Inhibition study of rhodanese by means of electrophoretically mediated microanalysis
| Authors | |
|---|---|
| Year of publication | 2003 |
| Type | Article in Periodical |
| Magazine / Source | Journal of Chromatography A |
| MU Faculty or unit | |
| Citation | |
| Field | Biochemistry |
| Keywords | Capillary electrophoresis; Rhodenase; EMMA; Inhibition |
| Description | A combination of the electrophoretically mediated microanalysis methodology with a partial filling technique was applied for the inhibition study of the bovine liver rhodanese by 2-oxoglutarate. In this set-up, the part of capillary is filled with the buffer best for the enzymatic reaction whereas, the rest of the capillary is filled with the background electrolyte optimal for separation of substrates and products. The estimated value of KI for 2-oxoglutarate was 3.62 x 10-4 ą 1.43 x 10-4 M with respect to cyanide and 1.40 x 10-3 ą 1.60 x 10-4 M with respect to thiosulfate. Moreover the type of inhibition was also evaluated. The findings of 2-oxogluatarate as the competitive inhibitor with respect to cyanide and as the uncompetitive inhibitor with respect to thiosulfate are in accordance with previous literature data. |
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