Structural features of residue 21 in chain D

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Hydrogen bonds:

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|Res1 type| Res1 No.| Chain1| Res2 type| Res2 No.| Chain2|
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|        K|       21|      D|         E|       55|      A|
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Protrusion Index:
LYS D 21 N	0.36
LYS D 21 CA	0.47
LYS D 21 C	0.71
LYS D 21 O	0.84
LYS D 21 CB	0.60
LYS D 21 CG	0.86
LYS D 21 CD	0.97
LYS D 21 CE	1.57
LYS D 21 NZ	1.71

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Salt bridges:
LYS D 21	ARG D 22	2.738	INTRA-CHAIN