Analysis of interatomic Contacts of Structural Units in PDB entry:
3IZX


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 3IZX entry

There are 5 chains in PDB entry 3IZX (CSU analysis of residue contacts immediately below table)
Chain ID Initial residueTerminal residue
A
 MET 1ARG 1057
B
 LYS 135ALA 1333
C
 LYS 74ALA 1333
D
 GLN 3ALA 292
E
 GLN 3ALA 292
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 are138 helices in PDB entry 3IZX. Click on helix of interest for CSU analysis.
Helix
number 		Helix
ID		Chain
ID		 Initial
residue		Terminal
residue		 Helix class
Helix 1
1
A
11 15Right-handed 310
Helix 2
2
A
18 22Right-handed 310
Helix 3
3
A
23 27Right-handed 310
Helix 4
4
A
33 37Right-handed 310
Helix 5
5
A
84 97Right-handed alpha
Helix 6
6
A
115 124Right-handed alpha
Helix 7
7
A
128 135Right-handed alpha
Helix 8
8
A
138 142Right-handed 310
Helix 9
9
A
147 158Right-handed alpha
Helix 10
10
A
188 199Right-handed alpha
Helix 11
11
A
211 215Right-handed 310
Helix 12
12
A
225 248Right-handed alpha
Helix 13
13
A
267 277Right-handed alpha
Helix 14
14
A
292 308Right-handed alpha
Helix 15
15
A
310 322Right-handed alpha
Helix 16
16
A
330 343Right-handed alpha
Helix 17
17
A
412 417Right-handed 310
Helix 18
18
A
430 448Right-handed alpha
Helix 19
19
A
450 460Right-handed alpha
Helix 20
20
A
463 466Right-handed 310
Helix 21
21
A
467 479Right-handed alpha
Helix 22
22
A
489 499Right-handed alpha
Helix 23
23
A
528 543Right-handed alpha
Helix 24
24
A
567 576Right-handed alpha
Helix 25
25
A
625 642Right-handed alpha
Helix 26
26
A
653 668Right-handed alpha
Helix 27
27
A
709 717Right-handed alpha
Helix 28
28
A
754 763Right-handed alpha
Helix 29
29
A
790 797Right-handed alpha
Helix 30
30
A
805 810Right-handed alpha
Helix 31
31
A
832 850Right-handed alpha
Helix 32
32
A
866 871Right-handed 310
Helix 33
33
A
888 895Right-handed alpha
Helix 34
34
A
935 952Right-handed alpha
Helix 35
35
A
965 974Right-handed alpha
Helix 36
36
A
999 1011Right-handed alpha
Helix 37
37
A
1020 1030Right-handed alpha
Helix 38
38
A
1037 1050Right-handed alpha
Helix 39
39
B
184 197Right-handed alpha
Helix 40
40
B
245 260Right-handed alpha
Helix 41
41
B
279 286Right-handed alpha
Helix 42
42
B
307 320Right-handed alpha
Helix 43
43
B
352 368Right-handed alpha
Helix 44
44
B
373 376Right-handed 310
Helix 45
45
B
377 382Right-handed alpha
Helix 46
46
B
404 419Right-handed alpha
Helix 47
47
B
421 437Right-handed alpha
Helix 48
48
B
459 471Right-handed alpha
Helix 49
49
B
477 485Right-handed alpha
Helix 50
50
B
508 521Right-handed alpha
Helix 51
51
B
521 528Right-handed alpha
Helix 52
52
B
532 544Right-handed alpha
Helix 53
53
B
546 554Right-handed alpha
Helix 54
54
B
576 580Right-handed 310
Helix 55
55
B
588 591Right-handed 310
Helix 56
56
B
597 606Right-handed alpha
Helix 57
57
B
617 623Right-handed alpha
Helix 58
58
B
647 670Right-handed alpha
Helix 59
59
B
673 700Right-handed alpha
Helix 60
60
B
700 710Right-handed alpha
Helix 61
61
B
762 770Right-handed alpha
Helix 62
62
B
797 814Right-handed alpha
Helix 63
63
B
814 824Right-handed alpha
Helix 64
64
B
825 827Right-handed 310
Helix 65
65
B
852 858Right-handed alpha
Helix 66
66
B
860 866Right-handed alpha
Helix 67
67
B
879 891Right-handed alpha
Helix 68
68
B
903 912Right-handed alpha
Helix 69
69
B
949 952Right-handed 310
Helix 70
70
B
961 971Right-handed alpha
Helix 71
71
B
975 990Right-handed alpha
Helix 72
72
B
997 1006Right-handed alpha
Helix 73
73
B
1037 1041Right-handed 310
Helix 74
74
B
1050 1064Right-handed alpha
Helix 75
75
B
1148 1163Right-handed alpha
Helix 76
76
B
1189 1195Right-handed alpha
Helix 77
77
B
1306 1310Right-handed 310
Helix 78
78
C
185 190Right-handed alpha
Helix 79
79
C
190 197Right-handed alpha
Helix 80
80
C
214 218Right-handed 310
Helix 81
81
C
244 260Right-handed alpha
Helix 82
82
C
274 278Right-handed 310
Helix 83
83
C
279 286Right-handed alpha
Helix 84
84
C
352 367Right-handed alpha
Helix 85
85
C
371 381Right-handed alpha
Helix 86
86
C
404 419Right-handed alpha
Helix 87
87
C
421 437Right-handed alpha
Helix 88
88
C
451 456Right-handed alpha
Helix 89
89
C
459 470Right-handed alpha
Helix 90
90
C
474 484Right-handed alpha
Helix 91
91
C
504 506Right-handed 310
Helix 92
92
C
507 521Right-handed alpha
Helix 93
93
C
521 528Right-handed alpha
Helix 94
94
C
528 544Right-handed alpha
Helix 95
95
C
546 555Right-handed alpha
Helix 96
96
C
576 580Right-handed 310
Helix 97
97
C
588 591Right-handed 310
Helix 98
98
C
597 606Right-handed alpha
Helix 99
99
C
617 622Right-handed alpha
Helix 100
100
C
646 666Right-handed alpha
Helix 101
101
C
671 711Right-handed alpha
Helix 102
102
C
759 761Right-handed 310
Helix 103
103
C
762 768Right-handed alpha
Helix 104
104
C
800 826Right-handed alpha
Helix 105
105
C
852 867Right-handed alpha
Helix 106
106
C
879 888Right-handed alpha
Helix 107
107
C
906 913Right-handed alpha
Helix 108
108
C
962 971Right-handed alpha
Helix 109
109
C
975 991Right-handed alpha
Helix 110
110
C
1048 1063Right-handed alpha
Helix 111
111
C
1064 1068Right-handed 310
Helix 112
112
C
1121 1125Right-handed 310
Helix 113
113
C
1150 1163Right-handed alpha
Helix 114
114
C
1179 1183Right-handed 310
Helix 115
115
C
1189 1196Right-handed alpha
Helix 116
116
D
27 33Right-handed alpha
Helix 117
117
D
67 77Right-handed alpha
Helix 118
118
D
89 95Right-handed 310
Helix 119
119
D
123 134Right-handed alpha
Helix 120
120
D
135 139Right-handed 310
Helix 121
121
D
152 161Right-handed alpha
Helix 122
122
D
162 170Right-handed alpha
Helix 123
123
D
184 196Right-handed alpha
Helix 124
124
D
197 206Right-handed alpha
Helix 125
125
D
210 233Right-handed alpha
Helix 126
126
D
234 236Right-handed 310
Helix 127
127
D
272 291Right-handed alpha
Helix 128
128
E
28 33Right-handed alpha
Helix 129
129
E
68 77Right-handed alpha
Helix 130
130
E
87 96Right-handed alpha
Helix 131
131
E
123 135Right-handed alpha
Helix 132
132
E
136 139Right-handed 310
Helix 133
133
E
148 161Right-handed alpha
Helix 134
134
E
184 196Right-handed alpha
Helix 135
135
E
197 206Right-handed alpha
Helix 136
136
E
210 220Right-handed alpha
Helix 137
137
E
220 236Right-handed alpha
Helix 138
138
E
272 291Right-handed alpha
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There are 31 sheets in PDB entry 3IZX. 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, S, T, U, V, W, X, Y, Z, AA, AB, AC, AD, AE,

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
39 42first strand
Strand 2
A
49 52anti-parallel
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There are 5 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
161 165first strand
Strand 2
A
179 184anti-parallel
Strand 3
A
217 221anti-parallel
Strand 4
A
205 208anti-parallel
Strand 5
A
260 263anti-parallel
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There are 4 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
373 375first strand
Strand 2
A
769 772anti-parallel
Strand 3
A
781 786anti-parallel
Strand 4
A
745 750anti-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
401 404first strand
Strand 2
A
823 826parallel
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There are 7 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
420 422first strand
Strand 2
A
674 679anti-parallel
Strand 3
A
689 695anti-parallel
Strand 4
A
645 651anti-parallel
Strand 5
A
612 615parallel
Strand 6
A
558 561parallel
Strand 7
A
584 586parallel
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There are 7 strands in F sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
A
898 900first strand
Strand 2
A
877 881parallel
Strand 3
A
857 861parallel
Strand 4
A
917 921parallel
Strand 5
A
956 961parallel
Strand 6
A
1052 1056anti-parallel
Strand 7
A
1014 1016anti-parallel
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There are 3 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
145 147first strand
Strand 2
B
1315 1320anti-parallel
Strand 3
B
388 390anti-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
155 157first strand
Strand 2
B
263 265parallel
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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
167 170first strand
Strand 2
B
201 205anti-parallel
Strand 3
B
1242 1243anti-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
B
331 332first strand
Strand 2
B
344 346anti-parallel
Strand 3
B
1302 1304anti-parallel
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There are 3 strands in K sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
B
566 568first strand
Strand 2
B
557 560anti-parallel
Strand 3
B
585 586anti-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
B
613 614first strand
Strand 2
B
633 634anti-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
B
742 743first strand
Strand 2
B
732 735anti-parallel
Strand 3
B
1018 1021anti-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
B
873 874first strand
Strand 2
B
894 897parallel
Strand 3
B
916 919parallel
Strand 4
B
847 851parallel
Strand 5
B
829 835anti-parallel
Strand 6
B
943 947anti-parallel
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There are 6 strands in O sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
B
1097 1100first strand
Strand 2
B
1137 1141parallel
Strand 3
B
1165 1168parallel
Strand 4
B
1074 1079anti-parallel
Strand 5
B
1225 1232anti-parallel
Strand 6
C
120 123anti-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
B
1109 1110first strand
Strand 2
B
1115 1116anti-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
B
1175 1176first strand
Strand 2
B
1204 1205parallel
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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
C
78 82first strand
Strand 2
C
167 171anti-parallel
Strand 3
C
201 205anti-parallel
Strand 4
C
1240 1243anti-parallel
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There are 2 strands in S sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
C
112 114first strand
Strand 2
C
134 136parallel
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There are 2 strands in T sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
C
155 157first strand
Strand 2
C
263 265parallel
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There are 2 strands in U sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
C
343 346first strand
Strand 2
C
1302 1305anti-parallel
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There are 2 strands in V sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
C
388 390first strand
Strand 2
C
1318 1320anti-parallel
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There are 2 strands in W sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
C
494 495first strand
Strand 2
C
757 758parallel
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There are 3 strands in X sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
C
566 568first strand
Strand 2
C
557 560anti-parallel
Strand 3
C
585 586anti-parallel
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There are 2 strands in Y sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
C
612 615first strand
Strand 2
C
632 635anti-parallel
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There are 3 strands in Z sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
C
740 743first strand
Strand 2
C
733 736anti-parallel
Strand 3
C
1018 1020anti-parallel
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There are 5 strands in AA sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
C
833 835first strand
Strand 2
C
847 851anti-parallel
Strand 3
C
917 919parallel
Strand 4
C
895 897parallel
Strand 5
C
873 874parallel
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There are 5 strands in AB sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
C
1097 1100first strand
Strand 2
C
1137 1141parallel
Strand 3
C
1165 1168parallel
Strand 4
C
1074 1080anti-parallel
Strand 5
C
1227 1232anti-parallel
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There are 4 strands in AC sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
D
35 36first strand
Strand 2
D
178 180anti-parallel
Strand 3
D
248 252anti-parallel
Strand 4
D
239 243anti-parallel
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There are 4 strands in AD sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
E
36 39first strand
Strand 2
E
175 180anti-parallel
Strand 3
E
248 252anti-parallel
Strand 4
E
239 243anti-parallel
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There are 2 strands in AE sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
E
105 106first strand
Strand 2
E
110 111anti-parallel
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