Analysis of interatomic Contacts of Structural Units in PDB entry:
4K2A


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 4K2A entry

There are 4 chains in PDB entry 4K2A (CSU analysis of residue contacts immediately below table)
Chain ID Initial residueTerminal residue
A
 ASP 6ALA 301
B
 ASP 6SER 296
C
 ASP 6GLU 304
D
 ASP 6ALA 297
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 70 helices in PDB entry 4K2A. Click on helix of interest for CSU analysis.
Helix
number 		Helix
ID		Chain
ID		 Initial
residue		Terminal
residue		 Helix class
Helix 1
37
A
41 46Right-handed 310
Helix 2
38
A
48 53Right-handed alpha
Helix 3
39
A
77 92Right-handed alpha
Helix 4
40
A
103 116Right-handed alpha
Helix 5
41
A
134 138Right-handed 310
Helix 6
42
A
141 152Right-handed alpha
Helix 7
43
A
155 162Right-handed alpha
Helix 8
44
A
165 170Right-handed alpha
Helix 9
45
A
170 175Right-handed alpha
Helix 10
46
A
181 190Right-handed alpha
Helix 11
47
A
191 193Right-handed 310
Helix 12
48
A
195 197Right-handed 310
Helix 13
49
A
198 208Right-handed alpha
Helix 14
50
A
214 231Right-handed alpha
Helix 15
51
A
247 256Right-handed alpha
Helix 16
52
A
272 276Right-handed 310
Helix 17
53
A
277 298Right-handed alpha
Helix 18
54
B
41 46Right-handed 310
Helix 19
55
B
48 53Right-handed alpha
Helix 20
56
B
77 92Right-handed alpha
Helix 21
57
B
103 116Right-handed alpha
Helix 22
58
B
134 138Right-handed 310
Helix 23
59
B
141 152Right-handed alpha
Helix 24
60
B
155 162Right-handed alpha
Helix 25
61
B
165 170Right-handed alpha
Helix 26
62
B
170 175Right-handed alpha
Helix 27
63
B
181 190Right-handed alpha
Helix 28
64
B
191 193Right-handed 310
Helix 29
65
B
195 197Right-handed 310
Helix 30
66
B
198 208Right-handed alpha
Helix 31
67
B
214 231Right-handed alpha
Helix 32
68
B
247 257Right-handed alpha
Helix 33
69
B
272 276Right-handed 310
Helix 34
70
B
277 296Right-handed alpha
Helix 35
1
C
41 46Right-handed 310
Helix 36
2
C
48 53Right-handed alpha
Helix 37
3
C
54 56Right-handed 310
Helix 38
4
C
77 92Right-handed alpha
Helix 39
5
C
103 116Right-handed alpha
Helix 40
6
C
134 138Right-handed 310
Helix 41
7
C
141 152Right-handed alpha
Helix 42
8
C
155 162Right-handed alpha
Helix 43
9
C
165 170Right-handed alpha
Helix 44
10
C
170 175Right-handed alpha
Helix 45
11
C
181 190Right-handed alpha
Helix 46
12
C
191 193Right-handed 310
Helix 47
13
C
195 197Right-handed 310
Helix 48
14
C
198 208Right-handed alpha
Helix 49
15
C
214 231Right-handed alpha
Helix 50
16
C
247 257Right-handed alpha
Helix 51
17
C
272 277Right-handed alpha
Helix 52
18
C
277 304Right-handed alpha
Helix 53
19
D
41 46Right-handed 310
Helix 54
20
D
48 53Right-handed alpha
Helix 55
21
D
54 56Right-handed 310
Helix 56
22
D
77 92Right-handed alpha
Helix 57
23
D
103 116Right-handed alpha
Helix 58
24
D
134 138Right-handed 310
Helix 59
25
D
141 153Right-handed alpha
Helix 60
26
D
155 162Right-handed alpha
Helix 61
27
D
165 170Right-handed alpha
Helix 62
28
D
170 175Right-handed alpha
Helix 63
29
D
181 190Right-handed alpha
Helix 64
30
D
191 193Right-handed 310
Helix 65
31
D
195 197Right-handed 310
Helix 66
32
D
198 208Right-handed alpha
Helix 67
33
D
214 231Right-handed alpha
Helix 68
34
D
247 257Right-handed alpha
Helix 69
35
D
272 276Right-handed 310
Helix 70
36
D
277 297Right-handed alpha
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There are 4 sheets in PDB entry 4K2A. Click on sheet of interest to get list of strands forming it: A, B, C, D,

There are 8 strands in A sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
C
8 14first strand
Strand 2
C
17 24anti-parallel
Strand 3
C
57 61anti-parallel
Strand 4
C
31 35parallel
Strand 5
C
97 102parallel
Strand 6
C
120 126parallel
Strand 7
C
235 242parallel
Strand 8
C
261 269parallel
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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
D
8 14first strand
Strand 2
D
17 24anti-parallel
Strand 3
D
57 61anti-parallel
Strand 4
D
31 35parallel
Strand 5
D
97 102parallel
Strand 6
D
120 126parallel
Strand 7
D
235 242parallel
Strand 8
D
261 269parallel
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There are 8 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
8 14first strand
Strand 2
A
17 24anti-parallel
Strand 3
A
57 61anti-parallel
Strand 4
A
31 35parallel
Strand 5
A
97 102parallel
Strand 6
A
120 126parallel
Strand 7
A
235 242parallel
Strand 8
A
261 269parallel
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There are 8 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
8 14first strand
Strand 2
B
17 24anti-parallel
Strand 3
B
57 61anti-parallel
Strand 4
B
31 35parallel
Strand 5
B
97 102parallel
Strand 6
B
120 126parallel
Strand 7
B
235 242parallel
Strand 8
B
261 269parallel
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