Analysis of interatomic Contacts of Structural Units in PDB entry:
1I4D


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 1I4D entry

There are 3 chains in PDB entry 1I4D (CSU analysis of residue contacts immediately below table)
Chain ID Initial residueTerminal residue
A
 SER 23GLN 222
B
 VAL 26GLN 225
D
 GLN 2CYS 178
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 19 helices in PDB entry 1I4D. Click on helix of interest for CSU analysis.
Helix
number 		Helix
ID		Chain
ID		 Initial
residue		Terminal
residue		 Helix class
Helix 1
1
A
27 78Right-handed alpha
Helix 2
2
A
79 81Right-handed 310
Helix 3
3
A
82 120Right-handed alpha
Helix 4
4
A
120 150Right-handed alpha
Helix 5
5
A
163 221Right-handed alpha
Helix 6
6
B
28 78Right-handed alpha
Helix 7
7
B
82 99Right-handed alpha
Helix 8
8
B
100 120Right-handed alpha
Helix 9
9
B
120 148Right-handed alpha
Helix 10
10
B
164 224Right-handed alpha
Helix 11
11
D
15 26Right-handed alpha
Helix 12
12
D
61 65Right-handed 310
Helix 13
13
D
67 72Right-handed 310
Helix 14
14
D
86 96Right-handed alpha
Helix 15
15
D
96 105Right-handed alpha
Helix 16
16
D
116 121Right-handed alpha
Helix 17
17
D
122 132Right-handed alpha
Helix 18
18
D
138 149Right-handed alpha
Helix 19
19
D
164 178Right-handed alpha
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There is 1 sheet ( A) in PDB entry 1I4D.

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
D
40 46first strand
Strand 2
D
49 56anti-parallel
Strand 3
D
3 9parallel
Strand 4
D
77 83parallel
Strand 5
D
110 115parallel
Strand 6
D
153 156parallel
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