| 摘要 |
The present invention relates to a method and a reagent for quantitating D-cysteine in a convenient and highly-sensitive manner.The present invention provides a method for quantitating D-cysteine in a sample, comprising the steps of: (a) reacting D-cysteine with a D-luciferin precursor to produce D-luciferin or a D-luciferin derivative; and (b) quantitating D-cysteine by determining the level of the produced D-luciferin or D-luciferin derivative. The D-luciferin precursor may be 2-cyano-6-hydroxybenzothiazole or 2-cyano-6-O-beta-D-galactosylbenzothiazole.The present invention also provides a reagent for quantitating D-cysteine, which comprises the D-luciferine precursor.
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