when dl-ins ( 1,4,5 ) p3 or dl-ins ( 1,4,5 ) p3 [ s ] 3 was treated with a crude preparation of ins ( 1,4,5 ) p3 3-kinase and atp , and the ca2+-releasing activity of the products subsequently assayed , dl-ins ( 1,4,5 ) p3 was completely inactivated by phosphorylation , but there was no loss of activity of the phosphorothioate analogue .
C0031727
kinase
C0031715
phosphorylation