Analysis of interatomic Contacts of Structural Units in PDB entry:
1R27


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 1R27 entry

There are 4 chains in PDB entry 1R27 (CSU analysis of residue contacts immediately below table)
Chain ID Initial residueTerminal residue
A
 ARG 29LYS 1246
B
 MET 1LEU 465
C
 ARG 29LYS 1246
D
 MET 1LEU 465
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 are160 helices in PDB entry 1R27. Click on helix of interest for CSU analysis.
Helix
number 		Helix
ID		Chain
ID		 Initial
residue		Terminal
residue		 Helix class
Helix 1
1
A
29 31Right-handed 310
Helix 2
2
A
32 40Right-handed alpha
Helix 3
3
A
92 97Right-handed alpha
Helix 4
4
A
98 102Right-handed 310
Helix 5
5
A
115 128Right-handed alpha
Helix 6
6
A
130 140Right-handed alpha
Helix 7
7
A
141 150Right-handed alpha
Helix 8
8
A
161 180Right-handed alpha
Helix 9
9
A
181 183Right-handed 310
Helix 10
10
A
191 194Right-handed 310
Helix 11
11
A
195 210Right-handed alpha
Helix 12
12
A
225 232Right-handed alpha
Helix 13
13
A
239 246Right-handed 310
Helix 14
14
A
255 260Right-handed alpha
Helix 15
15
A
263 271Right-handed alpha
Helix 16
16
A
272 274Right-handed 310
Helix 17
17
A
285 290Right-handed alpha
Helix 18
18
A
301 318Right-handed alpha
Helix 19
19
A
323 334Right-handed alpha
Helix 20
20
A
356 366Right-handed 310
Helix 21
21
A
369 373Right-handed 310
Helix 22
22
A
389 393Right-handed 310
Helix 23
23
A
473 481Right-handed alpha
Helix 24
24
A
503 512Right-handed alpha
Helix 25
25
A
514 533Right-handed alpha
Helix 26
26
A
541 546Right-handed alpha
Helix 27
27
A
549 564Right-handed alpha
Helix 28
28
A
585 594Right-handed alpha
Helix 29
29
A
606 615Right-handed alpha
Helix 30
30
A
616 621Right-handed 310
Helix 31
31
A
624 629Right-handed 310
Helix 32
32
A
634 638Right-handed 310
Helix 33
33
A
641 652Right-handed alpha
Helix 34
34
A
667 675Right-handed alpha
Helix 35
35
A
678 690Right-handed alpha
Helix 36
36
A
694 698Right-handed 310
Helix 37
37
A
715 719Right-handed 310
Helix 38
38
A
723 731Right-handed alpha
Helix 39
39
A
743 747Right-handed 310
Helix 40
40
A
776 781Right-handed alpha
Helix 41
41
A
821 837Right-handed alpha
Helix 42
42
A
856 860Right-handed 310
Helix 43
43
A
868 872Right-handed 310
Helix 44
44
A
894 900Right-handed alpha
Helix 45
45
A
904 909Right-handed alpha
Helix 46
46
A
920 932Right-handed alpha
Helix 47
47
A
947 959Right-handed alpha
Helix 48
48
A
963 979Right-handed alpha
Helix 49
49
A
982 990Right-handed 310
Helix 50
50
A
995 1002Right-handed alpha
Helix 51
51
A
1025 1032Right-handed alpha
Helix 52
52
A
1048 1054Right-handed alpha
Helix 53
53
A
1104 1111Right-handed alpha
Helix 54
54
A
1121 1128Right-handed alpha
Helix 55
55
A
1183 1187Right-handed 310
Helix 56
56
A
1193 1197Right-handed 310
Helix 57
57
B
20 31Right-handed alpha
Helix 58
58
B
58 63Right-handed alpha
Helix 59
59
B
80 87Right-handed alpha
Helix 60
60
B
96 101Right-handed alpha
Helix 61
61
B
108 114Right-handed alpha
Helix 62
62
B
151 156Right-handed alpha
Helix 63
63
B
157 162Right-handed 310
Helix 64
64
B
166 175Right-handed 310
Helix 65
65
B
190 196Right-handed alpha
Helix 66
66
B
221 227Right-handed alpha
Helix 67
67
B
247 252Right-handed alpha
Helix 68
68
B
257 262Right-handed alpha
Helix 69
69
B
279 285Right-handed alpha
Helix 70
70
B
288 290Right-handed 310
Helix 71
71
B
291 298Right-handed alpha
Helix 72
72
B
305 315Right-handed alpha
Helix 73
73
B
318 326Right-handed alpha
Helix 74
74
B
328 335Right-handed alpha
Helix 75
75
B
344 348Right-handed 310
Helix 76
76
B
379 383Right-handed 310
Helix 77
77
B
386 395Right-handed alpha
Helix 78
78
B
398 421Right-handed alpha
Helix 79
79
B
427 433Right-handed alpha
Helix 80
80
B
436 448Right-handed alpha
Helix 81
81
B
451 455Right-handed alpha
Helix 82
82
C
29 31Right-handed 310
Helix 83
83
C
32 40Right-handed alpha
Helix 84
84
C
92 97Right-handed alpha
Helix 85
85
C
98 102Right-handed 310
Helix 86
86
C
115 127Right-handed alpha
Helix 87
87
C
130 140Right-handed alpha
Helix 88
88
C
141 150Right-handed alpha
Helix 89
89
C
161 180Right-handed alpha
Helix 90
90
C
181 183Right-handed 310
Helix 91
91
C
191 194Right-handed 310
Helix 92
92
C
195 210Right-handed alpha
Helix 93
93
C
225 232Right-handed alpha
Helix 94
94
C
239 246Right-handed 310
Helix 95
95
C
255 260Right-handed alpha
Helix 96
96
C
263 271Right-handed alpha
Helix 97
97
C
272 274Right-handed 310
Helix 98
98
C
285 290Right-handed alpha
Helix 99
99
C
301 318Right-handed alpha
Helix 100
100
C
323 334Right-handed alpha
Helix 101
101
C
356 366Right-handed 310
Helix 102
102
C
369 373Right-handed 310
Helix 103
103
C
389 393Right-handed 310
Helix 104
104
C
473 481Right-handed alpha
Helix 105
105
C
503 512Right-handed alpha
Helix 106
106
C
514 533Right-handed alpha
Helix 107
107
C
541 546Right-handed alpha
Helix 108
108
C
549 564Right-handed alpha
Helix 109
109
C
585 594Right-handed alpha
Helix 110
110
C
606 615Right-handed alpha
Helix 111
111
C
616 621Right-handed 310
Helix 112
112
C
625 629Right-handed 310
Helix 113
113
C
634 638Right-handed 310
Helix 114
114
C
641 652Right-handed alpha
Helix 115
115
C
667 675Right-handed alpha
Helix 116
116
C
678 689Right-handed alpha
Helix 117
117
C
694 698Right-handed 310
Helix 118
118
C
723 731Right-handed alpha
Helix 119
119
C
776 781Right-handed alpha
Helix 120
120
C
821 837Right-handed alpha
Helix 121
121
C
856 860Right-handed 310
Helix 122
122
C
868 872Right-handed 310
Helix 123
123
C
894 900Right-handed alpha
Helix 124
124
C
904 909Right-handed alpha
Helix 125
125
C
920 932Right-handed alpha
Helix 126
126
C
947 959Right-handed alpha
Helix 127
127
C
963 979Right-handed alpha
Helix 128
128
C
982 990Right-handed 310
Helix 129
129
C
995 1002Right-handed alpha
Helix 130
130
C
1025 1032Right-handed alpha
Helix 131
131
C
1048 1054Right-handed alpha
Helix 132
132
C
1104 1111Right-handed alpha
Helix 133
133
C
1121 1128Right-handed alpha
Helix 134
134
C
1183 1187Right-handed 310
Helix 135
135
C
1193 1198Right-handed 310
Helix 136
136
D
20 31Right-handed alpha
Helix 137
137
D
58 63Right-handed alpha
Helix 138
138
D
80 87Right-handed alpha
Helix 139
139
D
96 101Right-handed alpha
Helix 140
140
D
108 114Right-handed alpha
Helix 141
141
D
151 156Right-handed alpha
Helix 142
142
D
157 162Right-handed 310
Helix 143
143
D
166 175Right-handed 310
Helix 144
144
D
190 195Right-handed alpha
Helix 145
145
D
221 227Right-handed alpha
Helix 146
146
D
247 252Right-handed alpha
Helix 147
147
D
257 262Right-handed alpha
Helix 148
148
D
279 285Right-handed alpha
Helix 149
149
D
288 290Right-handed 310
Helix 150
150
D
291 298Right-handed alpha
Helix 151
151
D
305 315Right-handed alpha
Helix 152
152
D
318 326Right-handed alpha
Helix 153
153
D
328 335Right-handed alpha
Helix 154
154
D
344 348Right-handed 310
Helix 155
155
D
379 383Right-handed 310
Helix 156
156
D
386 395Right-handed alpha
Helix 157
157
D
398 421Right-handed alpha
Helix 158
158
D
427 434Right-handed alpha
Helix 159
159
D
436 448Right-handed alpha
Helix 160
160
D
451 455Right-handed alpha
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There are 32 sheets in PDB entry 1R27. 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, AF,

There are 3 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
43 47first strand
Strand 2
A
59 64anti-parallel
Strand 3
A
67 73anti-parallel
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There are 8 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
157 159first strand
Strand 2
A
112 114anti-parallel
Strand 3
A
784 787anti-parallel
Strand 4
A
767 772parallel
Strand 5
A
708 712parallel
Strand 6
A
185 188parallel
Strand 7
A
212 214parallel
Strand 8
A
604 605parallel
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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
A
293 295first strand
Strand 2
A
276 280parallel
Strand 3
A
248 252parallel
Strand 4
A
536 540parallel
Strand 5
A
573 576parallel
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There are 6 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
339 344first strand
Strand 2
A
349 354anti-parallel
Strand 3
A
425 432parallel
Strand 4
A
450 461anti-parallel
Strand 5
A
467 472anti-parallel
Strand 6
A
339 344anti-parallel
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There are 2 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
376 377first strand
Strand 2
A
383 384anti-parallel
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There are 3 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
793 798first strand
Strand 2
A
805 811anti-parallel
Strand 3
A
1004 1005anti-parallel
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There are 2 strands in G sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
A
843 850first strand
Strand 2
A
884 891anti-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
A
911 913first strand
Strand 2
A
916 918anti-parallel
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There are 7 strands in I sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
A
1084 1089first strand
Strand 2
A
1158 1160parallel
Strand 3
A
1116 1120anti-parallel
Strand 4
A
1142 1151parallel
Strand 5
A
1134 1139anti-parallel
Strand 6
A
1221 1226anti-parallel
Strand 7
A
1084 1089anti-parallel
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There are 2 strands in J sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
A
1229 1230first strand
Strand 2
A
1240 1241anti-parallel
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There are 4 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
353 356first strand
Strand 2
B
3 12parallel
Strand 3
B
268 276anti-parallel
Strand 4
B
456 457parallel
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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
43 47first strand
Strand 2
B
178 182anti-parallel
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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
B
66 68first strand
Strand 2
B
74 76anti-parallel
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There are 2 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
104 106first strand
Strand 2
B
126 128anti-parallel
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There are 2 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
201 203first strand
Strand 2
B
210 212anti-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
232 235first strand
Strand 2
B
240 243anti-parallel
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There are 3 strands in Q sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
C
43 47first strand
Strand 2
C
59 64anti-parallel
Strand 3
C
67 73anti-parallel
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There are 8 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
157 159first strand
Strand 2
C
112 114anti-parallel
Strand 3
C
784 787anti-parallel
Strand 4
C
767 772parallel
Strand 5
C
708 712parallel
Strand 6
C
185 188parallel
Strand 7
C
212 214parallel
Strand 8
C
603 605parallel
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There are 5 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
293 295first strand
Strand 2
C
276 280parallel
Strand 3
C
248 252parallel
Strand 4
C
536 540parallel
Strand 5
C
573 576parallel
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There are 6 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
339 344first strand
Strand 2
C
349 354anti-parallel
Strand 3
C
425 432parallel
Strand 4
C
450 461anti-parallel
Strand 5
C
467 472anti-parallel
Strand 6
C
339 344anti-parallel
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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
376 377first strand
Strand 2
C
383 384anti-parallel
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There are 3 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
793 798first strand
Strand 2
C
805 811anti-parallel
Strand 3
C
1004 1005anti-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
843 850first strand
Strand 2
C
884 891anti-parallel
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There are 2 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
911 913first strand
Strand 2
C
916 918anti-parallel
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There are 7 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
1084 1089first strand
Strand 2
C
1158 1160parallel
Strand 3
C
1116 1120anti-parallel
Strand 4
C
1142 1151parallel
Strand 5
C
1134 1139anti-parallel
Strand 6
C
1221 1226anti-parallel
Strand 7
C
1084 1089anti-parallel
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There are 2 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
1229 1230first strand
Strand 2
C
1240 1241anti-parallel
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There are 4 strands in AA sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
D
353 356first strand
Strand 2
D
3 12parallel
Strand 3
D
268 276anti-parallel
Strand 4
D
456 457parallel
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There are 2 strands in AB sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
D
43 47first strand
Strand 2
D
178 182anti-parallel
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There are 2 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
66 68first strand
Strand 2
D
74 76anti-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
D
104 106first strand
Strand 2
D
126 128anti-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
D
201 203first strand
Strand 2
D
210 212anti-parallel
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There are 2 strands in AF sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
D
232 235first strand
Strand 2
D
240 243anti-parallel
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