Fructose controlled ionophoric activity of a cholate-boronic acid.
Fructose controlled ionophoric activity of a cholate-boronic acid.
复制标题
果糖控制胆酸硼酸的离子载体活性。
DOI:
10.1039/c4ob00165f
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发表时间:
2014
影响因子:
3.2
通讯作者:
Brown JR
中科院分区:
文献类型:
--
作者:
Brown JR
Wulff-type boronic acids have been shown to act as ionophores at pH 8.2 by transporting Na+ through phospholipid bilayers. A cholate–boronic acid conjugate was synthesised and shown to be an ionophore, although the hydroxyl-lined face of the cholate moiety did not enhance ion transport. Mechanistic studies suggested a carrier mechanism for Na+ transport. The addition of fructose (>5 mM) strongly inhibited ionophoric activity of the cholate–boronic acid conjugate, mirrored by a strong decrease in the ability of this compound to partition into an organic phase. Modelling of the partitioning and ion transport data, using a fructose/boronic acid binding constant measured at pH 8.2, showed a good correlation with the extent of fructose/boronic acid complexation and suggested high polarity fructose/boronic acid complexes are poor ionophores. The sensitivity of ion transport to fructose implies that boronic acid-based antibiotic ionophores with activity modulated by polysaccharides in the surrounding environment may be accessible.
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影响因子:
16.6
作者:
Li, Yuanpei;Xiao, Wenwu;Xiao, Kai;Berti, Lorenzo;Luo, Juntao;Tseng, Harry P.;Fung, Gabriel;Lam, Kit S.
通讯作者:
Lam, Kit S.
影响因子:
3.6
作者:
MORIN, GT;PAUGAM, MF;SMITH, BD
通讯作者:
SMITH, BD
影响因子:
15
作者:
Bandyopadhyay, P;Janout, V;Regen, SL
通讯作者:
Regen, SL
DOI:
10.1039/c39860000349
发表时间:
1986
期刊:
Journal of The Chemical Society, Chemical Communications
影响因子:
--
作者:
T. Shinbo;K. Nishimura;Tomohiko Yamaguchi;M. Sugiura
通讯作者:
M. Sugiura
影响因子:
3.6
作者:
B. Roy;S. Mallik
通讯作者:
S. Mallik