Analysis of interatomic Contacts of Structural Units in PDB entry:
4B31


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 4B31 entry

There are 4 chains in PDB entry 4B31 (CSU analysis of residue contacts immediately below table)
Chain ID Initial residueTerminal residue
A
 SER 21ASP 697
B
 PRO 22SER 698
C
 SER 21ASP 697
D
 SER 21SER 698
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 are118 helices in PDB entry 4B31. Click on helix of interest for CSU analysis.
Helix
number 		Helix
ID		Chain
ID		 Initial
residue		Terminal
residue		 Helix class
Helix 1
1
A
23 25Right-handed 310
Helix 2
2
A
61 73Right-handed alpha
Helix 3
3
A
104 107Right-handed 310
Helix 4
4
A
164 166Right-handed 310
Helix 5
5
A
167 176Right-handed alpha
Helix 6
6
A
190 200Right-handed alpha
Helix 7
7
A
203 212Right-handed alpha
Helix 8
8
A
213 216Right-handed 310
Helix 9
9
A
219 223Right-handed 310
Helix 10
10
A
257 268Right-handed alpha
Helix 11
11
A
270 282Right-handed alpha
Helix 12
12
A
298 300Right-handed 310
Helix 13
13
A
336 342Right-handed alpha
Helix 14
14
A
359 378Right-handed alpha
Helix 15
15
A
381 385Right-handed 310
Helix 16
16
A
385 389Right-handed 310
Helix 17
17
A
452 456Right-handed 310
Helix 18
18
A
459 468Right-handed alpha
Helix 19
19
A
470 486Right-handed alpha
Helix 20
20
A
490 505Right-handed alpha
Helix 21
21
A
505 517Right-handed alpha
Helix 22
22
A
524 528Right-handed 310
Helix 23
23
A
560 576Right-handed alpha
Helix 24
24
A
600 604Right-handed 310
Helix 25
25
A
612 617Right-handed 310
Helix 26
26
A
629 641Right-handed alpha
Helix 27
27
A
652 659Right-handed alpha
Helix 28
28
A
673 688Right-handed alpha
Helix 29
29
A
690 694Right-handed 310
Helix 30
30
B
23 25Right-handed 310
Helix 31
31
B
61 73Right-handed alpha
Helix 32
32
B
104 108Right-handed 310
Helix 33
33
B
164 166Right-handed 310
Helix 34
34
B
167 176Right-handed alpha
Helix 35
35
B
190 200Right-handed alpha
Helix 36
36
B
203 212Right-handed alpha
Helix 37
37
B
213 216Right-handed 310
Helix 38
38
B
219 223Right-handed 310
Helix 39
39
B
257 268Right-handed alpha
Helix 40
40
B
270 282Right-handed alpha
Helix 41
41
B
296 300Right-handed 310
Helix 42
42
B
335 340Right-handed alpha
Helix 43
43
B
359 378Right-handed alpha
Helix 44
44
B
381 385Right-handed 310
Helix 45
45
B
385 389Right-handed 310
Helix 46
46
B
452 456Right-handed 310
Helix 47
47
B
459 468Right-handed alpha
Helix 48
48
B
470 486Right-handed alpha
Helix 49
49
B
490 505Right-handed alpha
Helix 50
50
B
505 516Right-handed alpha
Helix 51
51
B
524 528Right-handed 310
Helix 52
52
B
560 576Right-handed alpha
Helix 53
53
B
600 604Right-handed 310
Helix 54
54
B
612 617Right-handed 310
Helix 55
55
B
629 641Right-handed alpha
Helix 56
56
B
652 660Right-handed alpha
Helix 57
57
B
673 688Right-handed alpha
Helix 58
58
B
690 694Right-handed 310
Helix 59
59
C
21 26Right-handed alpha
Helix 60
60
C
61 73Right-handed alpha
Helix 61
61
C
104 107Right-handed 310
Helix 62
62
C
164 166Right-handed 310
Helix 63
63
C
167 176Right-handed alpha
Helix 64
64
C
190 200Right-handed alpha
Helix 65
65
C
203 212Right-handed alpha
Helix 66
66
C
213 216Right-handed 310
Helix 67
67
C
219 223Right-handed 310
Helix 68
68
C
257 268Right-handed alpha
Helix 69
69
C
270 282Right-handed alpha
Helix 70
70
C
298 300Right-handed 310
Helix 71
71
C
335 340Right-handed alpha
Helix 72
72
C
359 378Right-handed alpha
Helix 73
73
C
381 385Right-handed 310
Helix 74
74
C
385 389Right-handed 310
Helix 75
75
C
452 456Right-handed 310
Helix 76
76
C
459 468Right-handed alpha
Helix 77
77
C
470 486Right-handed alpha
Helix 78
78
C
490 505Right-handed alpha
Helix 79
79
C
505 517Right-handed alpha
Helix 80
80
C
524 528Right-handed 310
Helix 81
81
C
538 542Right-handed 310
Helix 82
82
C
560 577Right-handed alpha
Helix 83
83
C
600 604Right-handed 310
Helix 84
84
C
612 618Right-handed 310
Helix 85
85
C
629 641Right-handed alpha
Helix 86
86
C
654 659Right-handed alpha
Helix 87
87
C
673 688Right-handed alpha
Helix 88
88
C
690 694Right-handed 310
Helix 89
89
D
21 26Right-handed alpha
Helix 90
90
D
61 73Right-handed alpha
Helix 91
91
D
104 107Right-handed 310
Helix 92
92
D
164 166Right-handed 310
Helix 93
93
D
167 176Right-handed alpha
Helix 94
94
D
190 200Right-handed alpha
Helix 95
95
D
203 212Right-handed alpha
Helix 96
96
D
213 216Right-handed 310
Helix 97
97
D
219 223Right-handed 310
Helix 98
98
D
257 268Right-handed alpha
Helix 99
99
D
270 282Right-handed alpha
Helix 100
100
D
296 300Right-handed 310
Helix 101
101
D
335 340Right-handed alpha
Helix 102
102
D
359 378Right-handed alpha
Helix 103
103
D
381 385Right-handed 310
Helix 104
104
D
385 389Right-handed 310
Helix 105
105
D
452 456Right-handed 310
Helix 106
106
D
459 468Right-handed alpha
Helix 107
107
D
470 487Right-handed alpha
Helix 108
108
D
490 505Right-handed alpha
Helix 109
109
D
505 515Right-handed alpha
Helix 110
110
D
524 528Right-handed 310
Helix 111
111
D
538 542Right-handed 310
Helix 112
112
D
560 577Right-handed alpha
Helix 113
113
D
600 604Right-handed 310
Helix 114
114
D
612 618Right-handed 310
Helix 115
115
D
629 641Right-handed alpha
Helix 116
116
D
654 660Right-handed alpha
Helix 117
117
D
673 688Right-handed alpha
Helix 118
118
D
690 694Right-handed 310
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There are 14 sheets in PDB entry 4B31. Click on sheet of interest to get list of strands forming it: AA, AB, AC, AD, CA, AE, BA, BB, BC, BD, CB, CC, A, DB,

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
27 28first strand
Strand 2
D
407 408parallel
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There are 4 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
50 51first strand
Strand 2
C
442 448anti-parallel
Strand 3
D
442 448anti-parallel
Strand 4
B
50 51anti-parallel
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There are 9 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
85 94first strand
Strand 2
A
113 121anti-parallel
Strand 3
A
138 145anti-parallel
Strand 4
A
148 155anti-parallel
Strand 5
A
225 226anti-parallel
Strand 6
A
240 249anti-parallel
Strand 7
A
287 296anti-parallel
Strand 8
A
322 331anti-parallel
Strand 9
A
85 94anti-parallel
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There are 2 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
407 408first strand
Strand 2
D
27 28parallel
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There are 4 strands in CA sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
C
50 51first strand
Strand 2
A
442 448anti-parallel
Strand 3
B
442 448anti-parallel
Strand 4
D
50 51anti-parallel
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There are 6 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
594 595first strand
Strand 2
A
580 585parallel
Strand 3
A
551 555parallel
Strand 4
A
606 610parallel
Strand 5
A
645 648parallel
Strand 6
A
668 671parallel
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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
27 28first strand
Strand 2
C
407 408parallel
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There are 9 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
85 94first strand
Strand 2
B
113 122anti-parallel
Strand 3
B
137 145anti-parallel
Strand 4
B
148 155anti-parallel
Strand 5
B
225 226anti-parallel
Strand 6
B
240 249anti-parallel
Strand 7
B
287 295anti-parallel
Strand 8
B
322 331anti-parallel
Strand 9
B
85 94anti-parallel
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There are 2 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
407 408first strand
Strand 2
C
27 28parallel
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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
594 595first strand
Strand 2
B
580 585parallel
Strand 3
B
551 555parallel
Strand 4
B
606 610parallel
Strand 5
B
645 648parallel
Strand 6
B
668 671parallel
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There are 9 strands in CB sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
C
85 94first strand
Strand 2
C
113 121anti-parallel
Strand 3
C
138 145anti-parallel
Strand 4
C
148 155anti-parallel
Strand 5
C
225 226anti-parallel
Strand 6
C
240 249anti-parallel
Strand 7
C
287 296anti-parallel
Strand 8
C
322 331anti-parallel
Strand 9
C
85 94anti-parallel
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There are 6 strands in CC sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
C
594 595first strand
Strand 2
C
580 585parallel
Strand 3
C
551 555parallel
Strand 4
C
606 610parallel
Strand 5
C
645 648parallel
Strand 6
C
668 671parallel
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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
D
85 94first strand
Strand 2
D
113 122anti-parallel
Strand 3
D
137 145anti-parallel
Strand 4
D
148 155anti-parallel
Strand 5
D
225 226anti-parallel
Strand 6
D
240 249anti-parallel
Strand 7
D
287 295anti-parallel
Strand 8
D
322 331anti-parallel
Strand 9
D
85 94anti-parallel
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There are 6 strands in DB sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
D
594 595first strand
Strand 2
D
580 585parallel
Strand 3
D
551 555parallel
Strand 4
D
606 610parallel
Strand 5
D
645 648parallel
Strand 6
D
668 671parallel
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