Table 2.

Residues and nature of molecular forces involved in intersubunit interactions

S.n	A chain	B chain	Nature of interaction
Between two adjacent monomers
1	E24	R125	Salt bridge
2	M26, L27, F31, Y104	P56, I57, M58, P59, Y131	Hydrophobic
3	Main chain O-atom of Y104	N134	Hydrogen bond
4	Q178	T181	Hydrogen bond
5	D143	H158	Salt bridge
Between two trimers
	Trimer 1	Trimer 2	Nature of interaction
1	Y47	I61	Hydrophobic
2	S29	P25, M26, A28, S29	Hydrogen bond