The graph below is derived from a Schild analysis, carried out under appropriate conditions. Based on this graph alone, which one of the following conclusions can you make?单项选择题

题目图片
A

The pA2 of antagonist X is ~7.3

B

This Schild plot confirms that Antagonist X acts in a competitive reversible manner.

C

Antagonist X is likely to be acting as an allosteric modulator.

D

1x10-8M of Antagonist X would likely cause more than 2-fold shift of the agonist CR curve.

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