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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|        Y|        4|      A|         L|       16|      B|
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|        R|       18|      B|         Y|        4|      A|
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Hydrophobic Interactions:
ILE A 3	TYR A 4	Dist=5.989	INTRA-CHAIN
TYR A 4	LEU A 9	Dist=4.506	INTRA-CHAIN

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Protrusion Index:
TYR A 4 N	0.42
TYR A 4 CA	0.48
TYR A 4 C	0.43
TYR A 4 O	0.41
TYR A 4 CB	0.38
TYR A 4 CG	0.46
TYR A 4 CD1	0.49
TYR A 4 CD2	0.34
TYR A 4 CE1	0.58
TYR A 4 CE2	0.38
TYR A 4 CZ	0.54
TYR A 4 OH	0.71