Analysis of interatomic Contacts of Structural Units in PDB entry:
4NEK


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 4NEK entry

There are 6 chains in PDB entry 4NEK (CSU analysis of residue contacts immediately below table)
Chain ID Initial residueTerminal residue
A
 SER 2LYS 252
B
 MSE 1SER 251
C
 MSE 1LYS 252
D
 SER 2LYS 252
E
 SER 2LYS 252
F
 MSE 1LYS 252
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 are 82 helices in PDB entry 4NEK. Click on helix of interest for CSU analysis.
Helix
number 		Helix
ID		Chain
ID		 Initial
residue		Terminal
residue		 Helix class
Helix 1
1
A
20 24Right-handed 310
Helix 2
2
A
28 45Right-handed alpha
Helix 3
3
A
65 70Right-handed alpha
Helix 4
4
A
78 89Right-handed alpha
Helix 5
5
A
104 109Right-handed alpha
Helix 6
6
A
110 113Right-handed 310
Helix 7
7
A
127 132Right-handed 310
Helix 8
8
A
138 148Right-handed alpha
Helix 9
9
A
148 157Right-handed alpha
Helix 10
10
A
163 170Right-handed alpha
Helix 11
11
A
178 195Right-handed alpha
Helix 12
12
A
197 209Right-handed alpha
Helix 13
13
A
214 231Right-handed alpha
Helix 14
14
A
232 244Right-handed alpha
Helix 15
15
B
20 24Right-handed 310
Helix 16
16
B
28 45Right-handed alpha
Helix 17
17
B
65 70Right-handed alpha
Helix 18
18
B
78 89Right-handed alpha
Helix 19
19
B
104 109Right-handed alpha
Helix 20
20
B
110 113Right-handed 310
Helix 21
21
B
127 132Right-handed 310
Helix 22
22
B
138 148Right-handed alpha
Helix 23
23
B
148 157Right-handed alpha
Helix 24
24
B
163 170Right-handed alpha
Helix 25
25
B
178 195Right-handed alpha
Helix 26
26
B
197 209Right-handed alpha
Helix 27
27
B
214 231Right-handed alpha
Helix 28
28
B
232 244Right-handed alpha
Helix 29
29
C
20 24Right-handed 310
Helix 30
30
C
28 45Right-handed alpha
Helix 31
31
C
65 70Right-handed alpha
Helix 32
32
C
78 89Right-handed alpha
Helix 33
33
C
104 109Right-handed alpha
Helix 34
34
C
110 113Right-handed 310
Helix 35
35
C
127 132Right-handed 310
Helix 36
36
C
138 148Right-handed alpha
Helix 37
37
C
148 157Right-handed alpha
Helix 38
38
C
163 170Right-handed alpha
Helix 39
39
C
178 195Right-handed alpha
Helix 40
40
C
197 209Right-handed alpha
Helix 41
41
C
214 231Right-handed alpha
Helix 42
42
C
232 244Right-handed alpha
Helix 43
43
D
20 24Right-handed 310
Helix 44
44
D
28 45Right-handed alpha
Helix 45
45
D
65 70Right-handed alpha
Helix 46
46
D
78 89Right-handed alpha
Helix 47
47
D
104 109Right-handed alpha
Helix 48
48
D
110 113Right-handed 310
Helix 49
49
D
127 132Right-handed 310
Helix 50
50
D
138 148Right-handed alpha
Helix 51
51
D
148 157Right-handed alpha
Helix 52
52
D
163 170Right-handed alpha
Helix 53
53
D
178 195Right-handed alpha
Helix 54
54
D
197 209Right-handed alpha
Helix 55
55
D
214 231Right-handed alpha
Helix 56
56
D
232 244Right-handed alpha
Helix 57
57
E
20 24Right-handed 310
Helix 58
58
E
28 45Right-handed alpha
Helix 59
59
E
65 70Right-handed alpha
Helix 60
60
E
78 89Right-handed alpha
Helix 61
61
E
104 109Right-handed alpha
Helix 62
62
E
110 113Right-handed 310
Helix 63
63
E
127 132Right-handed 310
Helix 64
64
E
138 157Right-handed alpha
Helix 65
65
E
163 170Right-handed alpha
Helix 66
66
E
178 195Right-handed alpha
Helix 67
67
E
197 209Right-handed alpha
Helix 68
68
E
214 231Right-handed alpha
Helix 69
69
E
232 244Right-handed alpha
Helix 70
70
F
20 24Right-handed 310
Helix 71
71
F
28 45Right-handed alpha
Helix 72
72
F
65 70Right-handed alpha
Helix 73
73
F
78 89Right-handed alpha
Helix 74
74
F
104 109Right-handed alpha
Helix 75
75
F
110 113Right-handed 310
Helix 76
76
F
127 132Right-handed 310
Helix 77
77
F
138 157Right-handed alpha
Helix 78
78
F
163 170Right-handed alpha
Helix 79
79
F
178 195Right-handed alpha
Helix 80
80
F
197 209Right-handed alpha
Helix 81
81
F
214 231Right-handed alpha
Helix 82
82
F
232 244Right-handed alpha
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There are 12 sheets in PDB entry 4NEK. Click on sheet of interest to get list of strands forming it: A, B, C, D, E, F, G, H, I, J, K, L,

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
5 10first strand
Strand 2
A
13 18anti-parallel
Strand 3
A
50 54parallel
Strand 4
A
94 98parallel
Strand 5
A
115 118parallel
Strand 6
A
175 176parallel
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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
101 103first strand
Strand 2
A
123 125parallel
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There are 6 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
5 10first strand
Strand 2
B
13 18anti-parallel
Strand 3
B
50 54parallel
Strand 4
B
94 98parallel
Strand 5
B
115 118parallel
Strand 6
B
175 176parallel
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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
B
101 103first strand
Strand 2
B
123 125parallel
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There are 6 strands in E sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
C
5 10first strand
Strand 2
C
13 18anti-parallel
Strand 3
C
50 54parallel
Strand 4
C
94 98parallel
Strand 5
C
115 118parallel
Strand 6
C
175 176parallel
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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
C
101 103first strand
Strand 2
C
123 125parallel
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There are 6 strands in G sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
D
5 10first strand
Strand 2
D
13 18anti-parallel
Strand 3
D
50 54parallel
Strand 4
D
94 98parallel
Strand 5
D
115 118parallel
Strand 6
D
175 176parallel
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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
D
101 103first strand
Strand 2
D
123 125parallel
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There are 6 strands in I sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
E
5 10first strand
Strand 2
E
13 18anti-parallel
Strand 3
E
50 54parallel
Strand 4
E
94 98parallel
Strand 5
E
115 118parallel
Strand 6
E
175 176parallel
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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
E
101 103first strand
Strand 2
E
123 125parallel
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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
F
5 10first strand
Strand 2
F
13 18anti-parallel
Strand 3
F
50 54parallel
Strand 4
F
94 98parallel
Strand 5
F
115 118parallel
Strand 6
F
175 176parallel
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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
F
101 103first strand
Strand 2
F
123 125parallel
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