Analysis of interatomic Contacts of Structural Units in PDB entry:
4IHC


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 4IHC entry

There are 8 chains in PDB entry 4IHC (CSU analysis of residue contacts immediately below table)
Chain ID Initial residueTerminal residue
A
 LYS 3PRO 417
B
 LYS 3PRO 417
C
 LYS 3PRO 417
D
 LYS 3PRO 417
E
 LYS 3PRO 417
F
 LYS 3PRO 417
G
 LYS 3PRO 417
H
 LYS 3PRO 417
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 are144 helices in PDB entry 4IHC. Click on helix of interest for CSU analysis.
Helix
number 		Helix
ID		Chain
ID		 Initial
residue		Terminal
residue		 Helix class
Helix 1
1
A
41 43Right-handed 310
Helix 2
2
A
44 55Right-handed alpha
Helix 3
3
A
55 61Right-handed alpha
Helix 4
4
A
67 77Right-handed alpha
Helix 5
5
A
84 107Right-handed alpha
Helix 6
6
A
109 114Right-handed alpha
Helix 7
7
A
132 146Right-handed alpha
Helix 8
8
A
195 215Right-handed alpha
Helix 9
9
A
229 241Right-handed alpha
Helix 10
10
A
242 244Right-handed 310
Helix 11
11
A
253 258Right-handed 310
Helix 12
12
A
259 267Right-handed alpha
Helix 13
13
A
279 289Right-handed alpha
Helix 14
14
A
298 303Right-handed 310
Helix 15
15
A
304 318Right-handed alpha
Helix 16
16
A
331 345Right-handed alpha
Helix 17
17
A
357 364Right-handed alpha
Helix 18
18
A
388 393Right-handed alpha
Helix 19
19
B
41 43Right-handed 310
Helix 20
20
B
44 55Right-handed alpha
Helix 21
21
B
55 61Right-handed alpha
Helix 22
22
B
67 78Right-handed alpha
Helix 23
23
B
84 107Right-handed alpha
Helix 24
24
B
109 114Right-handed alpha
Helix 25
25
B
132 146Right-handed alpha
Helix 26
26
B
195 215Right-handed alpha
Helix 27
27
B
229 240Right-handed alpha
Helix 28
28
B
241 244Right-handed 310
Helix 29
29
B
253 258Right-handed 310
Helix 30
30
B
259 267Right-handed alpha
Helix 31
31
B
279 289Right-handed alpha
Helix 32
32
B
298 302Right-handed 310
Helix 33
33
B
304 318Right-handed alpha
Helix 34
34
B
331 345Right-handed alpha
Helix 35
35
B
357 364Right-handed alpha
Helix 36
36
B
388 394Right-handed alpha
Helix 37
37
C
41 43Right-handed 310
Helix 38
38
C
44 55Right-handed alpha
Helix 39
39
C
55 61Right-handed alpha
Helix 40
40
C
67 77Right-handed alpha
Helix 41
41
C
84 107Right-handed alpha
Helix 42
42
C
109 114Right-handed alpha
Helix 43
43
C
132 146Right-handed alpha
Helix 44
44
C
195 215Right-handed alpha
Helix 45
45
C
229 240Right-handed alpha
Helix 46
46
C
241 244Right-handed 310
Helix 47
47
C
253 257Right-handed 310
Helix 48
48
C
258 267Right-handed alpha
Helix 49
49
C
279 289Right-handed alpha
Helix 50
50
C
298 303Right-handed 310
Helix 51
51
C
304 318Right-handed alpha
Helix 52
52
C
331 345Right-handed alpha
Helix 53
53
C
357 364Right-handed alpha
Helix 54
54
C
388 393Right-handed alpha
Helix 55
55
D
41 43Right-handed 310
Helix 56
56
D
44 55Right-handed alpha
Helix 57
57
D
55 61Right-handed alpha
Helix 58
58
D
67 78Right-handed alpha
Helix 59
59
D
84 107Right-handed alpha
Helix 60
60
D
109 114Right-handed alpha
Helix 61
61
D
132 146Right-handed alpha
Helix 62
62
D
195 215Right-handed alpha
Helix 63
63
D
229 240Right-handed alpha
Helix 64
64
D
241 244Right-handed 310
Helix 65
65
D
253 258Right-handed 310
Helix 66
66
D
259 267Right-handed alpha
Helix 67
67
D
279 289Right-handed alpha
Helix 68
68
D
299 303Right-handed 310
Helix 69
69
D
304 318Right-handed alpha
Helix 70
70
D
331 345Right-handed alpha
Helix 71
71
D
357 364Right-handed alpha
Helix 72
72
D
388 393Right-handed alpha
Helix 73
73
E
41 43Right-handed 310
Helix 74
74
E
44 55Right-handed alpha
Helix 75
75
E
55 61Right-handed alpha
Helix 76
76
E
67 78Right-handed alpha
Helix 77
77
E
84 107Right-handed alpha
Helix 78
78
E
109 114Right-handed alpha
Helix 79
79
E
132 146Right-handed alpha
Helix 80
80
E
195 215Right-handed alpha
Helix 81
81
E
229 240Right-handed alpha
Helix 82
82
E
241 244Right-handed 310
Helix 83
83
E
253 258Right-handed 310
Helix 84
84
E
259 267Right-handed alpha
Helix 85
85
E
279 289Right-handed alpha
Helix 86
86
E
298 303Right-handed 310
Helix 87
87
E
304 318Right-handed alpha
Helix 88
88
E
331 345Right-handed alpha
Helix 89
89
E
357 364Right-handed alpha
Helix 90
90
E
388 394Right-handed alpha
Helix 91
91
F
41 43Right-handed 310
Helix 92
92
F
44 55Right-handed alpha
Helix 93
93
F
55 61Right-handed alpha
Helix 94
94
F
67 78Right-handed alpha
Helix 95
95
F
84 107Right-handed alpha
Helix 96
96
F
109 114Right-handed alpha
Helix 97
97
F
132 146Right-handed alpha
Helix 98
98
F
195 215Right-handed alpha
Helix 99
99
F
229 240Right-handed alpha
Helix 100
100
F
241 244Right-handed 310
Helix 101
101
F
253 258Right-handed 310
Helix 102
102
F
259 264Right-handed alpha
Helix 103
103
F
279 289Right-handed alpha
Helix 104
104
F
298 303Right-handed 310
Helix 105
105
F
304 318Right-handed alpha
Helix 106
106
F
331 345Right-handed alpha
Helix 107
107
F
357 364Right-handed alpha
Helix 108
108
F
388 393Right-handed alpha
Helix 109
109
G
41 43Right-handed 310
Helix 110
110
G
44 55Right-handed alpha
Helix 111
111
G
55 61Right-handed alpha
Helix 112
112
G
67 77Right-handed alpha
Helix 113
113
G
84 107Right-handed alpha
Helix 114
114
G
109 114Right-handed alpha
Helix 115
115
G
132 147Right-handed alpha
Helix 116
116
G
195 215Right-handed alpha
Helix 117
117
G
229 241Right-handed alpha
Helix 118
118
G
242 244Right-handed 310
Helix 119
119
G
253 258Right-handed 310
Helix 120
120
G
259 265Right-handed alpha
Helix 121
121
G
279 289Right-handed alpha
Helix 122
122
G
298 303Right-handed 310
Helix 123
123
G
304 318Right-handed alpha
Helix 124
124
G
331 345Right-handed alpha
Helix 125
125
G
357 364Right-handed alpha
Helix 126
126
G
388 393Right-handed alpha
Helix 127
127
H
41 43Right-handed 310
Helix 128
128
H
44 55Right-handed alpha
Helix 129
129
H
55 61Right-handed alpha
Helix 130
130
H
67 77Right-handed alpha
Helix 131
131
H
84 107Right-handed alpha
Helix 132
132
H
109 114Right-handed alpha
Helix 133
133
H
132 146Right-handed alpha
Helix 134
134
H
195 215Right-handed alpha
Helix 135
135
H
229 241Right-handed alpha
Helix 136
136
H
242 244Right-handed 310
Helix 137
137
H
253 258Right-handed 310
Helix 138
138
H
259 267Right-handed alpha
Helix 139
139
H
279 289Right-handed alpha
Helix 140
140
H
298 303Right-handed 310
Helix 141
141
H
304 318Right-handed alpha
Helix 142
142
H
331 345Right-handed alpha
Helix 143
143
H
357 364Right-handed alpha
Helix 144
144
H
388 394Right-handed alpha
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There are 32 sheets in PDB entry 4IHC. Click on sheet of interest to get list of strands forming it: A, B, C, D, E, F, G, H, I, J, K, L, M, N, O, P, Q, R, S, T, U, V, W, X, Y, Z, AA, AB, AC, AD, AE, AF,

There are 3 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
6 14first strand
Strand 2
A
21 28anti-parallel
Strand 3
A
34 38anti-parallel
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There are 8 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
321 322first strand
Strand 2
A
294 295parallel
Strand 3
A
271 273parallel
Strand 4
A
247 249parallel
Strand 5
A
219 223parallel
Strand 6
A
150 155parallel
Strand 7
A
122 130parallel
Strand 8
A
351 352parallel
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There are 9 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
321 322first strand
Strand 2
A
294 295parallel
Strand 3
A
271 273parallel
Strand 4
A
247 249parallel
Strand 5
A
219 223parallel
Strand 6
A
150 155parallel
Strand 7
A
122 130parallel
Strand 8
A
374 376anti-parallel
Strand 9
A
369 371anti-parallel
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There are 2 strands in D sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
A
192 193first strand
Strand 2
A
407 408parallel
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There are 3 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
6 14first strand
Strand 2
B
21 28anti-parallel
Strand 3
B
34 38anti-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
B
321 322first strand
Strand 2
B
294 295parallel
Strand 3
B
271 273parallel
Strand 4
B
247 249parallel
Strand 5
B
219 223parallel
Strand 6
B
150 153parallel
Strand 7
B
122 128parallel
Strand 8
B
351 352parallel
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There are 9 strands in G sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
B
321 322first strand
Strand 2
B
294 295parallel
Strand 3
B
271 273parallel
Strand 4
B
247 249parallel
Strand 5
B
219 223parallel
Strand 6
B
150 153parallel
Strand 7
B
122 128parallel
Strand 8
B
374 376anti-parallel
Strand 9
B
369 371anti-parallel
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There are 3 strands in H sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
B
192 193first strand
Strand 2
B
407 408parallel
Strand 3
B
414 415anti-parallel
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There are 3 strands in I sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
C
6 14first strand
Strand 2
C
21 28anti-parallel
Strand 3
C
34 38anti-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
C
321 322first strand
Strand 2
C
294 295parallel
Strand 3
C
271 273parallel
Strand 4
C
247 249parallel
Strand 5
C
219 223parallel
Strand 6
C
150 153parallel
Strand 7
C
122 128parallel
Strand 8
C
351 352parallel
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There are 9 strands in K sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
C
321 322first strand
Strand 2
C
294 295parallel
Strand 3
C
271 273parallel
Strand 4
C
247 249parallel
Strand 5
C
219 223parallel
Strand 6
C
150 153parallel
Strand 7
C
122 128parallel
Strand 8
C
374 376anti-parallel
Strand 9
C
369 371anti-parallel
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There are 3 strands in L sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
C
192 193first strand
Strand 2
C
407 408parallel
Strand 3
C
414 415anti-parallel
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There are 3 strands in M sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
D
6 14first strand
Strand 2
D
21 28anti-parallel
Strand 3
D
34 38anti-parallel
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There are 8 strands in N sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
D
321 322first strand
Strand 2
D
294 295parallel
Strand 3
D
271 273parallel
Strand 4
D
247 249parallel
Strand 5
D
219 223parallel
Strand 6
D
150 153parallel
Strand 7
D
122 128parallel
Strand 8
D
351 352parallel
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There are 9 strands in O sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
D
321 322first strand
Strand 2
D
294 295parallel
Strand 3
D
271 273parallel
Strand 4
D
247 249parallel
Strand 5
D
219 223parallel
Strand 6
D
150 153parallel
Strand 7
D
122 128parallel
Strand 8
D
374 376anti-parallel
Strand 9
D
369 371anti-parallel
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There are 2 strands in P sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
D
192 193first strand
Strand 2
D
407 408parallel
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There are 3 strands in Q sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
E
6 14first strand
Strand 2
E
21 28anti-parallel
Strand 3
E
34 38anti-parallel
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There are 8 strands in R sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
E
321 322first strand
Strand 2
E
294 295parallel
Strand 3
E
271 273parallel
Strand 4
E
247 249parallel
Strand 5
E
219 223parallel
Strand 6
E
150 153parallel
Strand 7
E
122 128parallel
Strand 8
E
351 352parallel
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There are 9 strands in S sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
E
321 322first strand
Strand 2
E
294 295parallel
Strand 3
E
271 273parallel
Strand 4
E
247 249parallel
Strand 5
E
219 223parallel
Strand 6
E
150 153parallel
Strand 7
E
122 128parallel
Strand 8
E
374 376anti-parallel
Strand 9
E
369 371anti-parallel
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There are 3 strands in T sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
E
192 193first strand
Strand 2
E
407 408parallel
Strand 3
E
414 415anti-parallel
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There are 3 strands in U sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
F
6 14first strand
Strand 2
F
21 28anti-parallel
Strand 3
F
34 38anti-parallel
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There are 8 strands in V sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
F
321 322first strand
Strand 2
F
294 295parallel
Strand 3
F
271 273parallel
Strand 4
F
247 249parallel
Strand 5
F
219 223parallel
Strand 6
F
150 153parallel
Strand 7
F
122 128parallel
Strand 8
F
351 352parallel
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There are 9 strands in W sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
F
321 322first strand
Strand 2
F
294 295parallel
Strand 3
F
271 273parallel
Strand 4
F
247 249parallel
Strand 5
F
219 223parallel
Strand 6
F
150 153parallel
Strand 7
F
122 128parallel
Strand 8
F
374 376anti-parallel
Strand 9
F
369 371anti-parallel
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There are 3 strands in X sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
F
192 193first strand
Strand 2
F
407 408parallel
Strand 3
F
414 415anti-parallel
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There are 3 strands in Y sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
G
6 14first strand
Strand 2
G
21 28anti-parallel
Strand 3
G
34 38anti-parallel
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There are 8 strands in Z sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
G
321 322first strand
Strand 2
G
294 295parallel
Strand 3
G
271 273parallel
Strand 4
G
247 249parallel
Strand 5
G
219 223parallel
Strand 6
G
150 152parallel
Strand 7
G
122 127parallel
Strand 8
G
351 352parallel
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There are 9 strands in AA sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
G
321 322first strand
Strand 2
G
294 295parallel
Strand 3
G
271 273parallel
Strand 4
G
247 249parallel
Strand 5
G
219 223parallel
Strand 6
G
150 152parallel
Strand 7
G
122 127parallel
Strand 8
G
374 376anti-parallel
Strand 9
G
369 371anti-parallel
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There are 2 strands in AB sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
G
192 193first strand
Strand 2
G
407 408parallel
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There are 3 strands in AC sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
H
6 14first strand
Strand 2
H
21 28anti-parallel
Strand 3
H
34 38anti-parallel
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There are 8 strands in AD sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
H
321 322first strand
Strand 2
H
294 295parallel
Strand 3
H
271 273parallel
Strand 4
H
247 249parallel
Strand 5
H
219 223parallel
Strand 6
H
150 155parallel
Strand 7
H
122 130parallel
Strand 8
H
351 352parallel
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There are 9 strands in AE sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
H
321 322first strand
Strand 2
H
294 295parallel
Strand 3
H
271 273parallel
Strand 4
H
247 249parallel
Strand 5
H
219 223parallel
Strand 6
H
150 155parallel
Strand 7
H
122 130parallel
Strand 8
H
374 376anti-parallel
Strand 9
H
369 371anti-parallel
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There are 3 strands in AF sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
H
192 193first strand
Strand 2
H
407 408parallel
Strand 3
H
414 415anti-parallel
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