Structural features of residue 16 in chain A

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Electrostatic Interactions:
ASP A 15 OD1	HIS A 16 ND1	-2.081	INTRA-CHAIN
ASP A 15 OD2	HIS A 16 ND1	-2.147	INTRA-CHAIN
HIS A 16 ND1	ASP A 15 OD1	-2.081	INTRA-CHAIN
HIS A 16 ND1	ASP B 15 OD1	-1.358	INTER-CHAIN
HIS A 16 ND1	ASP A 19 OD1	-2.762	INTRA-CHAIN
HIS A 16 ND1	ARG B 28 NH1	2.505	INTER-CHAIN
HIS A 16 ND1	ASP B 90 OD1	-1.589	INTER-CHAIN
HIS A 16 ND1	HIS B 121 ND1	0.734	INTER-CHAIN
HIS A 16 NE2	ASP A 15 OD1	-1.789	INTRA-CHAIN
HIS A 16 NE2	ASP B 15 OD1	-1.368	INTER-CHAIN
HIS A 16 NE2	ASP A 19 OD1	-2.285	INTRA-CHAIN
HIS A 16 NE2	ASP B 19 OD1	-1.386	INTER-CHAIN
HIS A 16 NE2	ARG B 28 NH1	2.939	INTER-CHAIN
HIS A 16 NE2	ASP B 90 OD1	-1.816	INTER-CHAIN
ASP A 19 OD1	HIS A 16 ND1	-2.762	INTRA-CHAIN
ASP A 19 OD2	HIS A 16 ND1	-3.437	INTRA-CHAIN
ASP B 15 OD1	HIS A 16 ND1	-1.358	INTER-CHAIN
ARG B 28 NH1	HIS A 16 NE2	2.939	INTER-CHAIN
ARG B 28 NH2	HIS A 16 NE2	3.105	INTER-CHAIN
ASP B 90 OD1	HIS A 16 ND1	-1.589	INTER-CHAIN
ASP B 90 OD2	HIS A 16 ND1	-1.510	INTER-CHAIN
HIS B 121 ND1	HIS A 16 ND1	0.734	INTER-CHAIN

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Hydrogen bonds:

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|Res1 type| Res1 No.| Chain1| Res2 type| Res2 No.| Chain2|
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|        H|       16|      A|         F|       91|      B|
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Protrusion Index:
HIS A 16 N	0.75
HIS A 16 CA	0.46
HIS A 16 C	0.42
HIS A 16 O	0.36
HIS A 16 CB	0.37
HIS A 16 CG	0.23
HIS A 16 ND1	0.19
HIS A 16 CD2	0.18
HIS A 16 CE1	0.14
HIS A 16 NE2	0.11

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Salt bridges:
ASP A 15	HIS A 16	2.221	INTRA-CHAIN