% IMPORTANT: The following is UTF-8 encoded. This means that in the presence
% of non-ASCII characters, it will not work with BibTeX 0.99 or older.
% Instead, you should use an up-to-date BibTeX implementation like “bibtex8” or
% “biber”.
@ARTICLE{Rajasekar:317072,
author = {Rajasekar, Karthik V. and Lovering, Andrew L. and Dancea,
Felician and Scott, David J. and Harris, Sarah A. and
Bingle, Lewis E. H. and Roessle, Manfred and Thomas,
Christopher M. and Hyde, Eva I. and White, Scott A.},
title = {{F}lexibility of {K}or{A}, a plasmid-encoded, global
transcription regulator, in the presence and the absence of
its operator},
journal = {Nucleic acids symposium series},
volume = {44},
number = {10},
issn = {1362-4962},
address = {Oxford},
publisher = {Oxford Univ. Press},
reportid = {PUBDB-2017-00413},
pages = {4947 - 4956},
year = {2016},
abstract = {The IncP (Incompatibility group P) plasmids are important
carriers in the spread of antibiotic resistance across
Gram-negative bacteria. Gene expression in the IncP-1
plasmids is stringently controlled by a network of four
global repressors, KorA, KorB, TrbA and KorC interacting
cooperatively. Intriguingly, KorA and KorB can act as
co-repressors at varying distances between their operators,
even when they are moved to be on opposite sides of the DNA.
KorA is a homodimer with the 101-amino acid subunits,
folding into an N-terminal DNA-binding domain and a
C-terminal dimerization domain. In this study, we have
determined the structures of the free KorA repressor and two
complexes each bound to a 20-bp palindromic DNA duplex
containing its consensus operator sequence. Using a
combination of X-ray crystallography, nuclear magnetic
resonance spectroscopy, SAXS and molecular dynamics
calculations, we show that the linker between the two
domains is very flexible and the protein remains highly
mobile in the presence of DNA. This flexibility allows the
DNA-binding domains of the dimer to straddle the operator
DNA on binding and is likely to be important in cooperative
binding to KorB. Unexpectedly, the C-terminal domain of KorA
is structurally similar to the dimerization domain of the
tumour suppressor p53.},
cin = {EMBL},
ddc = {540},
cid = {I:(DE-H253)EMBL-20120731},
pnm = {899 - ohne Topic (POF3-899)},
pid = {G:(DE-HGF)POF3-899},
experiment = {EXP:(DE-H253)DORISIII(machine)-20150101},
typ = {PUB:(DE-HGF)16},
UT = {WOS:000379754600043},
pubmed = {pmid:27016739},
doi = {10.1093/nar/gkw191},
url = {https://bib-pubdb1.desy.de/record/317072},
}