Differences in heterocycle basicity distinguish homocysteine from cysteine using aldehyde-bearing fluorophores.
Differences in heterocycle basicity distinguish homocysteine from cysteine using aldehyde-bearing fluorophores.
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杂环碱度的差异使用含醛的荧光团区分同型半胱氨酸和半胱氨酸。
DOI:
10.1039/c4cc03527e
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发表时间:
2014-08-04
期刊:
影响因子:
--
通讯作者:
Strongin RM
中科院分区:
文献类型:
--
作者:
Barve A;Lowry M;Escobedo JO;Huynh KT;Hakuna L;Strongin RM
We report the detection of homocysteine over cysteine based upon characteristic differences between 5-and 6-membered heterocyclic amines formed upon reaction with aldehyde-bearing compounds. Homocysteine-derived thiazinane-4-carboxylic acids are more basic than cysteine-derived thiazolidines-4-carboxylic acids. Fluorescence enhancement in response to homocysteine is achieved by tuning pH and excitation wavelength.
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