Analysis of interatomic Contacts of Structural Units in PDB entry:
3N23


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 3N23 entry

There are 8 chains in PDB entry 3N23 (CSU analysis of residue contacts immediately below table)
Chain ID Initial residueTerminal residue
A
 MET 25SER 368
A
 LYS 370TYR 1016
B
 ARG 27SER 303
G
 ASP 17SER 47
C
 MET 25SER 368
C
 LYS 370TYR 1016
D
 ARG 27SER 303
E
 ASP 17SER 47
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 are108 helices in PDB entry 3N23. Click on helix of interest for CSU analysis.
Helix
number 		Helix
ID		Chain
ID		 Initial
residue		Terminal
residue		 Helix class
Helix 1
1
A
25 31Right-handed 310
Helix 2
2
A
42 49Right-handed alpha
Helix 3
3
A
57 69Right-handed alpha
Helix 4
4
A
81 90Right-handed 310
Helix 5
5
A
91 104Right-handed alpha
Helix 6
6
A
106 113Right-handed alpha
Helix 7
7
A
121 142Right-handed alpha
Helix 8
8
A
142 153Right-handed alpha
Helix 9
9
A
176 178Right-handed 310
Helix 10
10
A
254 257Right-handed 310
Helix 11
11
A
258 269Right-handed alpha
Helix 12
12
A
275 305Right-handed alpha
Helix 13
13
A
312 318Right-handed alpha
Helix 14
14
A
328 346Right-handed alpha
Helix 15
15
A
355 360Right-handed alpha
Helix 16
16
A
408 421Right-handed alpha
Helix 17
17
A
434 438Right-handed 310
Helix 18
18
A
443 457Right-handed alpha
Helix 19
19
A
460 467Right-handed alpha
Helix 20
20
A
503 509Right-handed alpha
Helix 21
21
A
526 541Right-handed alpha
Helix 22
22
A
591 603Right-handed alpha
Helix 23
23
A
613 624Right-handed alpha
Helix 24
24
A
633 641Right-handed alpha
Helix 25
25
A
644 648Right-handed 310
Helix 26
26
A
649 653Right-handed 310
Helix 27
27
A
660 664Right-handed alpha
Helix 28
28
A
667 678Right-handed alpha
Helix 29
29
A
687 700Right-handed alpha
Helix 30
30
A
711 713Right-handed 310
Helix 31
31
A
714 719Right-handed alpha
Helix 32
32
A
732 739Right-handed alpha
Helix 33
33
A
748 775Right-handed alpha
Helix 34
34
A
776 789Right-handed alpha
Helix 35
35
A
796 801Right-handed alpha
Helix 36
36
A
809 815Right-handed alpha
Helix 37
37
A
816 818Right-handed 310
Helix 38
38
A
839 847Right-handed alpha
Helix 39
39
A
849 869Right-handed alpha
Helix 40
40
A
873 877Right-handed 310
Helix 41
41
A
879 884Right-handed alpha
Helix 42
42
A
900 930Right-handed alpha
Helix 43
43
A
936 941Right-handed alpha
Helix 44
44
A
944 961Right-handed alpha
Helix 45
45
A
966 971Right-handed alpha
Helix 46
46
A
977 982Right-handed alpha
Helix 47
47
A
984 1005Right-handed alpha
Helix 48
48
A
1010 1015Right-handed alpha
Helix 49
49
B
31 58Right-handed alpha
Helix 50
50
B
95 97Right-handed 310
Helix 51
51
B
98 111Right-handed alpha
Helix 52
52
B
152 156Right-handed 310
Helix 53
53
G
22 31Right-handed alpha
Helix 54
54
G
33 46Right-handed alpha
Helix 55
55
C
25 31Right-handed 310
Helix 56
56
C
42 48Right-handed alpha
Helix 57
57
C
57 69Right-handed alpha
Helix 58
58
C
81 90Right-handed 310
Helix 59
59
C
91 104Right-handed alpha
Helix 60
60
C
106 113Right-handed alpha
Helix 61
61
C
121 142Right-handed alpha
Helix 62
62
C
142 153Right-handed alpha
Helix 63
63
C
176 178Right-handed 310
Helix 64
64
C
254 257Right-handed 310
Helix 65
65
C
258 269Right-handed alpha
Helix 66
66
C
275 305Right-handed alpha
Helix 67
67
C
312 318Right-handed alpha
Helix 68
68
C
328 346Right-handed alpha
Helix 69
69
C
355 360Right-handed alpha
Helix 70
70
C
408 421Right-handed alpha
Helix 71
71
C
434 438Right-handed 310
Helix 72
72
C
443 457Right-handed alpha
Helix 73
73
C
460 467Right-handed alpha
Helix 74
74
C
503 509Right-handed alpha
Helix 75
75
C
526 541Right-handed alpha
Helix 76
76
C
591 603Right-handed alpha
Helix 77
77
C
613 624Right-handed alpha
Helix 78
78
C
633 641Right-handed alpha
Helix 79
79
C
644 648Right-handed 310
Helix 80
80
C
649 653Right-handed 310
Helix 81
81
C
660 664Right-handed alpha
Helix 82
82
C
667 678Right-handed alpha
Helix 83
83
C
687 700Right-handed alpha
Helix 84
84
C
711 713Right-handed 310
Helix 85
85
C
714 719Right-handed alpha
Helix 86
86
C
732 739Right-handed alpha
Helix 87
87
C
749 775Right-handed alpha
Helix 88
88
C
776 789Right-handed alpha
Helix 89
89
C
796 801Right-handed alpha
Helix 90
90
C
809 815Right-handed alpha
Helix 91
91
C
816 818Right-handed 310
Helix 92
92
C
839 847Right-handed alpha
Helix 93
93
C
849 869Right-handed alpha
Helix 94
94
C
873 877Right-handed 310
Helix 95
95
C
879 884Right-handed alpha
Helix 96
96
C
900 930Right-handed alpha
Helix 97
97
C
936 941Right-handed alpha
Helix 98
98
C
944 961Right-handed alpha
Helix 99
99
C
966 971Right-handed alpha
Helix 100
100
C
977 982Right-handed alpha
Helix 101
101
C
984 1005Right-handed alpha
Helix 102
102
C
1010 1015Right-handed alpha
Helix 103
103
D
31 58Right-handed alpha
Helix 104
104
D
95 97Right-handed 310
Helix 105
105
D
98 111Right-handed alpha
Helix 106
106
D
152 156Right-handed 310
Helix 107
107
E
22 31Right-handed alpha
Helix 108
108
E
33 46Right-handed alpha
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There are 19 sheets in PDB entry 3N23. 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,

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
169 174first strand
Strand 2
A
161 166anti-parallel
Strand 3
A
183 186anti-parallel
Strand 4
A
241 253anti-parallel
Strand 5
A
195 207anti-parallel
Strand 6
A
235 236anti-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
349 351first strand
Strand 2
A
741 743anti-parallel
Strand 3
A
723 727parallel
Strand 4
A
705 709parallel
Strand 5
A
365 368parallel
Strand 6
A
605 609parallel
Strand 7
A
681 684parallel
Strand 8
A
658 659parallel
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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
A
389 392first strand
Strand 2
A
380 386anti-parallel
Strand 3
A
576 585anti-parallel
Strand 4
A
544 552anti-parallel
Strand 5
A
497 502anti-parallel
Strand 6
A
481 486anti-parallel
Strand 7
A
469 473anti-parallel
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There are 4 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
389 392first strand
Strand 2
A
380 386anti-parallel
Strand 3
A
576 585anti-parallel
Strand 4
A
511 514parallel
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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
425 426first strand
Strand 2
A
440 441anti-parallel
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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
A
891 892first strand
Strand 2
A
898 899anti-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
B
78 79first strand
Strand 2
B
178 179anti-parallel
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There are 5 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
87 89first strand
Strand 2
B
297 300parallel
Strand 3
B
272 278anti-parallel
Strand 4
B
208 214anti-parallel
Strand 5
B
237 239anti-parallel
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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
B
123 124first strand
Strand 2
B
148 149parallel
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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
B
227 230first strand
Strand 2
B
260 263anti-parallel
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There are 6 strands in K sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
C
169 174first strand
Strand 2
C
161 166anti-parallel
Strand 3
C
183 186anti-parallel
Strand 4
C
241 253anti-parallel
Strand 5
C
195 207anti-parallel
Strand 6
C
235 236anti-parallel
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There are 8 strands in L sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
C
349 351first strand
Strand 2
C
741 743anti-parallel
Strand 3
C
723 727parallel
Strand 4
C
705 709parallel
Strand 5
C
365 368parallel
Strand 6
C
605 609parallel
Strand 7
C
681 684parallel
Strand 8
C
658 659parallel
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There are 7 strands in M sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
C
389 392first strand
Strand 2
C
380 386anti-parallel
Strand 3
C
576 585anti-parallel
Strand 4
C
544 552anti-parallel
Strand 5
C
497 502anti-parallel
Strand 6
C
481 486anti-parallel
Strand 7
C
469 473anti-parallel
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There are 4 strands in N sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
C
389 392first strand
Strand 2
C
380 386anti-parallel
Strand 3
C
576 585anti-parallel
Strand 4
C
511 514parallel
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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
C
425 426first strand
Strand 2
C
440 441anti-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
C
891 892first strand
Strand 2
C
898 899anti-parallel
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There are 4 strands in Q sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
D
78 79first strand
Strand 2
D
176 179anti-parallel
Strand 3
D
259 263anti-parallel
Strand 4
D
227 230anti-parallel
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There are 5 strands in R sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
D
87 89first strand
Strand 2
D
297 300parallel
Strand 3
D
272 278anti-parallel
Strand 4
D
208 214anti-parallel
Strand 5
D
237 239anti-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
D
123 124first strand
Strand 2
D
148 149parallel
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Please mail questions/suggestions concerning this page to Vladimir.Sobolev@weizmann. ac.il