timescale, but
nosignificant changes were observed. We thereforedeveloped a
simple technique, coined protein dy-namics-mass spectrometry
(ProD-MS), which en-ables measurement of time-dependent
alkylation ofcysteine residues. ProD-MS together with
X-raycrystallography and analytical
ultracentrifugationanalyses indicates that pyruvate locks
the conforma-tion of the dimer that promotes docking to the
moreactive tetrameric form, offering insight into
ligand-mediated stabilization of multimeric enzymes.},
cin = {JCNS-FRM-II},
ddc = {540},
cid = {I:(DE-Juel1)JCNS-FRM-II-20110218},
pnm = {6G15 - FRM II / MLZ (POF3-6G15) / 6G4 - Jülich Centre for
Neutron Research (JCNS) (POF3-623)},
pid = {G:(DE-HGF)POF3-6G15 / G:(DE-HGF)POF3-6G4},
experiment = {EXP:(DE-MLZ)SPHERES-20140101},
typ = {PUB:(DE-HGF)16},
pubmed = {pmid:29804823},
UT = {WOS:000437809100005},
doi = {10.1016/j.str.2018.04.014},
url = {https://juser.fz-juelich.de/record/858361},
}