Table 5. PISA analysis of the H-bonding and salt-bridge interactions among the residues participating in KGF-KITLG binding interface,

S.No.	KGF	Dist.[Å]	KITLG
Hydrogen bonds
1	LYS 140[HZ3]	1.77	SER 226[OG]
2	LYS 155[HZ3]	1.72	PHE 233[O]
3	LYS 123[HZ2]	1.63	GLY 234[O]
4	LYS 123[HZ1]	2.37	PHE 236[O]
5	GLU 135[OE2]	3.03	TRP 238[N]
6	GLU 135[OE2]	1.57	LYS 239[HZ2]
7	TRP 156[O]	3.38	ALA 235[N]
Salt bridges
1	Glu 135[OE2]	2.58	LYS 239[NZ]