phdg ( a ) inhibited the viral enzyme competitively with respect to the substrates thymidine and deoxycytidine , ( b ) was completely resistant to phosphorylation , ( c ) displayed limited toxicity for the hela cell lines employed as hosts for viral infection , and ( d ) selectively inhibited viral thymidine kinase function in intact cultured cells .
C0031715
phosphorylation
C0040078
thymidine kinase