Structural features of residue 121 in chain B
1	ARG B 121 NH1	3.087	INTER-CHAIN
ARG A 23 NH1	ARG B 121 NH2	3.289	INTER-CHAIN
ARG A 23 NH2	ARG B 121 NH2	3.056	INTER-CHAIN
HIS A 28 ND1	ARG B 121 NH1	6.188	INTER-CHAIN
HIS A 28 NE2	ARG B 121 NH1	5.879	INTER-CHAIN
ARG B 32 NH1	ARG B 121 NH1	3.763	INTRA-CHAIN
ARG B 32 NH1	ARG B 121 NH2	4.016	INTRA-CHAIN
ARG B 32 NH2	ARG B 121 NH1	3.269	INTRA-CHAIN
ARG B 32 NH2	ARG B 121 NH2	3.414	INTRA-CHAIN
ARG B 121 NH1	ARG A 23 NH1	3.087	INTER-CHAIN
ARG B 121 NH1	HIS A 28 NE2	5.879	INTER-CHAIN
ARG B 121 NH1	ARG B 32 NH1	3.763	INTRA-CHAIN
ARG B 121 NH1	ARG B 32 NH2	3.269	INTRA-CHAIN
ARG B 121 NH1	ARG B 123 NH1	3.061	INTRA-CHAIN
ARG B 121 NH2	ARG A 23 NH1	3.289	INTER-CHAIN
ARG B 121 NH2	ARG A 23 NH2	3.056	INTER-CHAIN
ARG B 121 NH2	HIS A 28 NE2	6.248	INTER-CHAIN
ARG B 121 NH2	ARG B 32 NH1	4.016	INTRA-CHAIN
ARG B 121 NH2	ARG B 32 NH2	3.414	INTRA-CHAIN
ARG B 121 NH2	ARG B 123 NH1	3.036	INTRA-CHAIN
ARG B 123 NH1	ARG B 121 NH1	3.061	INTRA-CHAIN
ARG B 123 NH1	ARG B 121 NH2	3.036	INTRA-CHAIN

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Hydrogen bonds:

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|Res1 type| Res1 No.| Chain1| Res2 type| Res2 No.| Chain2|
----------------------------------------------------------
|        R|      121|      B|         D|       73|      A|
----------------------------------------------------------

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Protrusion Index:
ARG B 121 N	0.77
ARG B 121 CA	0.88
ARG B 121 C	1.27
ARG B 121 O	1.42
ARG B 121 CB	0.78
ARG B 121 CG	0.48
ARG B 121 CD	0.51
ARG B 121 NE	0.36
ARG B 121 CZ	0.50
ARG B 121 NH1	0.74
ARG B 121 NH2	0.34

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Van der Waal's Interactions:
GLU A 24 OE2 130	ARG B 121 NH2 1797	-0.032	INTER-CHAIN
VAL A 25 CG2 137	ARG B 121 NH2 1797	-0.403	INTER-CHAIN
HIS A 28 NE2 164	ARG B 121 NH2 1797	-0.052	INTER-CHAIN
VAL B 117 CG2 1764	ARG B 121 NH2 1797	-0.011	INTRA-CHAIN
LEU B 118 CD2 1772	ARG B 121 NH2 1797	-0.046	INTRA-CHAIN