Structural features of residue 4 in chain A

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Hydrogen bonds:

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|Res1 type| Res1 No.| Chain1| Res2 type| Res2 No.| Chain2|
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|        S|        4|      A|         G|      116|      B|
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Protrusion Index:
SER A 4 N	0.57
SER A 4 CA	0.59
SER A 4 C	0.43
SER A 4 O	0.41
SER A 4 CB	0.97
SER A 4 OG	0.98