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


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 2XTA entry

There are 2 chains in PDB entry 2XTA (CSU analysis of residue contacts immediately below table)
Chain ID Initial residueTerminal residue
A
 LYS 366GLY 1227
B
 ASP 365LYS 894
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 are157 helices in PDB entry 2XTA. Click on helix of interest for CSU analysis.
Helix
number 		Helix
ID		Chain
ID		 Initial
residue		Terminal
residue		 Helix class
Helix 1
1
A
366 381Right-handed alpha
Helix 2
2
A
382 384Right-handed 310
Helix 3
3
A
393 397Right-handed 310
Helix 4
4
A
405 409Right-handed 310
Helix 5
5
A
413 416Right-handed 310
Helix 6
6
A
432 444Right-handed alpha
Helix 7
7
A
456 468Right-handed alpha
Helix 8
8
A
475 500Right-handed alpha
Helix 9
9
A
503 507Right-handed 310
Helix 10
10
A
513 528Right-handed alpha
Helix 11
11
A
541 549Right-handed alpha
Helix 12
12
A
553 558Right-handed alpha
Helix 13
13
A
575 579Right-handed 310
Helix 14
14
A
609 624Right-handed alpha
Helix 15
15
A
645 651Right-handed alpha
Helix 16
16
A
651 659Right-handed alpha
Helix 17
17
A
685 690Right-handed alpha
Helix 18
18
A
696 703Right-handed 310
Helix 19
19
A
713 732Right-handed alpha
Helix 20
20
A
757 765Right-handed alpha
Helix 21
21
A
769 781Right-handed alpha
Helix 22
22
A
785 814Right-handed alpha
Helix 23
23
A
836 847Right-handed alpha
Helix 24
24
A
860 874Right-handed alpha
Helix 25
25
A
877 892Right-handed alpha
Helix 26
26
A
925 931Right-handed 310
Helix 27
27
A
952 966Right-handed alpha
Helix 28
28
A
977 983Right-handed 310
Helix 29
29
A
984 991Right-handed alpha
Helix 30
30
A
994 1000Right-handed alpha
Helix 31
31
A
1024 1032Right-handed alpha
Helix 32
32
A
1044 1058Right-handed alpha
Helix 33
33
A
1070 1075Right-handed 310
Helix 34
34
A
1081 1087Right-handed alpha
Helix 35
35
A
1096 1101Right-handed alpha
Helix 36
36
A
1105 1109Right-handed 310
Helix 37
37
A
1118 1131Right-handed alpha
Helix 38
38
A
1147 1156Right-handed alpha
Helix 39
39
A
1176 1188Right-handed alpha
Helix 40
40
A
1188 1193Right-handed alpha
Helix 41
41
A
1210 1226Right-handed alpha
Helix 42
42
B
365 381Right-handed alpha
Helix 43
43
B
382 384Right-handed 310
Helix 44
44
B
413 416Right-handed 310
Helix 45
45
B
432 444Right-handed alpha
Helix 46
46
B
456 468Right-handed alpha
Helix 47
47
B
475 500Right-handed alpha
Helix 48
48
B
503 507Right-handed 310
Helix 49
49
B
513 528Right-handed alpha
Helix 50
50
B
541 549Right-handed alpha
Helix 51
51
B
553 558Right-handed alpha
Helix 52
52
B
575 579Right-handed 310
Helix 53
53
B
609 624Right-handed alpha
Helix 54
54
B
645 651Right-handed alpha
Helix 55
55
B
651 659Right-handed alpha
Helix 56
56
B
685 690Right-handed alpha
Helix 57
57
B
696 703Right-handed 310
Helix 58
58
B
713 732Right-handed alpha
Helix 59
59
B
752 756Right-handed 310
Helix 60
60
B
757 765Right-handed alpha
Helix 61
61
B
769 781Right-handed alpha
Helix 62
62
B
785 811Right-handed alpha
Helix 63
63
B
836 847Right-handed alpha
Helix 64
64
B
860 874Right-handed alpha
Helix 65
65
B
877 892Right-handed alpha
Helix 66
66
B
925 931Right-handed 310
Helix 67
67
B
952 966Right-handed alpha
Helix 68
68
B
977 983Right-handed 310
Helix 69
69
B
984 991Right-handed alpha
Helix 70
70
B
994 1000Right-handed alpha
Helix 71
71
B
1024 1032Right-handed alpha
Helix 72
72
B
1044 1058Right-handed alpha
Helix 73
73
B
1070 1075Right-handed 310
Helix 74
74
B
1082 1087Right-handed alpha
Helix 75
75
B
1096 1101Right-handed alpha
Helix 76
76
B
1105 1109Right-handed 310
Helix 77
77
B
1118 1130Right-handed alpha
Helix 78
78
B
1147 1156Right-handed alpha
Helix 79
79
B
1176 1193Right-handed alpha
Helix 80
80
B
1210 1226Right-handed alpha
Helix 81
81
C
365 381Right-handed alpha
Helix 82
82
C
382 384Right-handed 310
Helix 83
83
C
432 444Right-handed alpha
Helix 84
84
C
456 468Right-handed alpha
Helix 85
85
C
475 500Right-handed alpha
Helix 86
86
C
503 507Right-handed 310
Helix 87
87
C
513 528Right-handed alpha
Helix 88
88
C
541 549Right-handed alpha
Helix 89
89
C
553 558Right-handed alpha
Helix 90
90
C
575 579Right-handed 310
Helix 91
91
C
609 624Right-handed alpha
Helix 92
92
C
645 651Right-handed alpha
Helix 93
93
C
651 659Right-handed alpha
Helix 94
94
C
685 690Right-handed alpha
Helix 95
95
C
696 703Right-handed 310
Helix 96
96
C
713 732Right-handed alpha
Helix 97
97
C
752 756Right-handed 310
Helix 98
98
C
757 765Right-handed alpha
Helix 99
99
C
769 781Right-handed alpha
Helix 100
100
C
785 813Right-handed alpha
Helix 101
101
C
836 847Right-handed alpha
Helix 102
102
C
860 874Right-handed alpha
Helix 103
103
C
877 892Right-handed alpha
Helix 104
104
C
925 931Right-handed 310
Helix 105
105
C
952 966Right-handed alpha
Helix 106
106
C
977 983Right-handed 310
Helix 107
107
C
984 991Right-handed alpha
Helix 108
108
C
994 1000Right-handed alpha
Helix 109
109
C
1024 1032Right-handed alpha
Helix 110
110
C
1044 1058Right-handed alpha
Helix 111
111
C
1070 1075Right-handed 310
Helix 112
112
C
1081 1087Right-handed alpha
Helix 113
113
C
1096 1101Right-handed alpha
Helix 114
114
C
1105 1109Right-handed 310
Helix 115
115
C
1118 1131Right-handed alpha
Helix 116
116
C
1147 1156Right-handed alpha
Helix 117
117
C
1176 1193Right-handed alpha
Helix 118
118
C
1210 1226Right-handed alpha
Helix 119
119
D
365 381Right-handed alpha
Helix 120
120
D
382 384Right-handed 310
Helix 121
121
D
413 416Right-handed 310
Helix 122
122
D
432 444Right-handed alpha
Helix 123
123
D
456 468Right-handed alpha
Helix 124
124
D
475 500Right-handed alpha
Helix 125
125
D
503 507Right-handed 310
Helix 126
126
D
513 528Right-handed alpha
Helix 127
127
D
541 549Right-handed alpha
Helix 128
128
D
553 558Right-handed alpha
Helix 129
129
D
574 579Right-handed 310
Helix 130
130
D
609 624Right-handed alpha
Helix 131
131
D
645 651Right-handed alpha
Helix 132
132
D
651 659Right-handed alpha
Helix 133
133
D
685 690Right-handed alpha
Helix 134
134
D
696 703Right-handed 310
Helix 135
135
D
713 732Right-handed alpha
Helix 136
136
D
752 756Right-handed 310
Helix 137
137
D
757 765Right-handed alpha
Helix 138
138
D
769 781Right-handed alpha
Helix 139
139
D
785 814Right-handed alpha
Helix 140
140
D
836 847Right-handed alpha
Helix 141
141
D
860 874Right-handed alpha
Helix 142
142
D
877 892Right-handed alpha
Helix 143
143
D
925 931Right-handed 310
Helix 144
144
D
952 966Right-handed alpha
Helix 145
145
D
977 983Right-handed 310
Helix 146
146
D
984 991Right-handed alpha
Helix 147
147
D
994 1000Right-handed alpha
Helix 148
148
D
1024 1032Right-handed alpha
Helix 149
149
D
1044 1058Right-handed alpha
Helix 150
150
D
1070 1075Right-handed 310
Helix 151
151
D
1081 1087Right-handed alpha
Helix 152
152
D
1096 1101Right-handed alpha
Helix 153
153
D
1105 1109Right-handed 310
Helix 154
154
D
1118 1130Right-handed alpha
Helix 155
155
D
1147 1156Right-handed alpha
Helix 156
156
D
1176 1193Right-handed alpha
Helix 157
157
D
1210 1226Right-handed alpha
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There are 20 sheets in PDB entry 2XTA. Click on sheet of interest to get list of strands forming it: AA, AB, AC, AD, AE, BA, BB, BC, BD, BE, CA, CB, CC, CD, CE, A, DB, C, DD, DE,

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
418 420first strand
Strand 2
A
429 431anti-parallel
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There are 8 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
447 450first strand
Strand 2
A
706 710anti-parallel
Strand 3
A
735 740parallel
Strand 4
A
672 677parallel
Strand 5
A
637 644parallel
Strand 6
A
532 536parallel
Strand 7
A
594 599parallel
Strand 8
A
582 587anti-parallel
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There are 7 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
942 947first strand
Strand 2
A
895 900parallel
Strand 3
A
970 974parallel
Strand 4
A
1006 1010parallel
Strand 5
A
1064 1068parallel
Strand 6
A
1038 1040parallel
Strand 7
A
1142 1144anti-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
915 916first strand
Strand 2
A
923 924anti-parallel
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There are 5 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
1093 1094first strand
Strand 2
A
1135 1140anti-parallel
Strand 3
A
1111 1115parallel
Strand 4
A
1163 1171parallel
Strand 5
A
1196 1200parallel
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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
418 420first strand
Strand 2
B
429 431anti-parallel
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There are 8 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
447 450first strand
Strand 2
B
706 710anti-parallel
Strand 3
B
735 740parallel
Strand 4
B
672 677parallel
Strand 5
B
637 644parallel
Strand 6
B
532 536parallel
Strand 7
B
594 599parallel
Strand 8
B
582 587anti-parallel
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There are 7 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
942 947first strand
Strand 2
B
895 900parallel
Strand 3
B
970 974parallel
Strand 4
B
1006 1010parallel
Strand 5
B
1064 1068parallel
Strand 6
B
1038 1040parallel
Strand 7
B
1142 1144anti-parallel
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There are 2 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
915 916first strand
Strand 2
B
923 924anti-parallel
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There are 5 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
1093 1094first strand
Strand 2
B
1135 1140anti-parallel
Strand 3
B
1111 1115parallel
Strand 4
B
1163 1171parallel
Strand 5
B
1196 1200parallel
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There are 2 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
418 419first strand
Strand 2
C
430 431anti-parallel
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There are 8 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
447 450first strand
Strand 2
C
706 710anti-parallel
Strand 3
C
735 740parallel
Strand 4
C
672 677parallel
Strand 5
C
637 644parallel
Strand 6
C
532 536parallel
Strand 7
C
594 599parallel
Strand 8
C
582 587anti-parallel
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There are 7 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
942 947first strand
Strand 2
C
895 900parallel
Strand 3
C
970 974parallel
Strand 4
C
1006 1010parallel
Strand 5
C
1064 1068parallel
Strand 6
C
1038 1040parallel
Strand 7
C
1142 1144anti-parallel
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There are 2 strands in CD sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
C
915 916first strand
Strand 2
C
923 924anti-parallel
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There are 5 strands in CE sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
C
1093 1094first strand
Strand 2
C
1135 1140anti-parallel
Strand 3
C
1111 1115parallel
Strand 4
C
1163 1171parallel
Strand 5
C
1196 1200parallel
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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
D
418 421first strand
Strand 2
D
428 431anti-parallel
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There are 8 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
447 450first strand
Strand 2
D
706 710anti-parallel
Strand 3
D
735 740parallel
Strand 4
D
672 677parallel
Strand 5
D
637 644parallel
Strand 6
D
532 536parallel
Strand 7
D
594 599parallel
Strand 8
D
582 587anti-parallel
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There are 7 strands in C sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
D
942 947first strand
Strand 2
D
895 900parallel
Strand 3
D
970 974parallel
Strand 4
D
1006 1010parallel
Strand 5
D
1064 1068parallel
Strand 6
D
1038 1040parallel
Strand 7
D
1142 1144anti-parallel
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There are 2 strands in DD sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
D
915 916first strand
Strand 2
D
923 924anti-parallel
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There are 5 strands in DE sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
D
1093 1094first strand
Strand 2
D
1135 1140anti-parallel
Strand 3
D
1111 1115parallel
Strand 4
D
1163 1171parallel
Strand 5
D
1196 1200parallel
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