2.1.1.63 methylated-DNA-[protein]-cysteine S-methyltransferase ependymoma cell - 704813 3.1.3.3 phosphoserine phosphatase ependymoma cell - 682867 3.1.4.53 3',5'-cyclic-AMP phosphodiesterase ependymoma cell - 691859 3.4.21.B10 neurosin ependymoma cell grade II 732960