Analysis of interatomic Contacts of Structural Units in PDB entry:
3NIO


Contacts of Structural Units (CSU) are derived with the CSU software (Sobolev V., Sorokine A., Prilusky J., Abola E.E. and Edelman M. (1999) Automated analysis of interatomic contacts in proteins. Bioinformatics, 15, 327-332).
For CSU analysis of other PDB entry

This page provides analyses of contacts formed by:
For analysis of ligand-protein contacts, use: 3D structure can be seen in additional window with STING software for 3NIO entry

There are 48 chains in PDB entry 3NIO (CSU analysis of residue contacts immediately below table)
Chain ID Initial residueTerminal residue
A
 ASN 4ILE 139
A
 LYS 141LYS 141
A
 HIS 143GLY 144
A
 VAL 146GLU 164
A
 ILE 166ARG 205
A
 GLN 207HIS 219
A
 SER 221GLU 231
A
 VAL 233ARG 319
B
 ASN 4ILE 139
B
 LYS 141LYS 141
B
 HIS 143GLY 144
B
 VAL 146GLU 164
B
 ILE 166ARG 205
B
 GLN 207HIS 219
B
 SER 221GLU 231
B
 VAL 233ARG 319
C
 ASN 4ILE 139
C
 LYS 141LYS 141
C
 HIS 143GLY 144
C
 VAL 146GLU 164
C
 ILE 166ARG 205
C
 GLN 207HIS 219
C
 SER 221GLU 231
C
 VAL 233ARG 319
D
 ASN 4ILE 139
D
 LYS 141LYS 141
D
 HIS 143GLY 144
D
 VAL 146GLU 164
D
 ILE 166ARG 205
D
 GLN 207HIS 219
D
 SER 221GLU 231
D
 VAL 233ARG 319
E
 ASN 4ILE 139
E
 LYS 141LYS 141
E
 HIS 143GLY 144
E
 VAL 146GLU 164
E
 ILE 166ARG 205
E
 GLN 207HIS 219
E
 SER 221GLU 231
E
 VAL 233ARG 319
F
 ASN 4ILE 139
F
 LYS 141LYS 141
F
 HIS 143GLY 144
F
 VAL 146GLU 164
F
 ILE 166ARG 205
F
 GLN 207HIS 219
F
 SER 221GLU 231
F
 VAL 233ARG 319
Residue contacts

1. List of contacts for up to 10 consecutive residues:
Chain ID from residue number to residue number


2. Detailed analyses of contacts for any single residue:
Residue number chain ID
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There are101 helices in PDB entry 3NIO. Click on helix of interest for CSU analysis.
Helix
number 		Helix
ID		Chain
ID		 Initial
residue		Terminal
residue		 Helix class
Helix 1
1
A
22 26Right-handed 310
Helix 2
2
A
31 36Right-handed alpha
Helix 3
3
A
56 58Right-handed 310
Helix 4
4
A
59 68Right-handed alpha
Helix 5
5
A
69 71Right-handed 310
Helix 6
6
A
81 85Right-handed 310
Helix 7
7
A
100 118Right-handed alpha
Helix 8
8
A
128 130Right-handed 310
Helix 9
9
A
131 144Right-handed alpha
Helix 10
10
A
170 178Right-handed alpha
Helix 11
11
A
198 208Right-handed alpha
Helix 12
12
A
215 217Right-handed 310
Helix 13
13
A
222 234Right-handed alpha
Helix 14
14
A
245 247Right-handed 310
Helix 15
15
A
264 274Right-handed alpha
Helix 16
16
A
289 293Right-handed 310
Helix 17
17
A
296 312Right-handed alpha
Helix 18
18
B
22 26Right-handed 310
Helix 19
19
B
31 36Right-handed alpha
Helix 20
20
B
56 58Right-handed 310
Helix 21
21
B
59 68Right-handed alpha
Helix 22
22
B
69 71Right-handed 310
Helix 23
23
B
81 85Right-handed 310
Helix 24
24
B
100 118Right-handed alpha
Helix 25
25
B
128 130Right-handed 310
Helix 26
26
B
131 144Right-handed alpha
Helix 27
27
B
170 178Right-handed alpha
Helix 28
28
B
198 208Right-handed alpha
Helix 29
29
B
215 217Right-handed 310
Helix 30
30
B
222 234Right-handed alpha
Helix 31
31
B
245 247Right-handed 310
Helix 32
32
B
264 274Right-handed alpha
Helix 33
33
B
289 293Right-handed 310
Helix 34
34
B
296 312Right-handed alpha
Helix 35
35
C
22 26Right-handed 310
Helix 36
36
C
31 36Right-handed alpha
Helix 37
37
C
56 58Right-handed 310
Helix 38
38
C
59 68Right-handed alpha
Helix 39
39
C
81 85Right-handed 310
Helix 40
40
C
100 118Right-handed alpha
Helix 41
41
C
128 130Right-handed 310
Helix 42
42
C
131 144Right-handed alpha
Helix 43
43
C
170 178Right-handed alpha
Helix 44
44
C
198 208Right-handed alpha
Helix 45
45
C
215 217Right-handed 310
Helix 46
46
C
222 234Right-handed alpha
Helix 47
47
C
245 247Right-handed 310
Helix 48
48
C
264 274Right-handed alpha
Helix 49
49
C
289 293Right-handed 310
Helix 50
50
C
296 312Right-handed alpha
Helix 51
51
D
22 26Right-handed 310
Helix 52
52
D
31 36Right-handed alpha
Helix 53
53
D
56 58Right-handed 310
Helix 54
54
D
59 68Right-handed alpha
Helix 55
55
D
69 71Right-handed 310
Helix 56
56
D
81 85Right-handed 310
Helix 57
57
D
100 118Right-handed alpha
Helix 58
58
D
128 130Right-handed 310
Helix 59
59
D
131 144Right-handed alpha
Helix 60
60
D
170 178Right-handed alpha
Helix 61
61
D
198 208Right-handed alpha
Helix 62
62
D
215 217Right-handed 310
Helix 63
63
D
222 234Right-handed alpha
Helix 64
64
D
245 247Right-handed 310
Helix 65
65
D
264 274Right-handed alpha
Helix 66
66
D
289 293Right-handed 310
Helix 67
67
D
296 312Right-handed alpha
Helix 68
68
E
22 26Right-handed 310
Helix 69
69
E
31 36Right-handed alpha
Helix 70
70
E
56 58Right-handed 310
Helix 71
71
E
59 68Right-handed alpha
Helix 72
72
E
69 71Right-handed 310
Helix 73
73
E
81 85Right-handed 310
Helix 74
74
E
100 118Right-handed alpha
Helix 75
75
E
128 130Right-handed 310
Helix 76
76
E
131 144Right-handed alpha
Helix 77
77
E
170 178Right-handed alpha
Helix 78
78
E
198 208Right-handed alpha
Helix 79
79
E
215 217Right-handed 310
Helix 80
80
E
222 234Right-handed alpha
Helix 81
81
E
245 247Right-handed 310
Helix 82
82
E
264 274Right-handed alpha
Helix 83
83
E
289 293Right-handed 310
Helix 84
84
E
296 312Right-handed alpha
Helix 85
85
F
22 26Right-handed 310
Helix 86
86
F
31 36Right-handed alpha
Helix 87
87
F
56 58Right-handed 310
Helix 88
88
F
59 68Right-handed alpha
Helix 89
89
F
69 71Right-handed 310
Helix 90
90
F
81 85Right-handed 310
Helix 91
91
F
100 118Right-handed alpha
Helix 92
92
F
128 130Right-handed 310
Helix 93
93
F
131 144Right-handed alpha
Helix 94
94
F
170 178Right-handed alpha
Helix 95
95
F
198 208Right-handed alpha
Helix 96
96
F
215 217Right-handed 310
Helix 97
97
F
224 234Right-handed alpha
Helix 98
98
F
245 247Right-handed 310
Helix 99
99
F
264 274Right-handed alpha
Helix 100
100
F
289 293Right-handed 310
Helix 101
101
F
296 312Right-handed alpha
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There are 12 sheets in PDB entry 3NIO. Click on sheet of interest to get list of strands forming it: A, B, C, D, E, F, G, H, I, J, K, L,

There are 8 strands in A sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
A
88 93first strand
Strand 2
A
40 44parallel
Strand 3
A
121 125parallel
Strand 4
A
279 286parallel
Strand 5
A
237 243parallel
Strand 6
A
146 151parallel
Strand 7
A
181 191parallel
Strand 8
A
210 213parallel
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There are 2 strands in B sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
A
74 75first strand
Strand 2
B
194 195anti-parallel
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There are 2 strands in C sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
A
194 195first strand
Strand 2
C
74 75anti-parallel
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There are 8 strands in D sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
B
88 93first strand
Strand 2
B
40 44parallel
Strand 3
B
121 125parallel
Strand 4
B
279 286parallel
Strand 5
B
237 243parallel
Strand 6
B
146 151parallel
Strand 7
B
181 191parallel
Strand 8
B
210 213parallel
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There are 2 strands in E sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
B
74 75first strand
Strand 2
C
194 195anti-parallel
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There are 8 strands in F sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
C
88 93first strand
Strand 2
C
40 44parallel
Strand 3
C
121 125parallel
Strand 4
C
279 286parallel
Strand 5
C
237 243parallel
Strand 6
C
146 151parallel
Strand 7
C
181 191parallel
Strand 8
C
210 213parallel
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There are 8 strands in G sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
D
88 93first strand
Strand 2
D
40 44parallel
Strand 3
D
121 125parallel
Strand 4
D
279 286parallel
Strand 5
D
237 243parallel
Strand 6
D
146 151parallel
Strand 7
D
181 191parallel
Strand 8
D
210 213parallel
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There are 2 strands in H sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
D
74 75first strand
Strand 2
E
194 195anti-parallel
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There are 2 strands in I sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
D
194 195first strand
Strand 2
F
74 75anti-parallel
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There are 8 strands in J sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
E
88 93first strand
Strand 2
E
40 44parallel
Strand 3
E
121 125parallel
Strand 4
E
279 286parallel
Strand 5
E
237 243parallel
Strand 6
E
146 151parallel
Strand 7
E
181 191parallel
Strand 8
E
210 213parallel
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There are 2 strands in K sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
E
74 75first strand
Strand 2
F
194 195anti-parallel
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There are 8 strands in L sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
F
88 93first strand
Strand 2
F
40 44parallel
Strand 3
F
121 125parallel
Strand 4
F
279 286parallel
Strand 5
F
237 243parallel
Strand 6
F
146 151parallel
Strand 7
F
181 191parallel
Strand 8
F
210 213parallel
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