Analysis of interatomic Contacts of Structural Units in PDB entry:
1I4T


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 1I4T entry

There are 3 chains in PDB entry 1I4T (CSU analysis of residue contacts immediately below table)
Chain ID Initial residueTerminal residue
A
 SER 23GLN 217
B
 VAL 26THR 223
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 1I4T. 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 151Right-handed alpha
Helix 5
5
A
173 215Right-handed alpha
Helix 6
6
B
29 79Right-handed alpha
Helix 7
7
B
82 120Right-handed alpha
Helix 8
8
B
120 135Right-handed alpha
Helix 9
9
B
136 146Right-handed alpha
Helix 10
10
B
177 182Right-handed alpha
Helix 11
11
B
187 220Right-handed alpha
Helix 12
12
D
15 26Right-handed alpha
Helix 13
13
D
61 65Right-handed 310
Helix 14
14
D
68 72Right-handed 310
Helix 15
15
D
86 96Right-handed alpha
Helix 16
16
D
96 105Right-handed alpha
Helix 17
17
D
124 129Right-handed alpha
Helix 18
18
D
142 150Right-handed alpha
Helix 19
19
D
164 178Right-handed alpha
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There is 1 sheet ( A) in PDB entry 1I4T.

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 45first strand
Strand 2
D
50 57anti-parallel
Strand 3
D
3 9parallel
Strand 4
D
77 83parallel
Strand 5
D
110 115parallel
Strand 6
D
153 157parallel
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