Transmembrane transport of Inorganic phosphate by a strapped Calix [4] pyrrole

A Cataldo, K Norvaisa, L Halgreen… - Journal of the …, 2023 - ACS Publications
A Cataldo, K Norvaisa, L Halgreen, SE Bodman, K Bartik, SJ Butler, H Valkenier
Journal of the American Chemical Society, 2023ACS Publications
Synthetic anion receptors are increasingly being explored for the transport of anions across
lipid membranes because of their potential therapeutic applications. A considerable amount
of research focuses on the transport of chloride, whereas the transmembrane transport of
inorganic phosphate has not been reported to date, despite the biological relevance of this
anion. Here we present a calix [4] pyrrole with a bisurea strap that functions as a receptor
and transporter for H2PO4–, relying on the formation of eight hydrogen bonds and efficient …
Synthetic anion receptors are increasingly being explored for the transport of anions across lipid membranes because of their potential therapeutic applications. A considerable amount of research focuses on the transport of chloride, whereas the transmembrane transport of inorganic phosphate has not been reported to date, despite the biological relevance of this anion. Here we present a calix[4]pyrrole with a bisurea strap that functions as a receptor and transporter for H2PO4, relying on the formation of eight hydrogen bonds and efficient encapsulation of the anion. Using a phosphate-sensitive lanthanide probe and 31P NMR spectroscopy, we demonstrate that this receptor can transport phosphate into vesicles by H2PO4/Cl antiport, H2PO4 uniport, and Cs+/H2PO4 symport mechanisms. This first example of inorganic phosphate transport by a neutral receptor opens perspectives for the future development of transporters for various biological phosphates.
ACS Publications
以上显示的是最相近的搜索结果。 查看全部搜索结果