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


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 3IXQ entry

There are 4 chains in PDB entry 3IXQ (CSU analysis of residue contacts immediately below table)
Chain ID Initial residueTerminal residue
A
 SER 2LYS 226
B
 SER 2LYS 226
C
 SER 2LYS 226
D
 SER 2LYS 226
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 26 helices in PDB entry 3IXQ. Click on helix of interest for CSU analysis.
Helix
number 		Helix
ID		Chain
ID		 Initial
residue		Terminal
residue		 Helix class
Helix 1
1
A
3 15Right-handed alpha
Helix 2
2
A
16 18Right-handed 310
Helix 3
3
A
29 47Right-handed alpha
Helix 4
4
A
56 66Right-handed alpha
Helix 5
5
A
102 113Right-handed alpha
Helix 6
6
A
143 154Right-handed alpha
Helix 7
7
A
187 197Right-handed alpha
Helix 8
8
B
3 16Right-handed alpha
Helix 9
9
B
29 47Right-handed alpha
Helix 10
10
B
56 66Right-handed alpha
Helix 11
11
B
102 111Right-handed alpha
Helix 12
12
B
143 154Right-handed alpha
Helix 13
13
B
187 197Right-handed alpha
Helix 14
14
C
3 15Right-handed alpha
Helix 15
15
C
16 18Right-handed 310
Helix 16
16
C
29 47Right-handed alpha
Helix 17
17
C
56 66Right-handed alpha
Helix 18
18
C
102 113Right-handed alpha
Helix 19
19
C
143 154Right-handed alpha
Helix 20
20
C
187 197Right-handed alpha
Helix 21
21
D
3 16Right-handed alpha
Helix 22
22
D
29 46Right-handed alpha
Helix 23
23
D
56 66Right-handed alpha
Helix 24
24
D
102 111Right-handed alpha
Helix 25
25
D
143 154Right-handed alpha
Helix 26
26
D
187 197Right-handed alpha
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There are 13 sheets in PDB entry 3IXQ. Click on sheet of interest to get list of strands forming it: A, B, C, D, E, F, G, H, I, J, K, L, M,

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
A
51 54first strand
Strand 2
A
23 26parallel
Strand 3
A
80 83parallel
Strand 4
A
115 121parallel
Strand 5
A
212 217parallel
Strand 6
A
220 224anti-parallel
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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
125 126first strand
Strand 2
A
87 89parallel
Strand 3
A
95 96anti-parallel
Strand 4
A
206 207anti-parallel
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There are 4 strands in C sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
A
157 160first strand
Strand 2
A
177 182anti-parallel
Strand 3
A
135 139anti-parallel
Strand 4
A
201 204anti-parallel
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There are 6 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
51 54first strand
Strand 2
B
23 26parallel
Strand 3
B
80 83parallel
Strand 4
B
115 121parallel
Strand 5
B
212 216parallel
Strand 6
B
221 224anti-parallel
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There are 4 strands in E sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
B
125 126first strand
Strand 2
B
87 89parallel
Strand 3
B
95 96anti-parallel
Strand 4
B
206 207anti-parallel
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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
B
157 160first strand
Strand 2
B
177 182anti-parallel
Strand 3
B
135 139anti-parallel
Strand 4
B
201 204anti-parallel
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There are 6 strands in G sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
C
51 54first strand
Strand 2
C
23 26parallel
Strand 3
C
80 83parallel
Strand 4
C
115 121parallel
Strand 5
C
212 217parallel
Strand 6
C
220 224anti-parallel
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There are 4 strands in H sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
C
125 126first strand
Strand 2
C
87 89parallel
Strand 3
C
95 96anti-parallel
Strand 4
C
206 207anti-parallel
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There are 4 strands in I sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
C
157 160first strand
Strand 2
C
177 182anti-parallel
Strand 3
C
135 139anti-parallel
Strand 4
C
201 204anti-parallel
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There are 2 strands in J sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
C
162 163first strand
Strand 2
C
168 169anti-parallel
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There are 6 strands in K sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
D
51 54first strand
Strand 2
D
23 26parallel
Strand 3
D
80 83parallel
Strand 4
D
115 121parallel
Strand 5
D
212 216parallel
Strand 6
D
221 224anti-parallel
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There are 4 strands in L sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
D
125 126first strand
Strand 2
D
87 89parallel
Strand 3
D
95 96anti-parallel
Strand 4
D
206 207anti-parallel
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There are 4 strands in M sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
D
157 160first strand
Strand 2
D
177 182anti-parallel
Strand 3
D
135 139anti-parallel
Strand 4
D
201 204anti-parallel
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Please mail questions/suggestions concerning this page to Vladimir.Sobolev@weizmann. ac.il