when samples of calcineurin immunoprecipitated from brain extracts were analyzed by atomic absorption spectroscopy , ni2+ and mn2+ were not detected , whereas , zn2+ , a constitutive metal of calcineurin ( king , m. m. , and huang , c. y . ( 1984 ) j. biol . chem . 259 , 8847-8856 ) was found in the expected amount .
C0054450
calcineurin
C0006104
brain