Analysis of interatomic Contacts of Structural Units in PDB entry:
1SG4


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 1SG4 entry

There are 3 chains in PDB entry 1SG4 (CSU analysis of residue contacts immediately below table)
Chain ID Initial residueTerminal residue
A
 SER 2MET 250
B
 GLN 3GLY 260
C
 GLN 3LEU 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 39 helices in PDB entry 1SG4. Click on helix of interest for CSU analysis.
Helix
number 		Helix
ID		Chain
ID		 Initial
residue		Terminal
residue		 Helix class
Helix 1
1
A
29 46Right-handed alpha
Helix 2
2
A
68 72Right-handed 310
Helix 3
3
A
75 95Right-handed alpha
Helix 4
4
A
109 117Right-handed alpha
Helix 5
5
A
135 140Right-handed 310
Helix 6
6
A
144 156Right-handed alpha
Helix 7
7
A
156 167Right-handed alpha
Helix 8
8
A
171 178Right-handed alpha
Helix 9
9
A
186 188Right-handed 310
Helix 10
10
A
189 203Right-handed alpha
Helix 11
11
A
205 226Right-handed alpha
Helix 12
12
A
227 240Right-handed alpha
Helix 13
13
A
241 249Right-handed alpha
Helix 14
14
B
29 46Right-handed alpha
Helix 15
15
B
67 71Right-handed 310
Helix 16
16
B
75 95Right-handed alpha
Helix 17
17
B
109 119Right-handed alpha
Helix 18
18
B
135 140Right-handed 310
Helix 19
19
B
144 156Right-handed alpha
Helix 20
20
B
156 167Right-handed alpha
Helix 21
21
B
171 179Right-handed alpha
Helix 22
22
B
186 188Right-handed 310
Helix 23
23
B
189 203Right-handed alpha
Helix 24
24
B
205 226Right-handed alpha
Helix 25
25
B
227 241Right-handed alpha
Helix 26
26
B
241 258Right-handed alpha
Helix 27
27
C
29 46Right-handed alpha
Helix 28
28
C
67 71Right-handed 310
Helix 29
29
C
75 95Right-handed alpha
Helix 30
30
C
109 119Right-handed alpha
Helix 31
31
C
135 140Right-handed 310
Helix 32
32
C
144 156Right-handed alpha
Helix 33
33
C
156 167Right-handed alpha
Helix 34
34
C
171 179Right-handed alpha
Helix 35
35
C
186 188Right-handed 310
Helix 36
36
C
189 203Right-handed alpha
Helix 37
37
C
205 226Right-handed alpha
Helix 38
38
C
227 240Right-handed alpha
Helix 39
39
C
241 252Right-handed alpha
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There are 7 sheets in PDB entry 1SG4. Click on sheet of interest to get list of strands forming it: A, B, C, D, E, F, G,

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
15 20anti-parallel
Strand 3
A
51 56parallel
Strand 4
A
99 104parallel
Strand 5
A
121 125parallel
Strand 6
A
183 185parallel
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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
27 28first strand
Strand 2
A
65 66parallel
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There are 2 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
60 61first strand
Strand 2
A
106 107parallel
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There are 6 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
5 10first strand
Strand 2
B
15 20anti-parallel
Strand 3
B
51 56parallel
Strand 4
B
99 104parallel
Strand 5
B
121 125parallel
Strand 6
B
183 185parallel
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There are 2 strands in E sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
B
60 61first strand
Strand 2
B
106 107parallel
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There are 6 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
5 9first strand
Strand 2
C
14 20anti-parallel
Strand 3
C
49 56parallel
Strand 4
C
99 104parallel
Strand 5
C
121 125parallel
Strand 6
C
183 185parallel
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There are 2 strands in G sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
C
60 61first strand
Strand 2
C
106 107parallel
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