Analysis of interatomic Contacts of Structural Units in PDB entry:
1I2N


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 1I2N entry

There are 2 chains in PDB entry 1I2N (CSU analysis of residue contacts immediately below table)
Chain ID Initial residueTerminal residue
A
 THR 2LEU 317
B
 THR 2LEU 317
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 36 helices in PDB entry 1I2N. Click on helix of interest for CSU analysis.
Helix
number 		Helix
ID		Chain
ID		 Initial
residue		Terminal
residue		 Helix class
Helix 1
1
A
3 9Right-handed alpha
Helix 2
2
A
20 28Right-handed alpha
Helix 3
3
A
35 43Right-handed alpha
Helix 4
4
A
44 47Right-handed 310
Helix 5
5
A
48 63Right-handed alpha
Helix 6
6
A
65 87Right-handed alpha
Helix 7
7
A
98 102Right-handed 310
Helix 8
8
A
104 122Right-handed alpha
Helix 9
9
A
125 127Right-handed 310
Helix 10
10
A
136 149Right-handed alpha
Helix 11
11
A
160 170Right-handed alpha
Helix 12
12
A
178 190Right-handed alpha
Helix 13
13
A
196 199Right-handed 310
Helix 14
14
A
200 216Right-handed alpha
Helix 15
15
A
229 235Right-handed alpha
Helix 16
16
A
245 254Right-handed alpha
Helix 17
17
A
277 286Right-handed alpha
Helix 18
18
A
288 315Right-handed alpha
Helix 19
19
B
3 9Right-handed alpha
Helix 20
20
B
20 28Right-handed alpha
Helix 21
21
B
35 43Right-handed alpha
Helix 22
22
B
44 47Right-handed 310
Helix 23
23
B
48 63Right-handed alpha
Helix 24
24
B
65 87Right-handed alpha
Helix 25
25
B
98 102Right-handed 310
Helix 26
26
B
104 122Right-handed alpha
Helix 27
27
B
125 127Right-handed 310
Helix 28
28
B
136 149Right-handed alpha
Helix 29
29
B
160 170Right-handed alpha
Helix 30
30
B
178 190Right-handed alpha
Helix 31
31
B
196 199Right-handed 310
Helix 32
32
B
200 216Right-handed alpha
Helix 33
33
B
229 235Right-handed alpha
Helix 34
34
B
245 254Right-handed alpha
Helix 35
35
B
277 286Right-handed alpha
Helix 36
36
B
288 315Right-handed alpha
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There are 2 sheets in PDB entry 1I2N. Click on sheet of interest to get list of strands forming it: A, B,

There are 9 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
13 17first strand
Strand 2
A
31 33parallel
Strand 3
A
93 96parallel
Strand 4
A
129 134parallel
Strand 5
A
153 158parallel
Strand 6
A
174 177parallel
Strand 7
A
221 224parallel
Strand 8
A
241 244parallel
Strand 9
A
13 17parallel
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There are 9 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
13 17first strand
Strand 2
B
31 33parallel
Strand 3
B
93 96parallel
Strand 4
B
129 134parallel
Strand 5
B
153 158parallel
Strand 6
B
174 177parallel
Strand 7
B
221 224parallel
Strand 8
B
241 244parallel
Strand 9
B
13 17parallel
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