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


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 4IXN entry

There are 2 chains in PDB entry 4IXN (CSU analysis of residue contacts immediately below table)
Chain ID Initial residueTerminal residue
A
 MET 1LYS 318
B
 MET 1LYS 318
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 24 helices in PDB entry 4IXN. Click on helix of interest for CSU analysis.
Helix
number 		Helix
ID		Chain
ID		 Initial
residue		Terminal
residue		 Helix class
Helix 1
1
A
14 27Right-handed alpha
Helix 2
2
A
72 86Right-handed alpha
Helix 3
3
A
103 111Right-handed alpha
Helix 4
4
A
114 120Right-handed alpha
Helix 5
5
A
134 142Right-handed alpha
Helix 6
6
A
142 151Right-handed alpha
Helix 7
7
A
159 164Right-handed alpha
Helix 8
8
A
166 177Right-handed alpha
Helix 9
9
A
191 196Right-handed 310
Helix 10
10
A
217 221Right-handed 310
Helix 11
11
A
236 251Right-handed alpha
Helix 12
12
A
305 315Right-handed alpha
Helix 13
13
B
14 27Right-handed alpha
Helix 14
14
B
72 86Right-handed alpha
Helix 15
15
B
103 111Right-handed alpha
Helix 16
16
B
114 120Right-handed alpha
Helix 17
17
B
134 142Right-handed alpha
Helix 18
18
B
142 151Right-handed alpha
Helix 19
19
B
159 164Right-handed alpha
Helix 20
20
B
166 177Right-handed alpha
Helix 21
21
B
191 196Right-handed 310
Helix 22
22
B
215 220Right-handed alpha
Helix 23
23
B
236 251Right-handed alpha
Helix 24
24
B
305 315Right-handed alpha
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There are 4 sheets in PDB entry 4IXN. Click on sheet of interest to get list of strands forming it: A, B, C, D,

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
45 50first strand
Strand 2
A
56 60anti-parallel
Strand 3
A
65 67anti-parallel
Strand 4
A
33 36parallel
Strand 5
A
93 99parallel
Strand 6
A
4 11parallel
Strand 7
A
121 131parallel
Strand 8
A
154 158parallel
Strand 9
A
182 184parallel
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There are 5 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
224 231first strand
Strand 2
A
295 302anti-parallel
Strand 3
A
255 262anti-parallel
Strand 4
A
269 276anti-parallel
Strand 5
A
279 287anti-parallel
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There are 9 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 50first strand
Strand 2
B
56 60anti-parallel
Strand 3
B
65 67anti-parallel
Strand 4
B
33 36parallel
Strand 5
B
93 99parallel
Strand 6
B
4 11parallel
Strand 7
B
121 131parallel
Strand 8
B
154 158parallel
Strand 9
B
182 184parallel
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There are 5 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
224 231first strand
Strand 2
B
295 302anti-parallel
Strand 3
B
255 262anti-parallel
Strand 4
B
269 276anti-parallel
Strand 5
B
279 287anti-parallel
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Please mail questions/suggestions concerning this page to Vladimir.Sobolev@weizmann. ac.il