Structural features of residue 20 in chain B

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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|       20|      B|         T|       49|      A|
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Protrusion Index:
SER B 20 N	0.51
SER B 20 CA	0.63
SER B 20 C	0.67
SER B 20 O	0.48
SER B 20 CB	0.80
SER B 20 OG	0.97