Analysis of interatomic Contacts of Structural Units in PDB entry:
2IWH


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 2IWH entry

There are 2 chains in PDB entry 2IWH (CSU analysis of residue contacts immediately below table)
Chain ID Initial residueTerminal residue
A
 SER 1SER 973
B
 HIS -3TRP 977
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 are103 helices in PDB entry 2IWH. 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 20Right-handed alpha
Helix 2
2
A
24 37Right-handed alpha
Helix 3
3
A
46 58Right-handed alpha
Helix 4
4
A
59 74Right-handed alpha
Helix 5
5
A
83 89Right-handed alpha
Helix 6
6
A
90 98Right-handed alpha
Helix 7
7
A
102 118Right-handed alpha
Helix 8
8
A
121 123Right-handed 310
Helix 9
9
A
124 139Right-handed alpha
Helix 10
10
A
141 159Right-handed alpha
Helix 11
11
A
159 178Right-handed alpha
Helix 12
12
A
182 197Right-handed alpha
Helix 13
13
A
198 200Right-handed 310
Helix 14
14
A
205 207Right-handed 310
Helix 15
15
A
208 218Right-handed alpha
Helix 16
16
A
221 230Right-handed alpha
Helix 17
17
A
239 255Right-handed alpha
Helix 18
18
A
258 274Right-handed alpha
Helix 19
19
A
278 300Right-handed alpha
Helix 20
20
A
302 321Right-handed alpha
Helix 21
21
A
336 348Right-handed alpha
Helix 22
22
A
354 356Right-handed 310
Helix 23
23
A
357 374Right-handed alpha
Helix 24
24
A
378 386Right-handed alpha
Helix 25
25
A
386 391Right-handed alpha
Helix 26
26
A
395 413Right-handed alpha
Helix 27
27
A
467 478Right-handed alpha
Helix 28
28
A
506 513Right-handed alpha
Helix 29
29
A
518 529Right-handed alpha
Helix 30
30
A
532 538Right-handed alpha
Helix 31
31
A
540 543Right-handed 310
Helix 32
32
A
544 559Right-handed alpha
Helix 33
33
A
574 588Right-handed alpha
Helix 34
34
A
598 606Right-handed alpha
Helix 35
35
A
623 631Right-handed alpha
Helix 36
36
A
632 637Right-handed 310
Helix 37
37
A
703 714Right-handed alpha
Helix 38
38
A
736 743Right-handed alpha
Helix 39
39
A
744 747Right-handed 310
Helix 40
40
A
750 760Right-handed alpha
Helix 41
41
A
781 785Right-handed 310
Helix 42
42
A
832 836Right-handed 310
Helix 43
43
A
841 863Right-handed alpha
Helix 44
44
A
870 881Right-handed alpha
Helix 45
45
A
884 891Right-handed alpha
Helix 46
46
A
892 896Right-handed 310
Helix 47
47
A
897 910Right-handed alpha
Helix 48
48
A
922 925Right-handed 310
Helix 49
49
A
927 940Right-handed alpha
Helix 50
50
A
951 956Right-handed alpha
Helix 51
51
B
0 20Right-handed alpha
Helix 52
52
B
24 37Right-handed alpha
Helix 53
53
B
46 58Right-handed alpha
Helix 54
54
B
59 74Right-handed alpha
Helix 55
55
B
83 89Right-handed alpha
Helix 56
56
B
90 98Right-handed alpha
Helix 57
57
B
102 118Right-handed alpha
Helix 58
58
B
121 123Right-handed 310
Helix 59
59
B
124 139Right-handed alpha
Helix 60
60
B
141 159Right-handed alpha
Helix 61
61
B
159 165Right-handed alpha
Helix 62
62
B
166 178Right-handed alpha
Helix 63
63
B
182 197Right-handed alpha
Helix 64
64
B
198 200Right-handed 310
Helix 65
65
B
205 207Right-handed 310
Helix 66
66
B
208 218Right-handed alpha
Helix 67
67
B
221 229Right-handed alpha
Helix 68
68
B
239 255Right-handed alpha
Helix 69
69
B
258 274Right-handed alpha
Helix 70
70
B
278 287Right-handed alpha
Helix 71
71
B
289 300Right-handed alpha
Helix 72
72
B
302 321Right-handed alpha
Helix 73
73
B
323 327Right-handed 310
Helix 74
74
B
336 348Right-handed alpha
Helix 75
75
B
354 356Right-handed 310
Helix 76
76
B
357 374Right-handed alpha
Helix 77
77
B
378 386Right-handed alpha
Helix 78
78
B
386 391Right-handed alpha
Helix 79
79
B
395 412Right-handed alpha
Helix 80
80
B
467 477Right-handed alpha
Helix 81
81
B
506 513Right-handed alpha
Helix 82
82
B
518 530Right-handed alpha
Helix 83
83
B
532 538Right-handed alpha
Helix 84
84
B
540 543Right-handed 310
Helix 85
85
B
544 559Right-handed alpha
Helix 86
86
B
574 588Right-handed alpha
Helix 87
87
B
598 606Right-handed alpha
Helix 88
88
B
623 631Right-handed alpha
Helix 89
89
B
632 637Right-handed 310
Helix 90
90
B
641 646Right-handed 310
Helix 91
91
B
703 714Right-handed alpha
Helix 92
92
B
736 742Right-handed alpha
Helix 93
93
B
743 746Right-handed 310
Helix 94
94
B
750 759Right-handed alpha
Helix 95
95
B
832 836Right-handed 310
Helix 96
96
B
844 863Right-handed alpha
Helix 97
97
B
870 881Right-handed alpha
Helix 98
98
B
884 891Right-handed alpha
Helix 99
99
B
892 896Right-handed 310
Helix 100
100
B
897 910Right-handed alpha
Helix 101
101
B
922 925Right-handed 310
Helix 102
102
B
927 941Right-handed alpha
Helix 103
103
B
951 956Right-handed alpha
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There are 12 sheets in PDB entry 2IWH. Click on sheet of interest to get list of strands forming it: AA, AB, AC, AD, AE, AF, BA, BB, BC, BD, BE, BF,

There are 2 strands in AA sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
A
429 439first strand
Strand 2
A
442 453anti-parallel
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There are 6 strands in AB sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
A
491 493first strand
Strand 2
A
563 567parallel
Strand 3
A
591 595parallel
Strand 4
A
457 461parallel
Strand 5
A
608 613parallel
Strand 6
A
616 621anti-parallel
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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
A
683 691first strand
Strand 2
A
664 673anti-parallel
Strand 3
A
721 726anti-parallel
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There are 5 strands in AD sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
A
732 735first strand
Strand 2
A
916 920parallel
Strand 3
A
944 948parallel
Strand 4
A
695 698parallel
Strand 5
A
961 963parallel
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There are 4 strands in AE sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
A
787 789first strand
Strand 2
A
792 805anti-parallel
Strand 3
A
808 819anti-parallel
Strand 4
A
837 840anti-parallel
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There are 4 strands in AF sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
A
787 789first strand
Strand 2
A
792 805anti-parallel
Strand 3
A
808 819anti-parallel
Strand 4
A
827 830anti-parallel
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There are 2 strands in BA sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
B
429 439first strand
Strand 2
B
442 453anti-parallel
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There are 6 strands in BB sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
B
491 493first strand
Strand 2
B
563 567parallel
Strand 3
B
591 595parallel
Strand 4
B
457 461parallel
Strand 5
B
608 613parallel
Strand 6
B
616 621anti-parallel
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There are 3 strands in BC sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
B
683 690first strand
Strand 2
B
666 673anti-parallel
Strand 3
B
721 726anti-parallel
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There are 6 strands in BD sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
B
732 735first strand
Strand 2
B
916 920parallel
Strand 3
B
944 948parallel
Strand 4
B
695 698parallel
Strand 5
B
961 963parallel
Strand 6
B
973 974anti-parallel
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There are 4 strands in BE sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
B
787 789first strand
Strand 2
B
792 805anti-parallel
Strand 3
B
808 819anti-parallel
Strand 4
B
837 840anti-parallel
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There are 4 strands in BF sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
B
787 789first strand
Strand 2
B
792 805anti-parallel
Strand 3
B
808 819anti-parallel
Strand 4
B
827 830anti-parallel
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