Analysis of interatomic Contacts of Structural Units in PDB entry:
4I26


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 4I26 entry

There are 4 chains in PDB entry 4I26 (CSU analysis of residue contacts immediately below table)
Chain ID Initial residueTerminal residue
A
 GLN 19ILE 500
B
 GLN 19ILE 500
C
 LEU 20ILE 500
D
 GLN 19ILE 500
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 81 helices in PDB entry 4I26. Click on helix of interest for CSU analysis.
Helix
number 		Helix
ID		Chain
ID		 Initial
residue		Terminal
residue		 Helix class
Helix 1
1
A
53 68Right-handed alpha
Helix 2
2
A
69 75Right-handed 310
Helix 3
3
A
76 93Right-handed alpha
Helix 4
4
A
94 107Right-handed alpha
Helix 5
5
A
109 116Right-handed alpha
Helix 6
6
A
116 135Right-handed alpha
Helix 7
7
A
170 185Right-handed alpha
Helix 8
8
A
198 211Right-handed alpha
Helix 9
9
A
228 236Right-handed alpha
Helix 10
10
A
247 258Right-handed alpha
Helix 11
11
A
282 296Right-handed alpha
Helix 12
12
A
297 300Right-handed 310
Helix 13
13
A
312 328Right-handed alpha
Helix 14
14
A
346 363Right-handed alpha
Helix 15
15
A
378 383Right-handed 310
Helix 16
16
A
398 403Right-handed alpha
Helix 17
17
A
417 427Right-handed alpha
Helix 18
18
A
440 449Right-handed alpha
Helix 19
19
A
473 475Right-handed 310
Helix 20
20
A
482 490Right-handed alpha
Helix 21
21
B
53 68Right-handed alpha
Helix 22
22
B
70 75Right-handed alpha
Helix 23
23
B
76 94Right-handed alpha
Helix 24
24
B
94 107Right-handed alpha
Helix 25
25
B
109 116Right-handed alpha
Helix 26
26
B
116 135Right-handed alpha
Helix 27
27
B
170 185Right-handed alpha
Helix 28
28
B
198 212Right-handed alpha
Helix 29
29
B
228 236Right-handed alpha
Helix 30
30
B
247 258Right-handed alpha
Helix 31
31
B
282 296Right-handed alpha
Helix 32
32
B
297 300Right-handed 310
Helix 33
33
B
312 328Right-handed alpha
Helix 34
34
B
346 363Right-handed alpha
Helix 35
35
B
378 383Right-handed 310
Helix 36
36
B
398 403Right-handed alpha
Helix 37
37
B
417 427Right-handed alpha
Helix 38
38
B
440 449Right-handed alpha
Helix 39
39
B
473 475Right-handed 310
Helix 40
40
B
482 490Right-handed alpha
Helix 41
41
C
53 68Right-handed alpha
Helix 42
42
C
70 75Right-handed alpha
Helix 43
43
C
76 94Right-handed alpha
Helix 44
44
C
94 107Right-handed alpha
Helix 45
45
C
109 116Right-handed alpha
Helix 46
46
C
116 135Right-handed alpha
Helix 47
47
C
170 185Right-handed alpha
Helix 48
48
C
198 212Right-handed alpha
Helix 49
49
C
228 236Right-handed alpha
Helix 50
50
C
247 259Right-handed alpha
Helix 51
51
C
282 296Right-handed alpha
Helix 52
52
C
297 300Right-handed 310
Helix 53
53
C
314 328Right-handed alpha
Helix 54
54
C
346 363Right-handed alpha
Helix 55
55
C
378 383Right-handed 310
Helix 56
56
C
398 403Right-handed alpha
Helix 57
57
C
417 427Right-handed alpha
Helix 58
58
C
440 450Right-handed alpha
Helix 59
59
C
473 475Right-handed 310
Helix 60
60
C
482 490Right-handed alpha
Helix 61
61
D
53 68Right-handed alpha
Helix 62
62
D
70 75Right-handed alpha
Helix 63
63
D
76 94Right-handed alpha
Helix 64
64
D
94 107Right-handed alpha
Helix 65
65
D
109 116Right-handed alpha
Helix 66
66
D
116 135Right-handed alpha
Helix 67
67
D
170 185Right-handed alpha
Helix 68
68
D
198 211Right-handed alpha
Helix 69
69
D
228 236Right-handed alpha
Helix 70
70
D
247 259Right-handed alpha
Helix 71
71
D
260 262Right-handed 310
Helix 72
72
D
282 296Right-handed alpha
Helix 73
73
D
297 300Right-handed 310
Helix 74
74
D
312 328Right-handed alpha
Helix 75
75
D
346 364Right-handed alpha
Helix 76
76
D
378 383Right-handed 310
Helix 77
77
D
398 403Right-handed alpha
Helix 78
78
D
417 427Right-handed alpha
Helix 79
79
D
440 449Right-handed alpha
Helix 80
80
D
473 475Right-handed 310
Helix 81
81
D
482 490Right-handed alpha
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There are 14 sheets in PDB entry 4I26. 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,

There are 2 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
22 24first strand
Strand 2
A
27 29anti-parallel
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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
33 38first strand
Strand 2
A
45 51anti-parallel
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There are 20 strands in C sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
B
366 369first strand
Strand 2
B
389 392anti-parallel
Strand 3
B
409 415parallel
Strand 4
B
305 311parallel
Strand 5
B
273 277parallel
Strand 6
B
433 437parallel
Strand 7
B
455 458parallel
Strand 8
A
491 499parallel
Strand 9
A
150 158anti-parallel
Strand 10
A
137 142anti-parallel
Strand 11
C
137 142anti-parallel
Strand 12
C
150 158anti-parallel
Strand 13
C
491 499anti-parallel
Strand 14
D
455 458parallel
Strand 15
D
433 437parallel
Strand 16
D
273 277parallel
Strand 17
D
305 311parallel
Strand 18
D
409 415parallel
Strand 19
D
389 392parallel
Strand 20
D
366 369anti-parallel
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There are 6 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
218 220first strand
Strand 2
A
188 192parallel
Strand 3
A
161 165parallel
Strand 4
A
241 245parallel
Strand 5
A
264 268parallel
Strand 6
A
477 478anti-parallel
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There are 20 strands in E sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
A
366 369first strand
Strand 2
A
389 392anti-parallel
Strand 3
A
409 415parallel
Strand 4
A
305 311parallel
Strand 5
A
273 277parallel
Strand 6
A
433 437parallel
Strand 7
A
455 458parallel
Strand 8
B
491 499parallel
Strand 9
B
150 158anti-parallel
Strand 10
B
137 142anti-parallel
Strand 11
D
137 142anti-parallel
Strand 12
D
150 158anti-parallel
Strand 13
D
491 499anti-parallel
Strand 14
C
455 458parallel
Strand 15
C
433 437parallel
Strand 16
C
273 277parallel
Strand 17
C
305 311parallel
Strand 18
C
409 415parallel
Strand 19
C
389 392parallel
Strand 20
C
366 369anti-parallel
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There are 2 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
22 24first strand
Strand 2
B
27 29anti-parallel
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There are 2 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
34 38first strand
Strand 2
B
45 50anti-parallel
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There are 6 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
218 220first strand
Strand 2
B
188 192parallel
Strand 3
B
161 165parallel
Strand 4
B
241 245parallel
Strand 5
B
264 268parallel
Strand 6
B
477 478anti-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
C
22 24first strand
Strand 2
C
27 29anti-parallel
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There are 2 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
34 38first strand
Strand 2
C
45 50anti-parallel
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There are 6 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
218 220first strand
Strand 2
C
188 192parallel
Strand 3
C
161 165parallel
Strand 4
C
241 245parallel
Strand 5
C
264 268parallel
Strand 6
C
477 478anti-parallel
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There are 2 strands in L sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
D
22 24first strand
Strand 2
D
27 29anti-parallel
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There are 2 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
34 38first strand
Strand 2
D
45 50anti-parallel
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There are 6 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
218 220first strand
Strand 2
D
188 192parallel
Strand 3
D
161 165parallel
Strand 4
D
241 245parallel
Strand 5
D
264 268parallel
Strand 6
D
477 478anti-parallel
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