Analysis of interatomic Contacts of Structural Units in PDB entry:
4S2K


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 4S2K entry

There are 4 chains in PDB entry 4S2K (CSU analysis of residue contacts immediately below table)
Chain ID Initial residueTerminal residue
A
 GLU 24PRO 265
B
 VAL 21PRO 265
C
 VAL 21PRO 265
D
 GLU 24PRO 265
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 50 helices in PDB entry 4S2K. Click on helix of interest for CSU analysis.
Helix
number 		Helix
ID		Chain
ID		 Initial
residue		Terminal
residue		 Helix class
Helix 1
1
A
31 38Right-handed alpha
Helix 2
2
A
58 63Right-handed alpha
Helix 3
3
A
68 71Right-handed 310
Helix 4
4
A
72 83Right-handed alpha
Helix 5
5
A
102 106Right-handed 310
Helix 6
6
A
110 117Right-handed alpha
Helix 7
7
A
119 131Right-handed alpha
Helix 8
8
A
131 142Right-handed alpha
Helix 9
9
A
155 160Right-handed alpha
Helix 10
10
A
165 178Right-handed alpha
Helix 11
11
A
184 195Right-handed alpha
Helix 12
12
A
243 247Right-handed 310
Helix 13
13
A
248 261Right-handed alpha
Helix 14
14
B
31 37Right-handed alpha
Helix 15
15
B
58 63Right-handed alpha
Helix 16
16
B
68 71Right-handed 310
Helix 17
17
B
72 83Right-handed alpha
Helix 18
18
B
102 106Right-handed 310
Helix 19
19
B
110 117Right-handed alpha
Helix 20
20
B
119 143Right-handed alpha
Helix 21
21
B
155 160Right-handed alpha
Helix 22
22
B
165 178Right-handed alpha
Helix 23
23
B
184 195Right-handed alpha
Helix 24
24
B
243 247Right-handed 310
Helix 25
25
B
248 261Right-handed alpha
Helix 26
26
C
31 37Right-handed alpha
Helix 27
27
C
58 63Right-handed alpha
Helix 28
28
C
68 71Right-handed 310
Helix 29
29
C
72 83Right-handed alpha
Helix 30
30
C
102 106Right-handed 310
Helix 31
31
C
110 117Right-handed alpha
Helix 32
32
C
119 143Right-handed alpha
Helix 33
33
C
155 160Right-handed alpha
Helix 34
34
C
166 178Right-handed alpha
Helix 35
35
C
184 195Right-handed alpha
Helix 36
36
C
243 247Right-handed 310
Helix 37
37
C
248 261Right-handed alpha
Helix 38
38
D
31 38Right-handed alpha
Helix 39
39
D
58 63Right-handed alpha
Helix 40
40
D
68 71Right-handed 310
Helix 41
41
D
72 83Right-handed alpha
Helix 42
42
D
102 106Right-handed 310
Helix 43
43
D
110 117Right-handed alpha
Helix 44
44
D
119 131Right-handed alpha
Helix 45
45
D
131 142Right-handed alpha
Helix 46
46
D
155 160Right-handed alpha
Helix 47
47
D
165 178Right-handed alpha
Helix 48
48
D
184 195Right-handed alpha
Helix 49
49
D
243 247Right-handed 310
Helix 50
50
D
248 261Right-handed alpha
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There are 5 sheets in PDB entry 4S2K. Click on sheet of interest to get list of strands forming it: A, B, C, D, E,

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
25 27first strand
Strand 2
A
53 56parallel
Strand 3
A
42 48anti-parallel
Strand 4
A
232 240anti-parallel
Strand 5
A
219 227anti-parallel
Strand 6
A
204 212anti-parallel
Strand 7
A
196 199anti-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
25 27first strand
Strand 2
B
53 56parallel
Strand 3
B
42 48anti-parallel
Strand 4
B
232 240anti-parallel
Strand 5
B
219 227anti-parallel
Strand 6
B
204 212anti-parallel
Strand 7
B
196 199anti-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
25 27first strand
Strand 2
C
53 56parallel
Strand 3
C
42 48anti-parallel
Strand 4
C
232 240anti-parallel
Strand 5
C
219 227anti-parallel
Strand 6
C
204 212anti-parallel
Strand 7
C
196 199anti-parallel
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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
C
65 66first strand
Strand 2
C
164 165anti-parallel
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There are 7 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
25 27first strand
Strand 2
D
53 56parallel
Strand 3
D
42 48anti-parallel
Strand 4
D
232 240anti-parallel
Strand 5
D
219 227anti-parallel
Strand 6
D
204 212anti-parallel
Strand 7
D
196 199anti-parallel
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