Table 3. Yeast two hybrid analysis of P-ExeB and P-ExeD two codon insertion mutants (D_m)^*.

	Two codon insertions
Insertion site	59	128	138	183	203	248	257	270
Subdomain	N0	N1	N1	N1	N2	N2	N2	N3
Residues inserted	IR	IR	IR	IR	SG	DP	IR	IR
B-Dm	−	+	+	+/−	+	+	+	+
Dm-B	−	−	−	−	+	+	+	+
D-Dm	+	+	−	−	−	−	−	+/−
Dm-D	+	−	−	−	−	−	−	+/−

*Interactions were assayed as described in Figure 2. (+): positive; (−): negative; (+/−): weak positive.