Analysis of interatomic Contacts of Structural Units in PDB entry:
4IS4


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 4IS4 entry

There are 5 chains in PDB entry 4IS4 (CSU analysis of residue contacts immediately below table)
Chain ID Initial residueTerminal residue
A
 MET 1PRO 356
B
 MET 1LEU 353
C
 MET 1PRO 356
D
 MET 1PRO 356
E
 MET 1TRP 25
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 are104 helices in PDB entry 4IS4. Click on helix of interest for CSU analysis.
Helix
number 		Helix
ID		Chain
ID		 Initial
residue		Terminal
residue		 Helix class
Helix 1
1
A
1 9Right-handed alpha
Helix 2
2
A
11 15Right-handed 310
Helix 3
3
A
46 50Right-handed 310
Helix 4
4
A
106 116Right-handed alpha
Helix 5
5
A
116 121Right-handed alpha
Helix 6
6
A
168 183Right-handed alpha
Helix 7
7
A
207 229Right-handed alpha
Helix 8
8
A
254 259Right-handed alpha
Helix 9
9
A
261 284Right-handed alpha
Helix 10
10
A
318 325Right-handed alpha
Helix 11
11
A
339 353Right-handed alpha
Helix 12
12
B
2 9Right-handed alpha
Helix 13
13
B
11 15Right-handed 310
Helix 14
14
B
46 50Right-handed 310
Helix 15
15
B
58 60Right-handed 310
Helix 16
16
B
106 116Right-handed alpha
Helix 17
17
B
116 121Right-handed alpha
Helix 18
18
B
168 183Right-handed alpha
Helix 19
19
B
208 229Right-handed alpha
Helix 20
20
B
254 259Right-handed alpha
Helix 21
21
B
262 277Right-handed alpha
Helix 22
22
B
339 353Right-handed alpha
Helix 23
23
C
2 9Right-handed alpha
Helix 24
24
C
11 15Right-handed 310
Helix 25
25
C
46 50Right-handed 310
Helix 26
26
C
106 116Right-handed alpha
Helix 27
27
C
116 121Right-handed alpha
Helix 28
28
C
168 183Right-handed alpha
Helix 29
29
C
208 229Right-handed alpha
Helix 30
30
C
254 259Right-handed alpha
Helix 31
31
C
262 277Right-handed alpha
Helix 32
32
C
339 353Right-handed alpha
Helix 33
33
D
2 9Right-handed alpha
Helix 34
34
D
11 15Right-handed 310
Helix 35
35
D
46 50Right-handed 310
Helix 36
36
D
106 116Right-handed alpha
Helix 37
37
D
116 121Right-handed alpha
Helix 38
38
D
168 183Right-handed alpha
Helix 39
39
D
208 229Right-handed alpha
Helix 40
40
D
254 259Right-handed alpha
Helix 41
41
D
261 276Right-handed alpha
Helix 42
42
D
339 353Right-handed alpha
Helix 43
43
E
2 9Right-handed alpha
Helix 44
44
E
11 15Right-handed 310
Helix 45
45
E
46 50Right-handed 310
Helix 46
46
E
64 67Right-handed 310
Helix 47
47
E
106 116Right-handed alpha
Helix 48
48
E
116 121Right-handed alpha
Helix 49
49
E
168 183Right-handed alpha
Helix 50
50
E
207 229Right-handed alpha
Helix 51
51
E
266 276Right-handed alpha
Helix 52
52
E
339 353Right-handed alpha
Helix 53
53
F
2 9Right-handed alpha
Helix 54
54
F
11 15Right-handed 310
Helix 55
55
F
46 50Right-handed 310
Helix 56
56
F
58 60Right-handed 310
Helix 57
57
F
106 116Right-handed alpha
Helix 58
58
F
116 121Right-handed alpha
Helix 59
59
F
168 183Right-handed alpha
Helix 60
60
F
208 229Right-handed alpha
Helix 61
61
F
254 259Right-handed alpha
Helix 62
62
F
261 277Right-handed alpha
Helix 63
63
F
339 353Right-handed alpha
Helix 64
64
G
2 9Right-handed alpha
Helix 65
65
G
11 15Right-handed 310
Helix 66
66
G
46 50Right-handed 310
Helix 67
67
G
106 116Right-handed alpha
Helix 68
68
G
116 121Right-handed alpha
Helix 69
69
G
168 183Right-handed alpha
Helix 70
70
G
207 229Right-handed alpha
Helix 71
71
G
254 259Right-handed alpha
Helix 72
72
G
263 277Right-handed alpha
Helix 73
73
G
339 353Right-handed alpha
Helix 74
74
H
2 9Right-handed alpha
Helix 75
75
H
11 15Right-handed 310
Helix 76
76
H
46 50Right-handed 310
Helix 77
77
H
58 60Right-handed 310
Helix 78
78
H
106 116Right-handed alpha
Helix 79
79
H
116 121Right-handed alpha
Helix 80
80
H
168 183Right-handed alpha
Helix 81
81
H
207 229Right-handed alpha
Helix 82
82
H
263 277Right-handed alpha
Helix 83
83
H
339 353Right-handed alpha
Helix 84
84
I
2 9Right-handed alpha
Helix 85
85
I
11 15Right-handed 310
Helix 86
86
I
46 50Right-handed 310
Helix 87
87
I
58 60Right-handed 310
Helix 88
88
I
106 116Right-handed alpha
Helix 89
89
I
116 121Right-handed alpha
Helix 90
90
I
168 183Right-handed alpha
Helix 91
91
I
207 229Right-handed alpha
Helix 92
92
I
254 259Right-handed alpha
Helix 93
93
I
262 276Right-handed alpha
Helix 94
94
I
339 353Right-handed alpha
Helix 95
95
J
2 9Right-handed alpha
Helix 96
96
J
11 15Right-handed 310
Helix 97
97
J
46 50Right-handed 310
Helix 98
98
J
106 116Right-handed alpha
Helix 99
99
J
116 121Right-handed alpha
Helix 100
100
J
168 183Right-handed alpha
Helix 101
101
J
208 229Right-handed alpha
Helix 102
102
J
254 259Right-handed alpha
Helix 103
103
J
262 276Right-handed alpha
Helix 104
104
J
339 353Right-handed alpha
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There are 20 sheets in PDB entry 4IS4. 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,

There are 9 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
53 56first strand
Strand 2
A
69 79anti-parallel
Strand 3
A
88 95anti-parallel
Strand 4
A
19 26parallel
Strand 5
A
33 40anti-parallel
Strand 6
B
186 191anti-parallel
Strand 7
B
197 206anti-parallel
Strand 8
B
125 135anti-parallel
Strand 9
B
231 233anti-parallel
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There are 10 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
53 56first strand
Strand 2
A
69 79anti-parallel
Strand 3
A
88 95anti-parallel
Strand 4
A
19 26parallel
Strand 5
A
33 40anti-parallel
Strand 6
B
186 191anti-parallel
Strand 7
B
197 206anti-parallel
Strand 8
B
125 135anti-parallel
Strand 9
B
250 253anti-parallel
Strand 10
B
329 331anti-parallel
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There are 6 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
230 233first strand
Strand 2
A
125 136anti-parallel
Strand 3
A
250 253anti-parallel
Strand 4
A
329 331anti-parallel
Strand 5
A
315 316anti-parallel
Strand 6
A
306 307parallel
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There are 9 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
230 233first strand
Strand 2
A
125 136anti-parallel
Strand 3
A
197 206anti-parallel
Strand 4
A
186 191anti-parallel
Strand 5
E
33 40anti-parallel
Strand 6
E
19 26anti-parallel
Strand 7
E
88 95parallel
Strand 8
E
69 79anti-parallel
Strand 9
E
53 56anti-parallel
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There are 9 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
53 56first strand
Strand 2
B
69 79anti-parallel
Strand 3
B
88 95anti-parallel
Strand 4
B
19 26parallel
Strand 5
B
33 40anti-parallel
Strand 6
C
186 191anti-parallel
Strand 7
C
197 206anti-parallel
Strand 8
C
125 136anti-parallel
Strand 9
C
230 233anti-parallel
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There are 11 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
53 56first strand
Strand 2
B
69 79anti-parallel
Strand 3
B
88 95anti-parallel
Strand 4
B
19 26parallel
Strand 5
B
33 40anti-parallel
Strand 6
C
186 191anti-parallel
Strand 7
C
197 206anti-parallel
Strand 8
C
125 136anti-parallel
Strand 9
C
250 253anti-parallel
Strand 10
C
329 331anti-parallel
Strand 11
C
315 316anti-parallel
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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
C
53 56first strand
Strand 2
C
69 79anti-parallel
Strand 3
C
88 95anti-parallel
Strand 4
C
19 26parallel
Strand 5
C
33 40anti-parallel
Strand 6
D
186 191anti-parallel
Strand 7
D
197 206anti-parallel
Strand 8
D
125 136anti-parallel
Strand 9
D
230 233anti-parallel
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There are 10 strands in H sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
C
53 56first strand
Strand 2
C
69 79anti-parallel
Strand 3
C
88 95anti-parallel
Strand 4
C
19 26parallel
Strand 5
C
33 40anti-parallel
Strand 6
D
186 191anti-parallel
Strand 7
D
197 206anti-parallel
Strand 8
D
125 136anti-parallel
Strand 9
D
250 253anti-parallel
Strand 10
D
329 331anti-parallel
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There are 9 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
53 56first strand
Strand 2
D
69 79anti-parallel
Strand 3
D
88 95anti-parallel
Strand 4
D
19 26parallel
Strand 5
D
33 40anti-parallel
Strand 6
E
186 191anti-parallel
Strand 7
E
197 206anti-parallel
Strand 8
E
125 136anti-parallel
Strand 9
E
230 233anti-parallel
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There are 9 strands in J sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
D
53 56first strand
Strand 2
D
69 79anti-parallel
Strand 3
D
88 95anti-parallel
Strand 4
D
19 26parallel
Strand 5
D
33 40anti-parallel
Strand 6
E
186 191anti-parallel
Strand 7
E
197 206anti-parallel
Strand 8
E
125 136anti-parallel
Strand 9
E
250 253anti-parallel
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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
F
53 56first strand
Strand 2
F
69 79anti-parallel
Strand 3
F
88 95anti-parallel
Strand 4
F
19 26parallel
Strand 5
F
33 40anti-parallel
Strand 6
J
186 191anti-parallel
Strand 7
J
197 206anti-parallel
Strand 8
J
125 135anti-parallel
Strand 9
J
231 233anti-parallel
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There are 10 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
53 56first strand
Strand 2
F
69 79anti-parallel
Strand 3
F
88 95anti-parallel
Strand 4
F
19 26parallel
Strand 5
F
33 40anti-parallel
Strand 6
J
186 191anti-parallel
Strand 7
J
197 206anti-parallel
Strand 8
J
125 135anti-parallel
Strand 9
J
250 253anti-parallel
Strand 10
J
329 331anti-parallel
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There are 5 strands in M sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
F
230 233first strand
Strand 2
F
125 136anti-parallel
Strand 3
F
250 253anti-parallel
Strand 4
F
329 331anti-parallel
Strand 5
F
315 316anti-parallel
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There are 9 strands in N sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
F
230 233first strand
Strand 2
F
125 136anti-parallel
Strand 3
F
197 206anti-parallel
Strand 4
F
186 191anti-parallel
Strand 5
G
33 40anti-parallel
Strand 6
G
19 26anti-parallel
Strand 7
G
88 95parallel
Strand 8
G
69 79anti-parallel
Strand 9
G
53 56anti-parallel
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There are 5 strands in O sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
G
230 233first strand
Strand 2
G
125 136anti-parallel
Strand 3
G
250 253anti-parallel
Strand 4
G
329 331anti-parallel
Strand 5
G
315 316anti-parallel
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There are 9 strands in P sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
G
230 233first strand
Strand 2
G
125 136anti-parallel
Strand 3
G
197 206anti-parallel
Strand 4
G
186 191anti-parallel
Strand 5
H
33 40anti-parallel
Strand 6
H
19 26anti-parallel
Strand 7
H
88 95parallel
Strand 8
H
69 79anti-parallel
Strand 9
H
53 56anti-parallel
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There are 4 strands in Q sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
H
230 233first strand
Strand 2
H
125 136anti-parallel
Strand 3
H
250 253anti-parallel
Strand 4
H
329 331anti-parallel
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There are 9 strands in R sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
H
230 233first strand
Strand 2
H
125 136anti-parallel
Strand 3
H
197 206anti-parallel
Strand 4
H
186 191anti-parallel
Strand 5
I
33 40anti-parallel
Strand 6
I
19 26anti-parallel
Strand 7
I
88 95parallel
Strand 8
I
69 79anti-parallel
Strand 9
I
53 56anti-parallel
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There are 4 strands in S sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
I
230 233first strand
Strand 2
I
125 136anti-parallel
Strand 3
I
250 253anti-parallel
Strand 4
I
329 330anti-parallel
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There are 9 strands in T sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
I
230 233first strand
Strand 2
I
125 136anti-parallel
Strand 3
I
197 206anti-parallel
Strand 4
I
186 191anti-parallel
Strand 5
J
33 40anti-parallel
Strand 6
J
19 26anti-parallel
Strand 7
J
88 95parallel
Strand 8
J
69 79anti-parallel
Strand 9
J
53 56anti-parallel
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Please mail questions/suggestions concerning this page to Vladimir.Sobolev@weizmann. ac.il