... Kojima, M., Oguro, K., Sawabe, K., Iida, Y. , Ikeda, R., Yamashita, A. , Nakanishi, N & Hasegawa, H (2000) Rapid turnover of tryptophan hydroxylase is driven by proteasomes in RBL2H3 cells, a serotonin ... Ichiyama, A. , Nakamura, S., Nishizuka, Y & Hayaishi, O (1970) Enzymic studies on the biosynthesis of serotonin in mammalian brain J Biol Chem 245, 1699–1709 Ichiyama, A. , Hasegawa, H., Tohyama, ... mastocytoma P-815 was readily phosphorylated by CaM kinase II Although the TPH from P-815 cells was easily phosphorylated by this kinase, its enzymic activity was not altered by the phosphorylation...