Facilitated unbinding via multivalency-enabled ternary complexes: New paradigm for protein–DNA interactions

TY Chen, YS Cheng, PS Huang… - Accounts of Chemical …, 2018 - ACS Publications
Conspectus Dynamic protein–DNA interactions constitute highly robust cellular machineries
to fulfill cellular functions. A vast number of studies have focused on how DNA-binding …

How do DNA-bound proteins leave their binding sites? The role of facilitated dissociation

A Erbaş, JF Marko - Current opinion in chemical biology, 2019 - Elsevier
Dissociation of a protein from DNA is often assumed to be described by an off rate that is
independent of other molecules in solution. Recent experiments and computational …

Concentration-and chromosome-organization-dependent regulator unbinding from DNA for transcription regulation in living cells

TY Chen, AG Santiago, W Jung, Ł Krzemiński… - Nature …, 2015 - nature.com
Binding and unbinding of transcription regulators at operator sites constitute a primary
mechanism for gene regulation. While many cellular factors are known to regulate their …

Comprehensive genomic and proteomic profiling reveal Acinetobacter johnsonii JH7 responses to Sb (III) toxicity

J Gu, J Yao, R Duran, G Sunahara - Science of The Total Environment, 2020 - Elsevier
Antimony (Sb) pollution poses a severe health threat to ecosystems. However, the toxic
effects of Sb on biota are far from being elucidated. One of the unresolved questions is the …

The interplay of the metallosensor CueR with two distinct CopZ chaperones defines copper homeostasis in Pseudomonas aeruginosa

L Novoa-Aponte, D Ramírez, JM Argüello - Journal of Biological Chemistry, 2019 - ASBMB
Copper homeostasis in pathogenic bacteria is critical for cuproprotein assembly and
virulence. However, in vivo biochemical analyses of these processes are challenging, which …

Single molecule force spectroscopy: a new tool for bioinorganic chemistry

H Li, P Zheng - Current Opinion in Chemical Biology, 2018 - Elsevier
Highlights•Atomic force microscopy allows for measurements of metal single bond ligand
bond strength.•Stretching metalloproteins leads to protein unfolding and metal single bond …

Trapping intermediates in metal transfer reactions of the CusCBAF export pump of Escherichia coli

KN Chacón, J Perkins, Z Mathe, K Alwan… - Communications …, 2018 - nature.com
Escherichia coli CusCBAF represents an important class of bacterial efflux pump exhibiting
selectivity towards Cu (I) and Ag (I). The complex is comprised of three proteins: the CusA …

Multiple binding configurations of Fis protein pairs on DNA: Facilitated dissociation versus cooperative dissociation

MY Tsai, W Zheng, M Chen… - Journal of the American …, 2019 - ACS Publications
As a master transcription regulator, the Fis protein influences over two hundred genes of E.
coli. The Fis protein's nonspecific binding to DNA is widely acknowledged, and its kinetics of …

Investigation of metal ion binding biomolecules one molecule at a time

M de la Torre, A Pomorski - Frontiers in Chemistry, 2024 - frontiersin.org
Metal ions can perform multiple roles ranging from regulatory to structural and are crucial for
cell function. While some metal ions like Na+ are ubiquitously present at high …

The Copper Efflux Regulator CueR Is Subject to ATP-Dependent Proteolysis in Escherichia coli

LM Bittner, A Kraus, S Schäkermann… - Frontiers in molecular …, 2017 - frontiersin.org
The trace element copper serves as cofactor for many enzymes but is toxic at elevated
concentrations. In bacteria, the intracellular copper level is maintained by copper efflux …