Analysis of interatomic Contacts of Structural Units in PDB entry:
1S26


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 1S26 entry

There are 6 chains in PDB entry 1S26 (CSU analysis of residue contacts immediately below table)
Chain ID Initial residueTerminal residue
A
 ARG 292ASP 798
B
 ASP 294ASP 798
C
 ARG 292ASP 798
D
 THR 5ALA 147
E
 THR 5ALA 147
F
 THR 5ALA 147
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 80 helices in PDB entry 1S26. Click on helix of interest for CSU analysis.
Helix
number 		Helix
ID		Chain
ID		 Initial
residue		Terminal
residue		 Helix class
Helix 1
1
A
298 306Right-handed alpha
Helix 2
2
A
308 322Right-handed alpha
Helix 3
3
A
335 341Right-handed alpha
Helix 4
4
A
367 371Right-handed 310
Helix 5
5
A
376 394Right-handed alpha
Helix 6
6
A
406 416Right-handed alpha
Helix 7
7
A
500 506Right-handed alpha
Helix 8
8
A
513 518Right-handed alpha
Helix 9
9
A
521 538Right-handed alpha
Helix 10
10
A
550 567Right-handed alpha
Helix 11
11
A
579 583Right-handed 310
Helix 12
12
A
607 619Right-handed alpha
Helix 13
13
A
647 652Right-handed alpha
Helix 14
14
A
653 656Right-handed 310
Helix 15
15
A
659 665Right-handed alpha
Helix 16
16
A
696 705Right-handed alpha
Helix 17
17
A
706 712Right-handed 310
Helix 18
18
A
713 737Right-handed alpha
Helix 19
19
A
744 766Right-handed alpha
Helix 20
20
A
788 797Right-handed alpha
Helix 21
21
B
298 306Right-handed alpha
Helix 22
22
B
308 322Right-handed alpha
Helix 23
23
B
332 341Right-handed alpha
Helix 24
24
B
367 371Right-handed 310
Helix 25
25
B
376 394Right-handed alpha
Helix 26
26
B
406 416Right-handed alpha
Helix 27
27
B
500 506Right-handed alpha
Helix 28
28
B
509 518Right-handed alpha
Helix 29
29
B
524 536Right-handed alpha
Helix 30
30
B
550 566Right-handed alpha
Helix 31
31
B
579 583Right-handed 310
Helix 32
32
B
607 619Right-handed alpha
Helix 33
33
B
647 652Right-handed alpha
Helix 34
34
B
713 730Right-handed alpha
Helix 35
35
B
734 738Right-handed 310
Helix 36
36
B
742 767Right-handed alpha
Helix 37
37
B
785 797Right-handed alpha
Helix 38
38
C
298 306Right-handed alpha
Helix 39
39
C
308 322Right-handed alpha
Helix 40
40
C
335 341Right-handed alpha
Helix 41
41
C
367 371Right-handed 310
Helix 42
42
C
376 394Right-handed alpha
Helix 43
43
C
406 416Right-handed alpha
Helix 44
44
C
500 506Right-handed alpha
Helix 45
45
C
511 518Right-handed alpha
Helix 46
46
C
521 537Right-handed alpha
Helix 47
47
C
550 566Right-handed alpha
Helix 48
48
C
579 583Right-handed 310
Helix 49
49
C
607 619Right-handed alpha
Helix 50
50
C
647 654Right-handed alpha
Helix 51
51
C
660 670Right-handed alpha
Helix 52
52
C
695 705Right-handed alpha
Helix 53
53
C
706 712Right-handed 310
Helix 54
54
C
713 737Right-handed alpha
Helix 55
55
C
744 766Right-handed alpha
Helix 56
56
C
788 797Right-handed alpha
Helix 57
57
D
5 16Right-handed alpha
Helix 58
58
D
29 39Right-handed alpha
Helix 59
59
D
46 55Right-handed alpha
Helix 60
60
D
65 76Right-handed alpha
Helix 61
61
D
81 93Right-handed alpha
Helix 62
62
D
101 112Right-handed alpha
Helix 63
63
D
117 129Right-handed alpha
Helix 64
64
D
138 146Right-handed alpha
Helix 65
65
E
6 16Right-handed alpha
Helix 66
66
E
29 39Right-handed alpha
Helix 67
67
E
46 55Right-handed alpha
Helix 68
68
E
65 76Right-handed alpha
Helix 69
69
E
81 93Right-handed alpha
Helix 70
70
E
101 112Right-handed alpha
Helix 71
71
E
117 129Right-handed alpha
Helix 72
72
E
138 147Right-handed alpha
Helix 73
73
F
5 16Right-handed alpha
Helix 74
74
F
29 39Right-handed alpha
Helix 75
75
F
46 55Right-handed alpha
Helix 76
76
F
65 76Right-handed alpha
Helix 77
77
F
81 93Right-handed alpha
Helix 78
78
F
101 112Right-handed alpha
Helix 79
79
F
117 129Right-handed alpha
Helix 80
80
F
138 147Right-handed alpha
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There are 18 sheets in PDB entry 1S26. 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 5 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
296 297first strand
Strand 2
A
602 604anti-parallel
Strand 3
A
594 596anti-parallel
Strand 4
A
324 328anti-parallel
Strand 5
A
494 499anti-parallel
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There are 4 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
344 345first strand
Strand 2
A
484 489parallel
Strand 3
A
475 481anti-parallel
Strand 4
A
398 402anti-parallel
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There are 5 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
420 427first strand
Strand 2
A
430 436anti-parallel
Strand 3
A
442 447anti-parallel
Strand 4
A
453 457anti-parallel
Strand 5
A
472 473anti-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
541 543first strand
Strand 2
A
547 549anti-parallel
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There are 5 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
296 297first strand
Strand 2
B
602 604anti-parallel
Strand 3
B
594 596anti-parallel
Strand 4
B
324 328anti-parallel
Strand 5
B
494 499anti-parallel
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There are 4 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
344 345first strand
Strand 2
B
484 489parallel
Strand 3
B
475 481anti-parallel
Strand 4
B
398 402anti-parallel
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There are 5 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
420 427first strand
Strand 2
B
430 436anti-parallel
Strand 3
B
442 447anti-parallel
Strand 4
B
453 457anti-parallel
Strand 5
B
472 473anti-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
541 542first strand
Strand 2
B
548 549anti-parallel
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There are 5 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
296 297first strand
Strand 2
C
602 604anti-parallel
Strand 3
C
594 596anti-parallel
Strand 4
C
324 328anti-parallel
Strand 5
C
494 499anti-parallel
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There are 4 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
344 345first strand
Strand 2
C
484 489parallel
Strand 3
C
475 481anti-parallel
Strand 4
C
398 402anti-parallel
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There are 5 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
420 427first strand
Strand 2
C
430 436anti-parallel
Strand 3
C
442 447anti-parallel
Strand 4
C
453 457anti-parallel
Strand 5
C
472 473anti-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
C
541 543first strand
Strand 2
C
547 549anti-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
26 28first strand
Strand 2
D
62 64anti-parallel
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There are 2 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
99 100first strand
Strand 2
D
136 137anti-parallel
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There are 2 strands in O sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
E
26 28first strand
Strand 2
E
62 64anti-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
E
99 100first strand
Strand 2
E
136 137anti-parallel
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There are 2 strands in Q sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
F
26 28first strand
Strand 2
F
62 64anti-parallel
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There are 2 strands in R sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
F
99 100first strand
Strand 2
F
136 137anti-parallel
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Please mail questions/suggestions concerning this page to Vladimir.Sobolev@weizmann. ac.il