Analysis of interatomic Contacts of Structural Units in PDB entry:
3IXS


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 3IXS entry

There are 12 chains in PDB entry 3IXS (CSU analysis of residue contacts immediately below table)
Chain ID Initial residueTerminal residue
A
 ALA 223LYS 333
B
 PRO 146LYS 176
C
 ALA 223LYS 333
D
 GLY 143LYS 176
E
 ALA 223THR 332
F
 ARG 145LYS 176
G
 SER 224LYS 333
H
 THR 144SER 179
I
 SER 224THR 332
J
 ARG 147LYS 176
K
 ALA 223LYS 333
L
 ARG 145LYS 176
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 20 helices in PDB entry 3IXS. Click on helix of interest for CSU analysis.
Helix
number 		Helix
ID		Chain
ID		 Initial
residue		Terminal
residue		 Helix class
Helix 1
1
A
255 272Right-handed alpha
Helix 2
2
A
282 286Right-handed 310
Helix 3
3
A
287 289Right-handed 310
Helix 4
4
A
310 318Right-handed alpha
Helix 5
5
C
255 276Right-handed alpha
Helix 6
6
C
279 283Right-handed 310
Helix 7
7
C
287 289Right-handed 310
Helix 8
8
C
310 319Right-handed alpha
Helix 9
9
E
255 272Right-handed alpha
Helix 10
10
E
287 289Right-handed 310
Helix 11
11
E
310 318Right-handed alpha
Helix 12
12
F
152 156Right-handed 310
Helix 13
13
G
255 273Right-handed alpha
Helix 14
14
G
287 289Right-handed 310
Helix 15
15
G
310 319Right-handed alpha
Helix 16
16
I
255 273Right-handed alpha
Helix 17
17
I
310 318Right-handed alpha
Helix 18
18
K
255 271Right-handed alpha
Helix 19
19
K
310 318Right-handed alpha
Helix 20
20
L
152 156Right-handed 310
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There are 6 sheets in PDB entry 3IXS. Click on sheet of interest to get list of strands forming it: A, B, C, D, E, F,

There are 7 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
302 304first strand
Strand 2
A
291 296anti-parallel
Strand 3
A
325 331anti-parallel
Strand 4
A
226 232parallel
Strand 5
A
246 250anti-parallel
Strand 6
B
166 175anti-parallel
Strand 7
B
151 163anti-parallel
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There are 13 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
302 304first strand
Strand 2
A
291 296anti-parallel
Strand 3
A
325 331anti-parallel
Strand 4
A
226 232parallel
Strand 5
A
246 250anti-parallel
Strand 6
B
166 175anti-parallel
Strand 7
D
151 163parallel
Strand 8
D
166 175anti-parallel
Strand 9
C
246 251anti-parallel
Strand 10
C
225 232anti-parallel
Strand 11
C
325 331parallel
Strand 12
C
291 296anti-parallel
Strand 13
C
302 304anti-parallel
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There are 7 strands in C sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
E
302 304first strand
Strand 2
E
291 296anti-parallel
Strand 3
E
325 331anti-parallel
Strand 4
E
226 232parallel
Strand 5
E
246 250anti-parallel
Strand 6
F
166 173anti-parallel
Strand 7
F
157 163anti-parallel
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There are 13 strands in D sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
E
302 304first strand
Strand 2
E
291 296anti-parallel
Strand 3
E
325 331anti-parallel
Strand 4
E
226 232parallel
Strand 5
E
246 250anti-parallel
Strand 6
F
166 173anti-parallel
Strand 7
H
151 163parallel
Strand 8
H
166 175anti-parallel
Strand 9
G
246 251anti-parallel
Strand 10
G
225 232anti-parallel
Strand 11
G
325 331parallel
Strand 12
G
291 296anti-parallel
Strand 13
G
302 304anti-parallel
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There are 13 strands in E sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
I
302 304first strand
Strand 2
I
291 296anti-parallel
Strand 3
I
325 331anti-parallel
Strand 4
I
225 232parallel
Strand 5
I
246 251anti-parallel
Strand 6
J
166 175anti-parallel
Strand 7
J
151 163anti-parallel
Strand 8
L
166 173parallel
Strand 9
K
246 251anti-parallel
Strand 10
K
225 232anti-parallel
Strand 11
K
325 331parallel
Strand 12
K
291 296anti-parallel
Strand 13
K
302 304anti-parallel
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There are 9 strands in F sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
I
302 304first strand
Strand 2
I
291 296anti-parallel
Strand 3
I
325 331anti-parallel
Strand 4
I
225 232parallel
Strand 5
I
246 251anti-parallel
Strand 6
J
166 175anti-parallel
Strand 7
J
151 163anti-parallel
Strand 8
L
166 173parallel
Strand 9
L
157 163anti-parallel
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Please mail questions/suggestions concerning this page to Vladimir.Sobolev@weizmann. ac.il