protein kinase activity associated with purified tubulin does not correlate with the total content of protein kinase activity in brain homogenates , since microtubules isolated from 48 000g fetal brain supernatants contain twice as much protein kinase activity than adult microtubules , although the total protein kinase activity is twice as high in the 48 000g adult supernatant .
C0423896
content
C0006104
brain