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


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 1XXI entry

There are 10 chains in PDB entry 1XXI (CSU analysis of residue contacts immediately below table)
Chain ID Initial residueTerminal residue
A
 MET 1ASP 338
B
 VAL 5PRO 368
C
 TYR 3PRO 368
D
 VAL 5PRO 368
E
 MET 1LEU 334
F
 MET 1ASP 338
G
 VAL 5PRO 368
H
 TYR 3PRO 368
I
 VAL 5PRO 368
J
 MET 1LEU 334
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 are190 helices in PDB entry 1XXI. Click on helix of interest for CSU analysis.
Helix
number 		Helix
ID		Chain
ID		 Initial
residue		Terminal
residue		 Helix class
Helix 1
1
A
8 16Right-handed alpha
Helix 2
2
A
27 46Right-handed alpha
Helix 3
3
A
60 68Right-handed alpha
Helix 4
4
A
92 102Right-handed alpha
Helix 5
5
A
124 131Right-handed alpha
Helix 6
6
A
145 158Right-handed alpha
Helix 7
7
A
163 173Right-handed alpha
Helix 8
8
A
177 192Right-handed alpha
Helix 9
9
A
198 210Right-handed alpha
Helix 10
10
A
213 222Right-handed alpha
Helix 11
11
A
225 234Right-handed alpha
Helix 12
12
A
242 262Right-handed alpha
Helix 13
13
A
268 276Right-handed alpha
Helix 14
14
A
281 293Right-handed alpha
Helix 15
15
A
294 315Right-handed alpha
Helix 16
16
A
319 331Right-handed alpha
Helix 17
17
B
5 10Right-handed alpha
Helix 18
18
B
14 18Right-handed 310
Helix 19
19
B
21 34Right-handed alpha
Helix 20
20
B
50 64Right-handed alpha
Helix 21
21
B
76 85Right-handed alpha
Helix 22
22
B
100 110Right-handed alpha
Helix 23
23
B
127 131Right-handed 310
Helix 24
24
B
132 145Right-handed alpha
Helix 25
25
B
158 162Right-handed 310
Helix 26
26
B
163 168Right-handed alpha
Helix 27
27
B
179 194Right-handed alpha
Helix 28
28
B
199 210Right-handed alpha
Helix 29
29
B
213 229Right-handed alpha
Helix 30
30
B
233 238Right-handed alpha
Helix 31
31
B
250 258Right-handed alpha
Helix 32
32
B
260 274Right-handed alpha
Helix 33
33
B
277 295Right-handed alpha
Helix 34
34
B
298 302Right-handed 310
Helix 35
35
B
309 320Right-handed alpha
Helix 36
36
B
321 339Right-handed alpha
Helix 37
37
B
340 342Right-handed 310
Helix 38
38
B
344 359Right-handed alpha
Helix 39
39
C
5 10Right-handed alpha
Helix 40
40
C
21 35Right-handed alpha
Helix 41
41
C
50 63Right-handed alpha
Helix 42
42
C
76 84Right-handed alpha
Helix 43
43
C
100 110Right-handed alpha
Helix 44
44
C
127 131Right-handed 310
Helix 45
45
C
132 145Right-handed alpha
Helix 46
46
C
158 162Right-handed 310
Helix 47
47
C
163 168Right-handed alpha
Helix 48
48
C
179 195Right-handed alpha
Helix 49
49
C
199 210Right-handed alpha
Helix 50
50
C
213 228Right-handed alpha
Helix 51
51
C
233 241Right-handed alpha
Helix 52
52
C
245 259Right-handed alpha
Helix 53
53
C
260 274Right-handed alpha
Helix 54
54
C
277 296Right-handed alpha
Helix 55
55
C
304 308Right-handed 310
Helix 56
56
C
309 320Right-handed alpha
Helix 57
57
C
321 339Right-handed alpha
Helix 58
58
C
344 359Right-handed alpha
Helix 59
59
D
5 10Right-handed alpha
Helix 60
60
D
14 18Right-handed 310
Helix 61
61
D
21 34Right-handed alpha
Helix 62
62
D
50 64Right-handed alpha
Helix 63
63
D
76 85Right-handed alpha
Helix 64
64
D
100 110Right-handed alpha
Helix 65
65
D
127 131Right-handed 310
Helix 66
66
D
132 145Right-handed alpha
Helix 67
67
D
158 162Right-handed 310
Helix 68
68
D
163 168Right-handed alpha
Helix 69
69
D
179 194Right-handed alpha
Helix 70
70
D
199 210Right-handed alpha
Helix 71
71
D
213 228Right-handed alpha
Helix 72
72
D
233 241Right-handed alpha
Helix 73
73
D
247 257Right-handed alpha
Helix 74
74
D
261 274Right-handed alpha
Helix 75
75
D
277 298Right-handed alpha
Helix 76
76
D
304 308Right-handed 310
Helix 77
77
D
309 320Right-handed alpha
Helix 78
78
D
321 339Right-handed alpha
Helix 79
79
D
344 359Right-handed alpha
Helix 80
80
E
6 16Right-handed alpha
Helix 81
81
E
36 49Right-handed alpha
Helix 82
82
E
62 70Right-handed alpha
Helix 83
83
E
89 101Right-handed alpha
Helix 84
84
E
116 120Right-handed 310
Helix 85
85
E
121 134Right-handed alpha
Helix 86
86
E
168 180Right-handed alpha
Helix 87
87
E
183 193Right-handed alpha
Helix 88
88
E
197 207Right-handed alpha
Helix 89
89
E
208 227Right-handed alpha
Helix 90
90
E
228 231Right-handed 310
Helix 91
91
E
232 237Right-handed alpha
Helix 92
92
E
240 260Right-handed alpha
Helix 93
93
E
270 281Right-handed alpha
Helix 94
94
E
282 302Right-handed alpha
Helix 95
95
E
307 323Right-handed alpha
Helix 96
96
F
8 16Right-handed alpha
Helix 97
97
F
27 46Right-handed alpha
Helix 98
98
F
60 74Right-handed alpha
Helix 99
99
F
92 102Right-handed alpha
Helix 100
100
F
124 131Right-handed alpha
Helix 101
101
F
145 158Right-handed alpha
Helix 102
102
F
163 173Right-handed alpha
Helix 103
103
F
177 192Right-handed alpha
Helix 104
104
F
198 210Right-handed alpha
Helix 105
105
F
213 222Right-handed alpha
Helix 106
106
F
225 234Right-handed alpha
Helix 107
107
F
242 262Right-handed alpha
Helix 108
108
F
268 276Right-handed alpha
Helix 109
109
F
281 293Right-handed alpha
Helix 110
110
F
294 315Right-handed alpha
Helix 111
111
F
319 331Right-handed alpha
Helix 112
112
G
5 10Right-handed alpha
Helix 113
113
G
14 18Right-handed 310
Helix 114
114
G
21 34Right-handed alpha
Helix 115
115
G
50 64Right-handed alpha
Helix 116
116
G
76 85Right-handed alpha
Helix 117
117
G
100 110Right-handed alpha
Helix 118
118
G
127 131Right-handed 310
Helix 119
119
G
132 145Right-handed alpha
Helix 120
120
G
158 162Right-handed 310
Helix 121
121
G
163 168Right-handed alpha
Helix 122
122
G
179 194Right-handed alpha
Helix 123
123
G
199 210Right-handed alpha
Helix 124
124
G
213 229Right-handed alpha
Helix 125
125
G
233 238Right-handed alpha
Helix 126
126
G
250 258Right-handed alpha
Helix 127
127
G
260 274Right-handed alpha
Helix 128
128
G
277 295Right-handed alpha
Helix 129
129
G
298 302Right-handed 310
Helix 130
130
G
309 320Right-handed alpha
Helix 131
131
G
321 339Right-handed alpha
Helix 132
132
G
340 342Right-handed 310
Helix 133
133
G
344 359Right-handed alpha
Helix 134
134
H
5 10Right-handed alpha
Helix 135
135
H
21 35Right-handed alpha
Helix 136
136
H
50 63Right-handed alpha
Helix 137
137
H
76 84Right-handed alpha
Helix 138
138
H
100 110Right-handed alpha
Helix 139
139
H
127 131Right-handed 310
Helix 140
140
H
132 145Right-handed alpha
Helix 141
141
H
158 162Right-handed 310
Helix 142
142
H
163 168Right-handed alpha
Helix 143
143
H
179 195Right-handed alpha
Helix 144
144
H
199 210Right-handed alpha
Helix 145
145
H
213 228Right-handed alpha
Helix 146
146
H
233 241Right-handed alpha
Helix 147
147
H
247 259Right-handed alpha
Helix 148
148
H
260 274Right-handed alpha
Helix 149
149
H
277 296Right-handed alpha
Helix 150
150
H
304 308Right-handed 310
Helix 151
151
H
309 320Right-handed alpha
Helix 152
152
H
321 339Right-handed alpha
Helix 153
153
H
344 359Right-handed alpha
Helix 154
154
I
5 10Right-handed alpha
Helix 155
155
I
14 18Right-handed 310
Helix 156
156
I
21 34Right-handed alpha
Helix 157
157
I
50 64Right-handed alpha
Helix 158
158
I
76 85Right-handed alpha
Helix 159
159
I
100 110Right-handed alpha
Helix 160
160
I
127 131Right-handed 310
Helix 161
161
I
132 145Right-handed alpha
Helix 162
162
I
158 162Right-handed 310
Helix 163
163
I
163 168Right-handed alpha
Helix 164
164
I
179 194Right-handed alpha
Helix 165
165
I
199 210Right-handed alpha
Helix 166
166
I
213 228Right-handed alpha
Helix 167
167
I
233 241Right-handed alpha
Helix 168
168
I
247 257Right-handed alpha
Helix 169
169
I
261 274Right-handed alpha
Helix 170
170
I
277 298Right-handed alpha
Helix 171
171
I
304 308Right-handed 310
Helix 172
172
I
309 320Right-handed alpha
Helix 173
173
I
321 339Right-handed alpha
Helix 174
174
I
344 359Right-handed alpha
Helix 175
175
J
6 16Right-handed alpha
Helix 176
176
J
36 49Right-handed alpha
Helix 177
177
J
62 70Right-handed alpha
Helix 178
178
J
89 101Right-handed alpha
Helix 179
179
J
116 120Right-handed 310
Helix 180
180
J
121 134Right-handed alpha
Helix 181
181
J
168 180Right-handed alpha
Helix 182
182
J
183 193Right-handed alpha
Helix 183
183
J
197 207Right-handed alpha
Helix 184
184
J
208 227Right-handed alpha
Helix 185
185
J
228 231Right-handed 310
Helix 186
186
J
232 237Right-handed alpha
Helix 187
187
J
240 260Right-handed alpha
Helix 188
188
J
270 281Right-handed alpha
Helix 189
189
J
282 302Right-handed alpha
Helix 190
190
J
307 323Right-handed alpha
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There are 14 sheets in PDB entry 1XXI. 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,

There are 6 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
2 4first strand
Strand 2
A
135 139parallel
Strand 3
A
20 25parallel
Strand 4
A
110 114parallel
Strand 5
A
78 83parallel
Strand 6
A
49 54parallel
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There are 2 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 162first strand
Strand 2
A
196 197parallel
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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
B
90 94first strand
Strand 2
B
121 126parallel
Strand 3
B
150 156parallel
Strand 4
B
40 44parallel
Strand 5
B
171 174parallel
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There are 5 strands in D sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
C
91 94first strand
Strand 2
C
121 126parallel
Strand 3
C
150 156parallel
Strand 4
C
40 44parallel
Strand 5
C
171 174parallel
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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
D
90 94first strand
Strand 2
D
121 126parallel
Strand 3
D
150 156parallel
Strand 4
D
40 44parallel
Strand 5
D
171 174parallel
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There are 2 strands in F sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
D
197 198first strand
Strand 2
D
231 232parallel
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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
E
76 79first strand
Strand 2
E
110 114parallel
Strand 3
E
139 145parallel
Strand 4
E
26 30parallel
Strand 5
E
160 163parallel
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There are 6 strands in H sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
F
2 4first strand
Strand 2
F
135 139parallel
Strand 3
F
20 25parallel
Strand 4
F
109 114parallel
Strand 5
F
79 83parallel
Strand 6
F
50 52parallel
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There are 2 strands in I sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
F
161 162first strand
Strand 2
F
196 197parallel
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There are 5 strands in J sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
G
90 94first strand
Strand 2
G
121 126parallel
Strand 3
G
150 156parallel
Strand 4
G
40 44parallel
Strand 5
G
171 174parallel
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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
H
91 94first strand
Strand 2
H
121 126parallel
Strand 3
H
150 156parallel
Strand 4
H
40 44parallel
Strand 5
H
171 174parallel
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There are 5 strands in L sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
I
90 94first strand
Strand 2
I
121 126parallel
Strand 3
I
150 156parallel
Strand 4
I
40 44parallel
Strand 5
I
171 174parallel
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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
I
197 198first strand
Strand 2
I
231 232parallel
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There are 5 strands in N sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
J
76 79first strand
Strand 2
J
110 114parallel
Strand 3
J
139 145parallel
Strand 4
J
26 30parallel
Strand 5
J
160 163parallel
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