about half of the inhibitory effect on the beat frequency of sea urchin spermatozoa flagella by beta , gamma-imido-adenosine-5'-triphosphate ( amppnp ) previously reported by okuno & brokaw ( 1981 ) was actually the result of inhibition by lithium resulting from the use of a tetralithium salt of amppnp .
C0001480
adenosine-5
C0001506
amppnp