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Enzyme kinetic studies showed that the MA was not only a competitive inhibitor of CYP3A4 in humans, but also a competitive inhibitor of CYP2C11 and 3A2 in rats, with [K.
Carnosine has been shown to act as a competitive inhibitor of the non-enzymatic glycosylation of proteins," Babizhayev and colleague A.
Perchlorate is a competitive inhibitor of the sodium iodide symporter, the thyroid cell-surface protein responsible for transporting iodide from the plasma into the thyroid.
Alpha methyl ornithine, a potent competitive inhibitor of ornithine decarboxylase blocks proliferation of rat hepatoma cells in culture.
A non competitive inhibitor may bind to the allosteric site of the enzyme and not necessarily bind to the active site of the enzyme.
Perchlorate acts pharmacologically as a competitive inhibitor of thyroidal iodide uptake in mammals, but the impacts of perchlorate contamination in aquatic ecosystems and, in particular, the effects on fish are unclear.
Dimethylaminoethanol (DMAE), a competitive inhibitor of choline transport, elicited dysmorphology beginning at the mid-blastula stage, with anomalies beginning progressively later as the concentration of DMAE was lowered.
It is thought that because of its similarity in ionic size to iodide, the perchlorate ion is a competitive inhibitor of iodide at the sodium iodide symporter (NIS), the plasma membrane protein that catalyzes the accumulation of iodide into thyroid cells (Wolff 1998).

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