Analysis of interatomic Contacts of Structural Units in PDB entry:
2CHQ


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 2CHQ entry

There are 3 chains in PDB entry 2CHQ (CSU analysis of residue contacts immediately below table)
Chain ID Initial residueTerminal residue
A
 ILE 6LYS 319
B
 ILE 6LYS 319
C
 ILE 6LYS 319
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 56 helices in PDB entry 2CHQ. Click on helix of interest for CSU analysis.
Helix
number 		Helix
ID		Chain
ID		 Initial
residue		Terminal
residue		 Helix class
Helix 1
1
A
15 19Right-handed 310
Helix 2
2
A
22 31Right-handed alpha
Helix 3
3
A
50 64Right-handed alpha
Helix 4
4
A
66 71Right-handed alpha
Helix 5
5
A
86 95Right-handed alpha
Helix 6
6
A
110 114Right-handed 310
Helix 7
7
A
115 121Right-handed alpha
Helix 8
8
A
122 126Right-handed 310
Helix 9
9
A
141 145Right-handed 310
Helix 10
10
A
146 151Right-handed alpha
Helix 11
11
A
162 176Right-handed alpha
Helix 12
12
A
182 192Right-handed alpha
Helix 13
13
A
196 210Right-handed alpha
Helix 14
14
A
215 223Right-handed alpha
Helix 15
15
A
227 241Right-handed alpha
Helix 16
16
A
242 257Right-handed alpha
Helix 17
17
A
260 274Right-handed alpha
Helix 18
18
A
280 298Right-handed alpha
Helix 19
19
A
301 316Right-handed alpha
Helix 20
20
B
15 19Right-handed 310
Helix 21
21
B
22 31Right-handed alpha
Helix 22
22
B
50 64Right-handed alpha
Helix 23
23
B
86 95Right-handed alpha
Helix 24
24
B
110 114Right-handed 310
Helix 25
25
B
115 121Right-handed alpha
Helix 26
26
B
122 126Right-handed 310
Helix 27
27
B
141 145Right-handed 310
Helix 28
28
B
146 151Right-handed alpha
Helix 29
29
B
162 176Right-handed alpha
Helix 30
30
B
182 192Right-handed alpha
Helix 31
31
B
196 210Right-handed alpha
Helix 32
32
B
215 223Right-handed alpha
Helix 33
33
B
227 241Right-handed alpha
Helix 34
34
B
242 258Right-handed alpha
Helix 35
35
B
260 274Right-handed alpha
Helix 36
36
B
280 298Right-handed alpha
Helix 37
37
B
301 316Right-handed alpha
Helix 38
38
C
15 19Right-handed 310
Helix 39
39
C
22 30Right-handed alpha
Helix 40
40
C
31 33Right-handed 310
Helix 41
41
C
50 64Right-handed alpha
Helix 42
42
C
86 95Right-handed alpha
Helix 43
43
C
110 114Right-handed 310
Helix 44
44
C
115 121Right-handed alpha
Helix 45
45
C
122 126Right-handed 310
Helix 46
46
C
141 145Right-handed 310
Helix 47
47
C
146 151Right-handed alpha
Helix 48
48
C
162 176Right-handed alpha
Helix 49
49
C
182 192Right-handed alpha
Helix 50
50
C
196 209Right-handed alpha
Helix 51
51
C
215 223Right-handed alpha
Helix 52
52
C
227 241Right-handed alpha
Helix 53
53
C
242 258Right-handed alpha
Helix 54
54
C
260 274Right-handed alpha
Helix 55
55
C
280 298Right-handed alpha
Helix 56
56
C
301 316Right-handed alpha
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There are 3 sheets in PDB entry 2CHQ. Click on sheet of interest to get list of strands forming it: AA, BA, CA,

There are 5 strands in AA sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
A
72 75first strand
Strand 2
A
104 109parallel
Strand 3
A
133 139parallel
Strand 4
A
41 44parallel
Strand 5
A
154 157parallel
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There are 5 strands in BA sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
B
72 75first strand
Strand 2
B
104 109parallel
Strand 3
B
133 139parallel
Strand 4
B
41 44parallel
Strand 5
B
154 157parallel
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There are 5 strands in CA sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
C
72 75first strand
Strand 2
C
104 109parallel
Strand 3
C
133 139parallel
Strand 4
C
41 44parallel
Strand 5
C
154 157parallel
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