Which of the following is NOT a characteristic of enzyme inhibitors?

Enzyme inhibitors are substances that reduce or block the activity of enzymes, which are vital for many biological reactions. They can achieve this through various mechanisms, but enhancing substrate binding is generally not one of them.

Enzyme inhibitors typically work by either binding to the enzyme or the enzyme-substrate complex, which decreases the rate of reaction. Some inhibitors compete with substrates for the active site, thereby blocking access and reducing binding efficiency. Others may non-competitively bind to a site other than the active site, which can alter the enzyme's shape, further inhibiting its function. While some inhibitors may alter the structure of an enzyme, they do so primarily to reduce activity rather than to enhance substrate interaction.

In contrast, the statement about enhancing substrate binding is misleading within the context of how inhibitors function. Instead of facilitating the binding of substrates, inhibitors are designed to prevent that binding or its effectiveness, ultimately leading to a reduction in the enzymatic activity. Therefore, the idea that they can enhance substrate binding is not characteristic of enzyme inhibitors.