Journal
CHEMICAL COMMUNICATIONS
Volume 50, Issue 60, Pages 8219-8222Publisher
ROYAL SOC CHEMISTRY
DOI: 10.1039/c4cc03527e
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Funding
- National Institutes of Health [R15EB016870]
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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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