TABLE 3.

Rb phosphorylation in a transient transfection

	WT UL97a WT Rbb	UL97 L1a WT Rb	WT UL97 Rb CMb	WT UL97 Rb RXLb
Thr5	NTc	NT	NT	NT
Ser230	NT	NT	NT	NT
Ser249/Thr252	−c	−	−	−
Thr356	+c	−	−	+
Thr373	+	±c	−	+
Ser567	NT	NT	NT	NT
Ser608	+	+	±	+
Ser612	+	+	±	+
Ser780	+	±	±	+
Ser788	+	+	±	+
Ser795	+	+	−	+
Ser807/Ser811	+	+	±	+
Thr821	+	±	−	+
Thr826	+	−	−	−

^a WT, wild-type UL97; L1, L1 motif-mutated UL97.

^b WT, wild-type Rb; CM, Rb N757F mutant; RXL, Rb1–829 mutant.

^c NT, not tested; +, apparent; ±, marginal; −, absent.