Visual detection of cysteine and homocysteine.

ABSTRACT: The determination of cysteine and homocysteine levels is of great current interest for the monitoring of desease states. A new colorimetric method for the simultaneous detection of l-cysteine and l-homocysteine has been developed. A fluorescein derivative reacts with the above amino acids, producing their respective thiazolidines resulting in color changes. Interference from other amino acids and proteins is minimal.

SUBMITTER: Rusin O 

PROVIDER: S-EPMC3376414 | biostudies-literature | 2004 Jan

REPOSITORIES: biostudies-literature