Analysis of interatomic Contacts of Structural Units in PDB entry:
4IL2


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 4IL2 entry

There are 4 chains in PDB entry 4IL2 (CSU analysis of residue contacts immediately below table)
Chain ID Initial residueTerminal residue
A
 LYS 13TRP 415
B
 MET 12TRP 415
C
 MET 12TRP 415
D
 LYS 13SER 98
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 are 71 helices in PDB entry 4IL2. Click on helix of interest for CSU analysis.
Helix
number 		Helix
ID		Chain
ID		 Initial
residue		Terminal
residue		 Helix class
Helix 1
1
A
50 62Right-handed alpha
Helix 2
2
A
63 67Right-handed 310
Helix 3
3
A
73 85Right-handed alpha
Helix 4
4
A
90 112Right-handed alpha
Helix 5
5
A
115 120Right-handed alpha
Helix 6
6
A
138 152Right-handed alpha
Helix 7
7
A
195 203Right-handed alpha
Helix 8
8
A
203 214Right-handed alpha
Helix 9
9
A
229 240Right-handed alpha
Helix 10
10
A
241 244Right-handed 310
Helix 11
11
A
256 259Right-handed 310
Helix 12
12
A
260 265Right-handed alpha
Helix 13
13
A
279 282Right-handed 310
Helix 14
14
A
283 289Right-handed alpha
Helix 15
15
A
303 317Right-handed alpha
Helix 16
16
A
331 345Right-handed alpha
Helix 17
17
A
357 362Right-handed alpha
Helix 18
18
A
388 394Right-handed alpha
Helix 19
19
B
50 60Right-handed alpha
Helix 20
20
B
63 67Right-handed 310
Helix 21
21
B
73 85Right-handed alpha
Helix 22
22
B
90 112Right-handed alpha
Helix 23
23
B
115 121Right-handed alpha
Helix 24
24
B
138 152Right-handed alpha
Helix 25
25
B
195 203Right-handed alpha
Helix 26
26
B
203 214Right-handed alpha
Helix 27
27
B
229 240Right-handed alpha
Helix 28
28
B
241 244Right-handed 310
Helix 29
29
B
256 258Right-handed 310
Helix 30
30
B
259 267Right-handed alpha
Helix 31
31
B
279 282Right-handed 310
Helix 32
32
B
283 289Right-handed alpha
Helix 33
33
B
303 317Right-handed alpha
Helix 34
34
B
331 345Right-handed alpha
Helix 35
35
B
357 363Right-handed alpha
Helix 36
36
B
388 393Right-handed alpha
Helix 37
37
C
50 60Right-handed alpha
Helix 38
38
C
63 67Right-handed 310
Helix 39
39
C
73 85Right-handed alpha
Helix 40
40
C
90 112Right-handed alpha
Helix 41
41
C
116 121Right-handed alpha
Helix 42
42
C
138 152Right-handed alpha
Helix 43
43
C
195 203Right-handed alpha
Helix 44
44
C
203 215Right-handed alpha
Helix 45
45
C
229 240Right-handed alpha
Helix 46
46
C
241 244Right-handed 310
Helix 47
47
C
256 259Right-handed 310
Helix 48
48
C
260 267Right-handed alpha
Helix 49
49
C
279 282Right-handed 310
Helix 50
50
C
283 289Right-handed alpha
Helix 51
51
C
303 317Right-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
50 61Right-handed alpha
Helix 56
56
D
62 66Right-handed 310
Helix 57
57
D
73 85Right-handed alpha
Helix 58
58
D
90 112Right-handed alpha
Helix 59
59
D
115 120Right-handed alpha
Helix 60
60
D
138 152Right-handed alpha
Helix 61
61
D
195 214Right-handed alpha
Helix 62
62
D
229 239Right-handed alpha
Helix 63
63
D
240 244Right-handed 310
Helix 64
64
D
256 259Right-handed 310
Helix 65
65
D
260 265Right-handed alpha
Helix 66
66
D
279 282Right-handed 310
Helix 67
67
D
283 289Right-handed alpha
Helix 68
68
D
303 317Right-handed alpha
Helix 69
69
D
331 345Right-handed alpha
Helix 70
70
D
357 362Right-handed alpha
Helix 71
71
D
388 393Right-handed alpha
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There are 18 sheets in PDB entry 4IL2. 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,

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
14 22first strand
Strand 2
A
28 35anti-parallel
Strand 3
A
40 44anti-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
156 159parallel
Strand 7
A
128 134parallel
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
156 159parallel
Strand 7
A
128 134parallel
Strand 8
A
374 376anti-parallel
Strand 9
A
369 371anti-parallel
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There are 3 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
191 193first strand
Strand 2
A
404 406parallel
Strand 3
A
412 413anti-parallel
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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
14 22first strand
Strand 2
B
28 35anti-parallel
Strand 3
B
40 44anti-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
156 159parallel
Strand 7
B
128 134parallel
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
156 159parallel
Strand 7
B
128 134parallel
Strand 8
B
374 376anti-parallel
Strand 9
B
369 371anti-parallel
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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
B
184 185first strand
Strand 2
B
400 401anti-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
B
191 194first strand
Strand 2
B
404 407parallel
Strand 3
B
412 413anti-parallel
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There are 3 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
14 22first strand
Strand 2
C
28 35anti-parallel
Strand 3
C
40 44anti-parallel
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There are 8 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
156 159parallel
Strand 7
C
128 134parallel
Strand 8
C
351 352parallel
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There are 9 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
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
156 159parallel
Strand 7
C
128 134parallel
Strand 8
C
374 376anti-parallel
Strand 9
C
369 371anti-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
C
191 194first strand
Strand 2
C
404 407parallel
Strand 3
C
412 413anti-parallel
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There are 3 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
14 22first strand
Strand 2
D
28 35anti-parallel
Strand 3
D
40 44anti-parallel
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There are 4 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
219 221first strand
Strand 2
D
156 158parallel
Strand 3
D
128 133parallel
Strand 4
D
351 352parallel
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There are 5 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
219 221first strand
Strand 2
D
156 158parallel
Strand 3
D
128 133parallel
Strand 4
D
374 376anti-parallel
Strand 5
D
369 371anti-parallel
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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
D
191 193first strand
Strand 2
D
404 406parallel
Strand 3
D
412 413anti-parallel
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There are 4 strands in R sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
D
248 249first strand
Strand 2
D
271 273parallel
Strand 3
D
294 295parallel
Strand 4
D
321 322parallel
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