Figure 6.
Influence of GTPγS on oxotremorine competition for [3H]NMS binding to heart homogenates. The ability of 10 µM GTPγS to shift the oxotremorine competition curve was determined in heart homogenates from (A) BALB/cByJ mice and (B) C57BL/6J mice. GTPγS shifted the oxotremorine competition curve of BALB/cByJ mice but did not affect the curve of C57BL/6J mice.