190779-61-4Relevant articles and documents
Mechanistic basis of the inhibition of slc11/nramp-mediated metal ion transport by bis-isothiourea substituted compounds
Manatschal, Cristina,Pujol-Giménez, Jonai,Poirier, Marion,Reymond, Jean-Louis,Hediger, Matthias A.,Dutzler, Raimund
, (2020/01/13)
In humans, the divalent metal ion transporter-1 (DMT1) mediates the transport of ferrous iron across the apical membrane of enterocytes. Hence, its inhibition could be beneficial for the treatment of iron overload disorders. Here we characterize the interaction of aromatic bis-isothiourea-substituted compounds with human DMT1 and its prokaryotic homologue EcoDMT. Both transporters are inhibited by a common competitive mechanism with potencies in the low micromolar range. The crystal structure of EcoDMT in complex with a brominated derivative defines the binding of the inhibitor to an extracellular pocket of the transporter in direct contact with residues of the metal ion coordination site, thereby interfering with substrate loading and locking the transporter in its outward-facing state. Mutagenesis and structure-activity relationships further support the observed interaction mode and reveal species-dependent differences between pro-and eukaryotic transporters. Together, our data provide the first detailed mechanistic insight into the pharmacology of SLC11/NRAMP transporters.
Recognition of phosphopeptides by a dinuclear copper(II) macrocyclic complex in a water:methanol 50:50 v/v solution
Mesquita, Lígia M.,Mateus, Pedro,Fernandes, Rui D. V.,Iranzo, Olga,André, Vania,Tiago De Oliveira, Filipe,Platas-Iglesias, Carlos,Delgado, Rita
, p. 9549 - 9564 (2017/08/02)
A new triethylbenzene-derived tetraazamacrocycle containing pyridyl spacers, L, was prepared and its dinuclear copper(ii) complex was used as a receptor for the recognition of phosphorylated peptides in aqueous solution. A detailed study of the acid-base
Metal triggered fluorescence sensing of citrate using a synthetic receptor
Cabell, Larry A.
, p. 315 - 323 (2007/10/03)
A metal containing fluorescent chemosensor was designed, synthesized, and studied for the quantification of citrate in common beverages. The sensor consists of Cu(II) bound by a 1,10-phenanthroline ligand which is attached to a bis(aminoimidazolium) recep