Analysis of interatomic Contacts of Structural Units in PDB entry:
4IQN


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 4IQN entry

There are 14 chains in PDB entry 4IQN (CSU analysis of residue contacts immediately below table)
Chain ID Initial residueTerminal residue
A
 ALA 0LEU 52
A
 ALA 54ALA 174
A
 ASP 176ALA 215
A
 LEU 217VAL 221
B
 MSE 1VAL 12
B
 VAL 15ARG 35
B
 TYR 37LEU 52
B
 ALA 54TRP 189
B
 ALA 191ALA 219
C
 MSE 1VAL 12
C
 LYS 14LEU 52
C
 ALA 54TRP 189
C
 ALA 191ALA 215
C
 LEU 217LEU 220
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 35 helices in PDB entry 4IQN. Click on helix of interest for CSU analysis.
Helix
number 		Helix
ID		Chain
ID		 Initial
residue		Terminal
residue		 Helix class
Helix 1
1
A
4 16Right-handed alpha
Helix 2
2
A
25 32Right-handed alpha
Helix 3
3
A
49 57Right-handed alpha
Helix 4
4
A
72 78Right-handed 310
Helix 5
5
A
89 97Right-handed alpha
Helix 6
6
A
98 102Right-handed 310
Helix 7
7
A
105 110Right-handed 310
Helix 8
8
A
162 172Right-handed alpha
Helix 9
9
A
173 178Right-handed 310
Helix 10
10
A
180 184Right-handed 310
Helix 11
11
A
186 205Right-handed alpha
Helix 12
12
A
210 220Right-handed alpha
Helix 13
13
B
4 16Right-handed alpha
Helix 14
14
B
25 31Right-handed alpha
Helix 15
15
B
49 59Right-handed alpha
Helix 16
16
B
71 76Right-handed alpha
Helix 17
17
B
89 97Right-handed alpha
Helix 18
18
B
98 102Right-handed 310
Helix 19
19
B
105 110Right-handed 310
Helix 20
20
B
162 173Right-handed alpha
Helix 21
21
B
180 184Right-handed 310
Helix 22
22
B
186 206Right-handed alpha
Helix 23
23
B
210 219Right-handed alpha
Helix 24
24
C
4 16Right-handed alpha
Helix 25
25
C
25 32Right-handed alpha
Helix 26
26
C
49 59Right-handed alpha
Helix 27
27
C
71 76Right-handed alpha
Helix 28
28
C
89 97Right-handed alpha
Helix 29
29
C
98 103Right-handed 310
Helix 30
30
C
105 110Right-handed 310
Helix 31
31
C
162 172Right-handed alpha
Helix 32
32
C
180 184Right-handed 310
Helix 33
33
C
186 200Right-handed alpha
Helix 34
34
C
200 205Right-handed alpha
Helix 35
35
C
210 220Right-handed alpha
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There are 6 sheets in PDB entry 4IQN. Click on sheet of interest to get list of strands forming it: A, B, C, D, E, F,

There are 3 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
45 46first strand
Strand 2
A
33 35anti-parallel
Strand 3
A
83 84parallel
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There are 4 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
121 125first strand
Strand 2
A
132 137anti-parallel
Strand 3
A
148 152anti-parallel
Strand 4
A
155 158anti-parallel
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There are 3 strands in C sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
B
45 46first strand
Strand 2
B
33 35anti-parallel
Strand 3
B
83 84parallel
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There are 4 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
121 125first strand
Strand 2
B
132 137anti-parallel
Strand 3
B
148 152anti-parallel
Strand 4
B
155 158anti-parallel
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There are 3 strands in E sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
C
45 46first strand
Strand 2
C
33 35anti-parallel
Strand 3
C
83 84parallel
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There are 4 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
121 125first strand
Strand 2
C
132 137anti-parallel
Strand 3
C
148 152anti-parallel
Strand 4
C
155 158anti-parallel
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Please mail questions/suggestions concerning this page to Vladimir.Sobolev@weizmann. ac.il