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


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 4NEC entry

There are 12 chains in PDB entry 4NEC (CSU analysis of residue contacts immediately below table)
Chain ID Initial residueTerminal residue
A
 HIS 0HIS 239
E
 ALA 2ALA 2
E
 ALA 6ALA 6
B
 HIS 0HIS 243
F
 ALA 2ALA 2
F
 ALA 6ALA 6
C
 MET 1HIS 240
G
 ALA 2ALA 2
G
 ALA 6ALA 6
D
 HIS 0HIS 241
H
 ALA 2ALA 2
H
 ALA 6ALA 6
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 38 helices in PDB entry 4NEC. Click on helix of interest for CSU analysis.
Helix
number 		Helix
ID		Chain
ID		 Initial
residue		Terminal
residue		 Helix class
Helix 1
1
A
0 11Right-handed alpha
Helix 2
2
A
27 36Right-handed alpha
Helix 3
3
A
51 59Right-handed alpha
Helix 4
4
A
70 85Right-handed alpha
Helix 5
5
A
113 117Right-handed 310
Helix 6
6
A
119 132Right-handed alpha
Helix 7
7
A
145 160Right-handed alpha
Helix 8
8
A
179 187Right-handed alpha
Helix 9
9
A
227 239Right-handed alpha
Helix 10
10
B
1 11Right-handed alpha
Helix 11
11
B
27 36Right-handed alpha
Helix 12
12
B
51 60Right-handed alpha
Helix 13
13
B
70 85Right-handed alpha
Helix 14
14
B
113 117Right-handed 310
Helix 15
15
B
118 132Right-handed alpha
Helix 16
16
B
145 160Right-handed alpha
Helix 17
17
B
173 177Right-handed 310
Helix 18
18
B
179 187Right-handed alpha
Helix 19
19
B
227 238Right-handed alpha
Helix 20
20
C
2 10Right-handed alpha
Helix 21
21
C
27 36Right-handed alpha
Helix 22
22
C
51 60Right-handed alpha
Helix 23
23
C
70 85Right-handed alpha
Helix 24
24
C
113 117Right-handed 310
Helix 25
25
C
118 132Right-handed alpha
Helix 26
26
C
145 160Right-handed alpha
Helix 27
27
C
179 187Right-handed alpha
Helix 28
28
C
227 237Right-handed alpha
Helix 29
29
D
1 10Right-handed alpha
Helix 30
30
D
27 36Right-handed alpha
Helix 31
31
D
51 60Right-handed alpha
Helix 32
32
D
70 85Right-handed alpha
Helix 33
33
D
113 117Right-handed 310
Helix 34
34
D
118 132Right-handed alpha
Helix 35
35
D
145 160Right-handed alpha
Helix 36
36
D
173 177Right-handed 310
Helix 37
37
D
179 187Right-handed alpha
Helix 38
38
D
227 238Right-handed alpha
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There are 4 sheets in PDB entry 4NEC. Click on sheet of interest to get list of strands forming it: A, B, C, D,

There are 7 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
89 92first strand
Strand 2
A
64 68parallel
Strand 3
A
43 46parallel
Strand 4
A
105 111parallel
Strand 5
A
133 144parallel
Strand 6
A
211 223anti-parallel
Strand 7
A
191 204anti-parallel
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There are 7 strands in B sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
B
89 92first strand
Strand 2
B
64 68parallel
Strand 3
B
43 46parallel
Strand 4
B
105 111parallel
Strand 5
B
133 144parallel
Strand 6
B
211 223anti-parallel
Strand 7
B
191 204anti-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
C
89 92first strand
Strand 2
C
63 68parallel
Strand 3
C
42 46parallel
Strand 4
C
105 111parallel
Strand 5
C
133 144parallel
Strand 6
C
211 223anti-parallel
Strand 7
C
191 204anti-parallel
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There are 7 strands in D sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
D
89 92first strand
Strand 2
D
63 68parallel
Strand 3
D
42 46parallel
Strand 4
D
105 111parallel
Strand 5
D
133 144parallel
Strand 6
D
211 223anti-parallel
Strand 7
D
191 204anti-parallel
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