Cation Molecular Exchanger Based on a Conformational Hinge
A cation molecular exchanger has been developed that consists of the bipyridine and crown ether receptor subunits. It has been shown that binding of the zinc(II) cation to the bipyridine subunit induces the conformational switching of the crown ether subunits, which results in a release of the potassium cation. Two conformational states of the cation exchanger have been supported by the results from solution- and solid-state studies. It has been demonstrated that the cation exchanger is able to communicate with a cation sensor induced by a chemical stimulus.
Ravi, Anil,Krishnarao, P. Sivarama,Shumilova, Tatiana A.,Khrustalev, Victor N.,Rüffer, Tobias,Lang, Heinrich,Kataev, Evgeny A.
p. 6211 - 6214
(2018/10/05)
Bis-Cyclohexyl-Crown-Ethers as Allosteric Carriers
Several bis-cyclohexyl-crown-ethers have been synthesized and used as carriers for alkaline cations.These compounds should all show negative allosteric cooperativity, but only 1 exhibits an odd cation transport behavior across the liquid organic membranes. Key words: Allosteric cooperativity; cation transport; crown-ethers; Na(1+)-K(1+)-ATPase; biological model.
Costero, Ana M.,Rodriguez, Santiago
p. 6265 - 6272
(2007/10/02)
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