Table 3.

Hydrogen bonds and salt bridges observed between ID3 and E2A/E12.

S. no.	ID3	E2A	Distance (Å)
Hydrogen bonds
1	A:ARG 60[N]	B:GLN 577[OE1]	2.78
2	A:GLN 66[HE22]	B:ALA 595[O]	2.68
3	A:GLU 53[OE1]	B:LYS 570[HZ3]	2.65
4	A:GLU 53[OE2]	B:ARG 563[HH22]	2.72
5	A:GLU 53[O]	B:LYS 570[N]	3.02
6	A:PRO 56[O]	B:LYS 570[HZ1]	2.79
7	A:GLN 66[OE1]	B:LEU 600[N]	3.80
8	A:GLN 66[OE1]	B:VAL 598[N]	2.71
9	A:GLN 66[OE1]	B:ILE 599[N]	2.81
Salt bridges
1	A:GLU 53[OE1]	B:LYS 570[NZ]	2.65
2	A:GLU 53[OE2]	B:LYS 570[NZ]	3.76
3	A:GLU 53[OE2]	B:ARG 563[NH1]	3.80
4	A:GLU 53[OE2]	B:ARG 563[NH2]	2.72