Structural features of residue 21 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|       21|      A|         S|       21|      B|
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|        S|       22|      A|         S|       21|      B|
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Protrusion Index:
SER B 21 N	0.91
SER B 21 CA	0.84
SER B 21 C	0.91
SER B 21 O	1.22
SER B 21 CB	0.71
SER B 21 OG	0.84

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Van der Waal's Interactions:
SER B 20 OG 1098	SER B 21 OG 1104	-0.020	INTRA-CHAIN
SER B 21 OG 1104	SER A 22 OG 161	-0.049	INTER-CHAIN